Patent Description:
Generally, catalysts used for olefin polymerization can be classified into three categories: traditional Ziegler-Natta catalysts, metallocene catalysts, and non-metallocene catalysts. Regarding traditional Ziegler-Natta catalysts for propene polymerization, with the development of electron donor compounds in catalysts, polyolefin catalysts are also constantly undated. The development of catalysts has experienced the <NUM>st generation of TiCl<NUM>AlCl<NUM>/AlEt<NUM>Cl system, the <NUM>nd generation of TiCl<NUM>/AlEt<NUM>Cl system, the <NUM>rd generation of TiCl<NUM>·ED·MgCl<NUM>/AlR<NUM>·ED system using magnesium chloride as carriers, monoester or aromatic diester as internal electron donor, and silane as external electron donor, and the newly developed catalyst system using diether compounds and diester compounds as internal electron donors. The activity of catalysts for catalyzing polymerization reaction and the isotacticity of the obtained polypropylene has been greatly improved. In existing technologies, titanium catalysts used for propene polymerization mainly use magnesium, titanium, halogen, and electron donor as basic components, among which electron donor compounds are indispensible elements of catalyst components. Till now, various internal electron donor compounds have been disclosed, these compounds including, for example, monocarboxylic esters or polycarboxylic esters, acid anhydrides, ketones, monoethers or polyethers, alcohols, amines, and derivatives thereof, and so on, among which commonly used ones are aromatic dicarboxylic esters such as di-n-butyl phthalate (DNBP) or diisobutyl phthalate (DIBP), and so on. Reference can be made to US patent <CIT>. US patent <CIT> and European patent <CIT> disclose components of catalysts used for olefin polymerization, in which <NUM>,<NUM>-diether compounds having two ether groups are used as electron donors, such compounds including, for example, <NUM>-isopropy-<NUM>,<NUM>-isopentyl-<NUM>,<NUM>-dimethoxy propane, <NUM>,<NUM>-diisobutyl-<NUM>,<NUM>-dimethoxy propane, <NUM>,<NUM>-di(methoxymethyl)fluorene, etc. Later, a class of special aliphatic dicarboxylic ester compounds, such as succinate, malonic ester, glutarate, and so on, are disclosed (see <CIT>, <CIT>, <CIT>, <CIT>, and <CIT>). The use of such electron donor compounds can not only improve the activity of a catalyst, but also enable an obtained propene polymer to have a wider molecular weight distribution.

The most common non-metallocene catalysts for olefin polymerization are C=N polydentate ligand-containing transition metal complexes. For example, Brookhart et al first found that diimine late transition metal complexes had a relatively high catalytic activity when used for catalyzing olefin polymerization (<NPL>;<NPL>). Since then, the study of non-metallocene organic complexes has aroused great interest among researchers. In <NUM>, McConville et al reported a class of Ti and Zr metal complexes (as shown in Formula <NUM>) chelating β-diamine, which were first examples of high-catalytic-activity N-N polydentate ligand-containing early transition metal complexes for catalyzing olefin polymerization (<NPL>; <NPL>).

β-diamine complexes (as shown in Formula <NUM>) are also a class of important N-N ligand-containing non-metallocene catalysts for olefin polymerization. Because of the specific structures of these complexes, the steric hindrance and electronic effect of the ligand can be easily regulated and controlled through the change of a substituent on arylamine. With the variation of metals and the surroundings of the ligand, the β-diamine ligand can bond in different ways to different metals to form different metal complexes. These ligand-containing compounds are advantageous in that they are easy to synthesize and easy to regulate and control in terms of structure, and are comparatively idea complexes for studying the relationship between the structure and the properties of a catalyst. Ligand-containing compounds with such structures have therefore attracted wide attention among researchers (<NPL>; <NPL>; <NPL>).

Polyethylene Laboratory of Sinopec Beijing Research Institute of Chemical Industry disclosed, in Chinese patent <CIT>, a class of bidentate ligand-containing metal complexes for use in the copolymerization reaction of ethylene, and later disclosed, respectively in Chinese patents <CIT>), <CIT>), <CIT>), a similar transition metal complex catalyst for use in the copolymerization reaction of ethylene. Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences disclosed, in Chinese patents <CIT> and <CIT>, a class of polydentate ligand-containing metal catalysts with similar structures, for use in the copolymerization reaction of ethylene to prepare ultra-low-branched high-molecular-weight polyethylene.

In the disclosure of the above patents, the catalysts used for olefin polymerization are relevant ligand-containing metal compounds. Up till now, seldom are there reports about the direct use of such ligand-containing metal compounds in the preparation of a catalyst for propene polymerization and reports about their use related to propene polymerization.

<CIT> relates to a propylene polymerization by using a catalyst component containing magnesium, titanium, halogen and an internal electron donor containing two imine groups.

In view of the deficiencies in the above art, an objective of the present invention is to develop a catalyst component for olefin polymerization, a catalyst containing the same, and use thereof. An internal electron donor as shown in Formula I (an imine compound with a ketone group) is added during the preparation of a catalyst, so as to form a new type of a catalytic polymerization reaction system. When the catalyst is used in olefin polymerization reaction especially propene polymerization reaction, not only the catalyst has a long-term high activity and a good hydrogen response, but also the obtained polymer has characteristics of an adjustable isotactic index and a wide molecular weight distribution.

To achieve the above objective, the present invention provides a catalyst component for olefin polymerization, comprising magnesium, titanium, halogen and an internal electron donor, wherein the internal electron donor comprises an imine compound with a ketone group as shown in Formula I,
<CHM>
wherein in Formula I, R is selected from a group consisting of hydroxyl,C<NUM>-C<NUM> alkyl with or without a halogen atom substitute, C<NUM>-C<NUM> alkenyl with or without a halogen atom substitute group, and C<NUM>-C<NUM> aryl with or without a halogen atom substitute group; R<NUM>-R<NUM> may be identical to or different from each other, each independently selected from a group consisting of hydrogen, C<NUM>-C<NUM> alkyl, C<NUM>-C<NUM> alkenyl, C<NUM>-C<NUM> arylalkyl, C<NUM>-C<NUM> alkylaryl, C<NUM>-C<NUM> fused aryl, halogen atoms, hydroxyl and C<NUM>-C<NUM> alkoxy; X is nitrogen or CH.

According to some preferred embodiments, R is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl, hydroxyalkyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, naphthyl, biphenyl, or a heterocycle-containing group. The heterocycle-containing group is preferably a pyrrole-containing group, a pyridine-containing group, a pyrimidine-containing group or a quinolone-containing group.

According to some more preferred embodiments, R is selected from a group consisting of <NUM>,<NUM>-dialkylphenyl (such as <NUM>,<NUM>-dimethylphenyl, <NUM>,<NUM>-diethylphenyl, <NUM>,<NUM>-diisopropylphenyl), <NUM>,<NUM>,<NUM>-trialkylphenyl (such as <NUM>,<NUM>,<NUM>-trimethylphenyl, <NUM>,<NUM>,<NUM>-triethylphenyl, <NUM>,<NUM>,<NUM>-triisopropylphenyl), hydroxyalkyl-substituted phenyl (such as hydroxypropylphenyl), <NUM>-quinolyl, <NUM>-naphthyl, benzyl, and <NUM>-quinolyl.

According to some preferred embodiments, each of R<NUM>-R<NUM> is independently hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, or isobutyl.

According to some preferred embodiments, each of R<NUM> and R<NUM> is independently selected from a group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, and isobutyl.

According to the invention, X is nitrogen atom or CH.

In the present invention, the imine compound as shown in Formula I is preferably one or more selected from the following compounds: <NUM>-(butylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(hexylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(pentylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(octylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(benzylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-hydroxy butylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-hydroxy phenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>,<NUM>-dimethylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(phenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-naphthylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-naphthylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-chlorophenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-trifluoromethylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-trifluoromethylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-hydroxy -<NUM>-chlorophenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>,<NUM>, <NUM>-trimethylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-ethylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-ethylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-propylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-propylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-propylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-butylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(<NUM>-butylphenylimino)ethyl-<NUM>-acetylpyridine, <NUM>-(phenylimino)ethylacetophenone, <NUM>-(<NUM>,<NUM>-dimethylphenylimino)ethylacetophenone, <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethylacetophenone, <NUM>-(<NUM>-naphthylimino)ethylacetophenone, <NUM>-(benzylimino)ethylacetophenone, <NUM>-(<NUM>-quinolylimino)ethylacetophenone, <NUM>-(<NUM>-quinolylimino)ethylacetophenone, <NUM>-(butylimino)ethyl-<NUM>-propionylpyridine, <NUM>-(hexylimino)ethyl-<NUM>-propionylpyridine, <NUM>-(<NUM>,<NUM>-dimethylphenylimino)ethyl-<NUM>-propionylpyridine, <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-propionylpyridine, <NUM>-(phenylimino)ethyl-<NUM>-propionylpyridine, <NUM>-(pentylimino)ethyl-<NUM>-butyrylpyridine, <NUM>-(<NUM>-naphthylimino)ethyl-<NUM>-butyrylpyridine, <NUM>-(butylimino)propyl-<NUM>-propionylpyridine, <NUM>-(hexylimino)butyl-<NUM>-propionylpyridine, <NUM>-(<NUM>,<NUM>-dimethylphenylimino)propyl-<NUM>-propionylpyridine, <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)propyl-<NUM>-propionylpyridine, <NUM>-(phenylimino)propyl-<NUM>-propionylpyridine, <NUM>-(pentylimino)propyl-<NUM>-butyrylpyridine, and <NUM>-(<NUM>-naphthylimino)propyl-<NUM>-butyrylpyridine.

According to some preferred embodiments, based on the weight of the catalyst component, a content of magnesium is in a range of <NUM> wt%-<NUM> wt%, a content of titanium is in a range of <NUM> wt%-<NUM>. 0wt%, a content of halogen is in a range of <NUM> wt%-<NUM> wt%, and a content of internal electron donor is in a range of <NUM> wt%-<NUM> wt%.

In some preferred embodiments of the present invention, the internal electron donor may further comprise at least one additional electron donor compound. Preferably, the additional electron donor compound is one, two, or three selected from a group consisting of aromatic carboxylate ester compounds, diol ester compounds, diphenol ester compounds, and diether compounds.

In some preferred embodiments of the present invention, a molar ratio of the imine compound with a ketone group as shown in Formula I to the additional electron donor compound is in a range of <NUM>: (<NUM>-<NUM>), preferably in a range of <NUM>: (<NUM>-<NUM>).

According to some preferred embodiments of the present invention, the aromatic carboxylate ester compound is as shown in Formula II,
<CHM>
wherein in Formula II, RI is C<NUM>-C<NUM> alkyl with or without a halogen atom substitute, C<NUM>-C<NUM> alkenyl with or without a halogen atom substitute, C<NUM>-C<NUM> alkynyl with or without a halogen atom substitute, or C<NUM>-C<NUM> alkylaryl with or without a halogen atom substitute; RII is C<NUM>-C<NUM> alkyl, C<NUM>-C<NUM> alkenyl, C<NUM>-C<NUM> alkynyl, or C<NUM>-C<NUM> alkylaryl or ester group or amido group; RIII, RIV, RV, and RVI may be identical to or different from each other, each independently selected from a group consisting of C<NUM>-C<NUM> alkyl, C<NUM>-C<NUM> alkenyl, C<NUM>-C<NUM> alkynyl, C<NUM>-C<NUM> alkoxy, C<NUM>-C<NUM> arylalkyl, C<NUM>-C<NUM> alkylaryl, C<NUM>-C<NUM> fused aryl, and halogen.

According some embodiments, in Formula II, RI is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, hexyl, ethenyl, allyl, ethynyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, naphthyl, or biphenyl.

According some embodiments, in Formula II, RII is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, hexyl, ethenyl, allyl, ethynyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, naphthyl, biphenyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl, butoxycarbonyl, isobutoxycarbonyl, hexoxycarbonyl, isohexoxycarbonyl, neohexoxycarbonyl, heptyloxycarbonyl, isoheptyloxycarbonyl, neoheptyloxycarbonyl, octyloxycarbonyl, isooctyloxycarbonyl, or neooctyloxycarbonyl.

In the present invention, the aromatic carboxylate ester compounds may be one or more selected from a group consisting of ethyl benzoate, propyl benzoate, butyl benzoate, pentyl benzoate, hexyl benzoate, heptyl benzoate, octyl benzoate, nonyl benzoate, decyl benzoate, isobutyl benzoate, isopentyl benzoate, isohexyl benzoate, isoheptyl enzoate, isooctyl benzoate, isononyl benzoate, isodecyl benzoate, neopentyl benzoate, neohexyl benzoate, neoheptyl benzoate, neooctyl benzoate, neononyl benzoate, neodecyl benzoate, diethyl phthalate, dipropyl phthalate, diisobutyl phthalate, di-n-butyl phthalate, di-n-pentyl phthalate, diisopentyl phthalate, dineopentyl phthalate, dihexyl phthalate, diheptyl phthalate, dioctyl phthalate, dinonyl phthalate, diisohexyl phthalate, diisoheptyl phthalate, diisooctyl phthalate, diisononyl phthalate, diisobutyl <NUM>-methylphthalate, di-n-butyl <NUM>-methylphthalate, diisopentyl <NUM>-methylphthalate, di-n-pentyl <NUM>-methylphthalate, diisooctyl <NUM>-methylphthalate, di-n-octyl <NUM>-methylphthalate, diisobutyl <NUM>-ethylphthalate, di-n-butyl <NUM>-ethylphthalate, di-n-octyl <NUM>-ethylphthalate, diisobutyl <NUM>-ethylphthalate, di-n-pentyl <NUM>-ethylphthalate, diisopentyl <NUM>-ethylphthalate, diisobutyl <NUM>-propylphthalate, di-n-butyl <NUM>-propylphthalate, diisobutyl <NUM>-chlorophthalate, diisobutyl <NUM>-butylphthalate, di-n-butyl <NUM>-butylphthalate, di-n-butyl <NUM>-butylphthalate, diisobutyl <NUM>-propylphthalate, diisopentyl <NUM>-butylphthalate, di-n-butyl <NUM>-chlorophthalate, diisobutyl <NUM>-chlorophthalate, di-n-octyl <NUM>-chlorophthalate, di-n-butyl <NUM>-methoxyphthalate, and diisobutyl <NUM>-methoxyphthalate.

According to some embodiments of the present invention, the diol ester compound is as shown in Formula III,
<CHM>
wherein in Formula III, each of X and Y is independently selected from a group consisting of carbon, oxygen, sulfur, nitrogen, boron, and silicon; R<NUM> and R<NUM> may be identical to or different from each other, each independently selected from a group consisting of halogen, alkyl, cycloalkyl, aryl, alkenyl, fused aryl, and ester group; R<NUM>-R<NUM> may be identical to or different from each other, each independently selected from a group consisting of hydrogen, and substituted or unsubstituted alkyl, cycloalkyl, aryl, alkenyl, fused aryl, and ester group; RI-RIV may be identical to or different from each other, each independently selected from a group consisting of hydrogen, and substituted or unsubstituted alkyl, cycloalkyl, aryl, alkenyl, fused aryl, and ester group; R<NUM>-R<NUM> and RI-RIV each may optionally contain one or more heteroatoms as a substitute of a carbon or hydrogen atom or both, the heteroatom being oxygen, sulfur, nitrogen, boron, silicon, phosphorus, or a halogen atom; one or more of R<NUM>-R<NUM>, and RI to RIV may be bonded together to form a ring; and n is an integer ranging from <NUM> to <NUM>.

According to some preferred embodiments, the diol ester compound is as shown in Formula IIIa:
<CHM>
wherein in Formula IIIa, R<NUM>, R<NUM> and R<NUM>-R<NUM> may be identical to or different from each other, each independently selected from a group consisting of C<NUM>-C<NUM> alkyl, C<NUM>-C<NUM> cycloalkyl, C<NUM>-C<NUM> alkenyl, C<NUM>-C<NUM> arylalkyl, C<NUM>-C<NUM> alkylaryl, C<NUM>-C<NUM> fused aryl, and ester group; RI and RII may be identical to or different from each other, each independently selected from a group consisting of hydrogen, C<NUM>-C<NUM> alkyl, C<NUM>-C<NUM> cycloalkyl, C<NUM>-C<NUM> alkenyl, C<NUM>-C<NUM> arylalkyl, C<NUM>-C<NUM> alkylaryl, C<NUM>-C<NUM> fused aryl, and ester group; R<NUM>-R<NUM> and RI-RIV each may optionally contain one or more heteroatoms as a substitute of a carbon or hydrogen atom or both, the heteroatom being oxygen, sulfur, nitrogen, boron, silicon, phosphorus, or halogen atom; one or more of R<NUM>-R<NUM>, R<NUM>, and RII may be bonded together to form a ring; n is an integer ranging from <NUM> to <NUM>.

According to one embodiment, the diol ester compound is a diphenol ester compound, as shown in Formula IIIb,
<CHM>
wherein In formula IIIb, R<NUM> and R<NUM> may be identical to or different from each other, each independently selected from a group consisting of C<NUM>-C<NUM> alkyl, C<NUM>-C<NUM> cycloalkyl, C<NUM>-C<NUM> alkenyl, C<NUM>-C<NUM> arylalkyl, C<NUM>-C<NUM> alkylaryl, C<NUM>-C<NUM> fused aryl, and ester group; and Ar represents C<NUM>-C<NUM> aryl, C<NUM>-C<NUM> alkylaryl or C<NUM>-C<NUM> fused aryl.

Preferably, in Formula III, Formula IIIa and/or Formula IIIb, R<NUM> and R<NUM> are independently selected from a group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl, hydroxyalkyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, naphthyl, biphenyl, and a heterocycle-containing group. The heterocycle-containing group is preferably a pyrrole-containing group, a pyridine-containing group, a pyrimidine-containing group, or a quinoline-containing group.

Preferably, in Formula III and Formula IIIa, each of RI and RII is independently selected from a group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl, hydroxyalkyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, etc..

According to some preferred embodiments, in Formula III and/or Formula IIIa, RI and RII bond to form a ring, for example, a substituted or unsubstituted fluorine ring.

Preferably, the diol ester compound or the diphenol ester compound is one or more selected from a group consisting of <NUM>-isopropyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-butyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-cyclohexyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-benzyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-phenyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-(<NUM>-naphthyl)-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-isopropyl-<NUM>,<NUM>-diacetoxyl propane, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-isopropyl-<NUM>-isobutyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>,<NUM>-dipropionyloxypropane, <NUM>-isopropyl-<NUM>-butyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>-benzoyloxy-<NUM>-butyryloxypropane, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>-benzoyloxy-<NUM>-cinnamoyloxyl propane, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>-benzoyloxy-<NUM>-acetoxyl propane, <NUM>,<NUM>-dicyclopentyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>,<NUM>-dicyclohexyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>,<NUM>-dibutyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>,<NUM>-diisobutyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>,<NUM>-diisopropyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>,<NUM>-diethyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>-ethyl-<NUM>-butyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>,<NUM>-dibenzoyloxypentane, <NUM>-ethyl-<NUM>,<NUM>-dibenzoyloxypentane, <NUM>-methyl-<NUM>,<NUM>-dibenzoyloxypentane, <NUM>-propyl-<NUM>,<NUM>-dibenzoyloxypentane, <NUM>-isopropyl-<NUM>,<NUM>-dibenzoyloxypentane, <NUM>,<NUM>-di(<NUM>-propylbenzoyloxy)pentane, <NUM>,<NUM>-di(<NUM>-propylbenzoyloxy)pentane, <NUM>,<NUM>-di(<NUM>,<NUM>-dimethylbenzoyloxy)pentane, <NUM>,<NUM>-di(<NUM>,<NUM>-dichlorobenzoyloxy)pentane, <NUM>,<NUM>-di(<NUM>-chlorobenzoyloxy)pentane, <NUM>,<NUM>-di(<NUM>-isopropylbenzoyloxy)pentane, <NUM>,<NUM>-di(<NUM>-butylbenzoyloxy)pentane, <NUM>,<NUM>-di(<NUM>-isobutylbenzoyloxy)pentane, <NUM>,<NUM>-dibenzoyloxyheptane, <NUM>-ethyl-<NUM>,<NUM>-dibenzoyloxyheptane, <NUM>-propyl-<NUM>,<NUM>-dibenzoyloxyheptane, <NUM>-isopropyl-<NUM>,<NUM>-dibenzoyloxyheptane, <NUM>,<NUM>-di(<NUM>-propylbenzoyloxy)heptane, <NUM>,<NUM>-di(<NUM>-isopropylbenzoyloxy)heptane, <NUM>,<NUM>-di(<NUM>-isobutylbenzoyloxy)heptane, <NUM>,<NUM>-di(<NUM>-butylbenzoyloxy)heptane, <NUM>-benzoyloxy-<NUM>-(<NUM>-isobutylbenzoyloxy)pentane, <NUM>-benzoyloxy-<NUM>-(<NUM>-butylbenzoyloxy)pentane, <NUM>-benzoyloxy-<NUM>-(<NUM>-propylbenzoyloxy)pentane, <NUM>-benzoyloxy-<NUM>-(<NUM>-isobutylbenzoyloxy)heptane, <NUM>-benzoyloxy-<NUM>-(<NUM>-butylbenzoyloxy)heptane, <NUM>-benzoyloxy-<NUM>-(<NUM>-propylbenzoyloxy)heptane, <NUM>,<NUM>-dibenzoyloxymethylfluorene, <NUM>,<NUM>-dipropionyloxymethylfluorene, <NUM>,<NUM>-diisobutyryloxymethylfluorene, <NUM>,<NUM>-dibutyryloxymethylfluorene, <NUM>,<NUM>-dibenzoyloxymethyl-<NUM>-tert-butylfluorene, <NUM>,<NUM>-dibenzoyloxymethyl-<NUM>-propylfluorene, <NUM>,<NUM>-dibenzoyloxymethyl-<NUM>,<NUM>,<NUM>,<NUM>-tetrahydrofluorene, <NUM>,<NUM>-dibenzoyloxymethyl-<NUM>,<NUM>,<NUM>,<NUM>,<NUM>,<NUM>,<NUM>,<NUM>-octahydrofluorene, <NUM>,<NUM>-dibenzoyloxymethyl-<NUM>,<NUM>,<NUM>,<NUM>-diphenylpropylindene, <NUM>,<NUM>-dibenzoyloxymethyl-<NUM>,<NUM>-dichlorofluorene, <NUM>, <NUM>-dibenzoyloxymethyl-<NUM>,<NUM>-norbornadiene, <NUM>,<NUM>-dibenzoyloxybutane, <NUM>,<NUM>-diisopropyl-<NUM>,<NUM>-dibenzoyloxybutane, <NUM>,<NUM>-dibutyl-<NUM>,<NUM>-dibenzoyloxybutane, <NUM>,<NUM>-dibenzoyloxybenzene, <NUM>-ethyl-<NUM>,<NUM>-dibenzoyloxybenzene, <NUM>-butyl-<NUM>,<NUM>-dibenzoyloxybenzene, <NUM>,<NUM>-dibenzoyloxynaphthalene, <NUM>-ethyl-<NUM>,<NUM>-dibenzoyloxynaphthalene, <NUM>-propyl-<NUM>,<NUM>-dibenzoyloxynaphthalene, <NUM>-butyl-<NUM>,<NUM>-dibenzoyloxynaphthalene, <NUM>-butyl-<NUM>,<NUM>-dibenzoyloxynaphthalene, <NUM>-isobutyl-<NUM>,<NUM>-dibenzoyloxynaphthalene, <NUM>-isopropyl-<NUM>,<NUM>-dibenzoyloxynaphthalene, and <NUM>-propyl-<NUM>,<NUM>-dibenzoyloxynaphthalene.

According to some embodiments of the present invention, the diether compound is as shown in Formula IV,
<CHM>
wherein in Formula IV, R' and R" may be identical to or different from each other, each independently selected from a group consisting of C<NUM>-C<NUM> hydrocarbyl; n is an integer ranging from <NUM> to <NUM>; RI-RIV may be identical to or different from each other, each independently selected from a group consisting of hydrogen, alkoxy, substituted amino, halogen atoms, C<NUM>-C<NUM> hydrocarbyl, and C<NUM>-C<NUM> aryl, and two or more of RI-RIV may be bonded together to form a ring.

According to some preferred embodiments, in Formula IV, R' and R" are C<NUM>-C<NUM> alkyl, and are preferably methyl, ethyl, or isopropyl.

According to some preferred embodiments, in Formula IV, each of RI-RIV is C<NUM>-C<NUM> alkyl, and is preferably methyl, ethyl, isopropyl, n-butyl, isobutyl, n-propyl, n-pentyl, isopentyl, n-hexyl, or isohexyl.

In the present invention, the diether compound is preferably one or more selected from a group consisting of <NUM>-isopropyl-<NUM>,<NUM>-dimethoxypropane, <NUM>-butyl-<NUM>,<NUM> -dimethoxypropane, <NUM>-cyclohexyl-<NUM>,<NUM> -dimethoxypropane, <NUM>-benzyl-<NUM>,<NUM>-dimethoxypropane, <NUM>-phenyl-<NUM>,<NUM>-dimethoxypropane, <NUM>-(<NUM>-naphthyl)-<NUM>,<NUM>-dimethoxypropane, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>,<NUM>-dimethoxypropane, <NUM>-isopropyl-<NUM>-isobutyl-<NUM>,<NUM>-dimethoxypropane, <NUM>-isopropyl-<NUM>-butyl-<NUM>,<NUM>-dimethoxypropane, <NUM>,<NUM>-dicyclopentyl-<NUM>,<NUM>-dibenzoyloxypropane, <NUM>,<NUM>-dicyclohexyl-<NUM>,<NUM>-dimethoxypropane, <NUM>,<NUM>-dibutyl-<NUM>,<NUM>-dimethoxypropane, <NUM>,<NUM>-diisobutyl-<NUM>,<NUM>-dimethoxypropane, <NUM>,<NUM>-diisopropyl-<NUM>,<NUM>-dimethoxypropane, <NUM>,<NUM>-diethyl-<NUM>,<NUM>-dimethoxypropane, <NUM>-ethyl-<NUM>-butyl-<NUM>,<NUM>-dimethoxypropane, <NUM>,<NUM>-dimethoxypentane, <NUM>-ethyl-<NUM>,<NUM>-dimethoxypentane, <NUM>-methyl-<NUM>,<NUM>-dimethoxypentane, <NUM>-propyl-<NUM>,<NUM>-dimethoxypentane, <NUM>-isopropyl-<NUM>,<NUM>-dimethoxypentane, <NUM>,<NUM> -dimethoxyheptane, <NUM>-ethyl-<NUM>,<NUM>-dimethoxyheptane, <NUM>-propyl-<NUM>,<NUM>-dimethoxyheptane, <NUM>-isopropyl-<NUM>,<NUM>-dimethoxyheptane, <NUM>,<NUM>-dimethoxymethylfluorene, <NUM>, <NUM>-dimethoxymethyl-<NUM>-tert-butylfluorene, <NUM>,<NUM>-dimethoxymethyl-<NUM>-propylfluorene, <NUM>,<NUM>-dimethoxymethyl-<NUM>,<NUM>,<NUM>,<NUM>-tetrahydrofluorene, <NUM>,<NUM>-dimethoxymethyl-<NUM>,<NUM>,<NUM>,<NUM>, <NUM>, <NUM>, <NUM>, <NUM>-octahydrofluorene, <NUM>,<NUM>-dimethoxymethyl-<NUM>,<NUM>,<NUM>,<NUM>-diphenylpropylindene, <NUM>,<NUM>-dimethoxymethyl-<NUM>,<NUM>-dichlorofluorene, <NUM>, <NUM>-dimethoxymethyl-<NUM>,<NUM>-norbomadiene, <NUM>,<NUM>-dimethoxybutane, <NUM>,<NUM>-diisopropyl-<NUM>,<NUM>-dimethoxybutane, <NUM>,<NUM>-dibutyl-<NUM>,<NUM>-dimethoxybutane, <NUM>,<NUM>-dimethoxybenzene, <NUM>-ethyl-<NUM>,<NUM>-dimethoxybenzene, <NUM>-butyl-<NUM>,<NUM>-dimethoxybenzene, <NUM>,<NUM>-dimethoxynaphthalene, <NUM>-ethyl-<NUM>,<NUM>-dimethoxynaphthalene, <NUM>-propyl-<NUM>,<NUM>-dimethoxynaphthalene, <NUM>-butyl-<NUM>,<NUM>-dimethoxynaphthalene, <NUM>-butyl-<NUM>,<NUM>-dimethoxynaphthalene, <NUM>-isobutyl-<NUM>,<NUM>-dimethoxynaphthalene, <NUM>-isopropyl-<NUM>,<NUM>-dimethoxynaphthalene, and <NUM>-propyl-<NUM>,<NUM>-dimethoxynaphthalene.

The catalyst component provided according to the present invention can be prepared by the following optional method.

Method <NUM> may be described as follows. A magnesium halide is dissolved in a uniform solvent system comprising an organic epoxy compound, an organic phosphorus compound, and optionally an inert diluent. After a uniform solution is formed, the solution is mixed with a titanium tetrahalide or a derivative thereof, and solids are precipitated at the presence of a coprecipitation agent. An internal electron donor is loaded on the solids. A titanium tetrahalide or an inert diluent is used to further treat the solids to obtain a solid catalyst component comprising ingredients of titanium, magnesium, halogen, electron donor, etc..

In the present invention, the organic epoxy compound is preferably at least one selected from a group consisting of oxides of C<NUM>-C<NUM> aliphatic alkanes, olefins, dialkenes, halogenated aliphatic olefins, or dialkenes, glycidyl ethers, and inner ethers. Certain specific compounds are as follows: epoxybutane, epoxypropane, ethylene oxide, butadiene oxide, butadiene dioxide, epoxy chloropropane, epoxy chlorobutane, epoxy chloropentane, methyl glycidyl ether, diglycidyl ether, tetrahydrofuran, tetrahydropyran, and the like. The organic epoxy compound is more preferably at least one selected from a group consisting of ethylene oxide, epoxypropane, epoxy chloropropane, tetrahydrofuran, and tetrahydropyran.

Preferably, the organic phosphorus compound can be a hydrocarbyl ester or halogenated hydrocarbyl ester of orthophosphoric acid or phosphorous acid, specifically, such as, trimethyl orthophosphate, triethyl orthophosphate, tributyl orthophosphate, tripentyl orthophosphate, trihexyl orthophosphate, triheptyl orthophosphate, trioctyl orthophosphate, triphenyl orthophosphate, trimethyl phosphite, triethyl phosphite, tributyl phosphite, phenylmethyl phosphate. The more preferred are tributyl orthophosphate, and/or triethyl orthophosphate.

The inert diluent can be at least one selected from a group consisting of C<NUM>-C<NUM> alkane, cycloalkane and aromatic hydrocarbon, such as hexane, heptane, octane, decane, cyclohexane, beneze, toluene, xylene, or derivatives thereof, more preferably from hexane and toulene.

Method <NUM> may be described as follows. A magnesium halide or an organic magnesium compound, an alcohol compound, and a titanate compound or a titanium halide compound, are fully mixed in an inert solvent by stirring. The resultant mixture is heated and then cooled to obtain a spherical support, or is added an inert solvent to obtain a uniform alcohol adduct solution. The above support or the uniform alcohol adduct solution is mixed with titanium tetrahalide or a derivative thereof, kept at a low temperature for a period of time, and then heated and added an internal electron donor. After that, the resultant mixture is treated with titanium tetrahalide or an inert diulent, and finally subjected to filtration, washing, and drying to obtain a solid catalyst component comprising ingredients of titanium, magnesium, halogen, electron donor, etc..

The magnesium halide is preferably at least one selected from a group consisting of magnesium dichloride, magnesium dibromide, magnesium diiodide, methoxy magnesium chloride, ethoxy magnesium chloride, propoxy magnesium chloride, butoxy magnesium chloride, and the like, more preferably selected from magnesium dichloride and/or ethoxy magnesium chloride.

The organic magnesium compound is preferably at least one selected from a group consisting of dimethylmagnesium, diethylmagnesium, dipropylmagnesium, dibutylmagnesium, methylethylmagnesium, methylpropylmagnesium, methylbutylmagnesium, ethylpropylmagnesium, ethylbutylmagnesium, dimethoxymagnesium, diethoxy magnesium, dipropoxy magnesium, ethoxy ethylmagnesium, dibutoxy magnesium, diisobutoxy magnesium, and the like, more preferably selected from dibutylmagnesium, diethylmagnesium and diethoxy magnesium.

Method <NUM> may be described as follows. A magnesium halide is dissolved in a uniform solution comprising an organic epoxy compound, and an organic phosphorus compound. An inert diluent can also be added to the uniform solution. To the uniform solution is added an internal electron donor. The resultant solution is mixed with titanium tetrahalide or a derivative thereof, kept at a low temperature for a period of time, and then heated. After that, the resultant is treated with titanium tetrahalide or an inert diulent, and finally subjected to filtration, washing, and drying to obtain a solid catalyst component comprising ingredients of titanium, magnesium, halogen, electron donor, etc..

Method <NUM> may be described as follows. A magnesium halide is dissolved in a uniform solution comprising an organic epoxy compound, and an organic phosphorus compound. An inert diluent can also be added to the uniform solution. To the uniform solution is added an internal electron donor. The resultant solution is mixed with titanium tetrahalide or a derivative thereof, kept at a low temperature for a period of time, and then heated. After that, the resultant is treated with titanium tetrahalide or an inert diulent, then treated with an internal electron donor, and finally subjected to filtration, washing, and drying to obtain a solid catalyst component comprising ingredients of titanium, magnesium, halogen, electron donor, etc..

The present invention further provides a catalyst for olefin polymerization, in particular propene polymerization, comprising the following components: A) the catalyst component; B) an organoaluminium compound; and optionally C) an organosilicon compound.

In the catalyst for olefin polymerization, components A) and B) are essential components, and component C) is a non-essential component.

In the present invention, the organoaluminium compound may be at least one selected from a group consisting of trialkylaluminum, dialkyl aluminum chloride, alkyl aluminum chloride, and alkoxyaluminum, preferably at least one selected from tri-C<NUM>-C<NUM> alkyl aluminum chloride and di-C<NUM>-C<NUM>-alkyl aluminum chloride, such as trimethylaluminum, triethylaluminum, tri-n-propylaluminum, triisopropylaluminum, tri-n-butylaluminum, triisobutylaluminum, trioctylaluminum, diethylaluminium hydride, diisobutylaluminum hydride, diethylaluminum chloride, diisobutylaluminum chloride, ethyl aluminium sesquichloride, and dichloroethylaluminum. Triethylaluminum and/or triisobutylaluminum are more preferred.

In the present invention, the organosilicon compound is preferably as shown in the formula R<NUM>mSi(OR<NUM>)<NUM>-m, wherein <NUM>≤m≤<NUM>, R<NUM> and R<NUM> may be identical to or different from each other, each independently selected from a group consisting of alkyl, cycloalkyl, aryl, halogenated alkyl, and amino, R<NUM> also may be a halogen or hydrogen atom. Preferably, the organosilicon compound is at least one selected from the following organosilicon compounds: trimethylmethoxysilicane, trimethylethoxy silicane, trimethylphenoxysilicane, tri-n-propylmethoxysilicane, dimethyldimethoxysilicane, dipropyldimethoxysilicane, dibutyldimethoxysilicane, dipentyldimethoxysilicane, diisopropyldimethoxysilicane, diisobutyldimethoxysilicane, dimethyldiethoxy silicane, cyclohexylmethyltriethoxy silicane, cyclohexylmethyldimethoxysilicane, cyclohexyldimethylmethoxysilicane, hexyldiethylmethoxysilicane, dicyclopentyldimethoxysilicane, cyclopentyldiethylmethoxysilicane, cyclopentylisopropyldimethoxysilicane, cyclopentylisobutyldimethoxysilicane, <NUM>-methylcyclohexylmethyldimethoxysilicane, <NUM>-methylcyclohexylethyldimethoxysilicane, <NUM>-methylcyclohexylpropyldimethoxysilicane, di(<NUM>-methylcyclohexyl)dimethoxysilicane, <NUM>-methylcyclohexylpentyldimethoxysilicane, <NUM>-methylcyclohexylcyclopentyldimethoxysilicane, diphenyldimethoxysilicane, diphenyldiethoxy silicane, phenyltriethoxy silicane, phenyltrimethoxysilicane, ethenyltrimethoxysilicane, tetramethoxysilicane, tetraethoxy silicane, tetrapropoxy silicane, tetrabutoxy silicane and so on, preferably is selected from cyclohexylmethyldimethoxysilicane, dicyclopentyldimethoxysilicane and/or diisopropyldimethoxysilicane. These organosilicon compounds may be used alone, or can be used as a combination of two or more.

In the present invention, a molar ratio of components A) to B) to C) is preferably in a range of <NUM>:(<NUM>-<NUM>):(<NUM>-<NUM>), and more preferably in a range of <NUM>: (<NUM>-<NUM>): (<NUM>-<NUM>).

In the present invention, further provided is use of the catalyst component in the field of olefin polymerization, especially in the field of propene polymerization. The present invention also provides use of the catalyst in olefin polymerization especially propene polymerization.

The present invention has the following beneficial effects. When the catalyst according to the present invention is used in olefin polymerization, the catalyst has a high activity and a long term activity, and the obtained polymer has an adjustable isotactic index and a relatively wide molecular weight distribution.

The implementing solutions of the present invention will be explained in detail below in conjunction with the embodiments. Those skilled persons in the art shall appreciate that the following embodiments are merely for illustrating the present invention, and shall not be construed as limiting the scope of the present invention. Where specific conditions in an embodiment are not specified, normal conditions or conditions suggested by manufacturers are adopted. Where manufacturers of reagents or instruments are not specified, the reagents or instruments shall be normal products available by purchase from the market.

Synthesis of <NUM>-(phenylimino)ethyl-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of glacial acetic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of aniline. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>H-NMR (δ, ppm, TMS, CDCl<NUM>): <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>); mass spectrum, FD-MS: <NUM>.

Synthesis of <NUM>-(<NUM>-chlorophenylimino)ethyl-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of glacial acetic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of aniline. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>H-NMR (δ, ppm, TMS, CDCl<NUM>): <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>); mass spectrum, FD-MS: <NUM>.

Synthesis of <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of glacial acetic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of <NUM>,<NUM>-diisopropyl aniline. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>H-NMR (δ, ppm, TMS, CDCl<NUM>): <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, CH), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, m, CH<NUM>), <NUM>-<NUM> (<NUM>, m, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>); mass spectrum, FD-MS: <NUM>.

Synthesis of <NUM>-(<NUM>,<NUM>-dimethylphenylimino)ethyl-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of p-methylbenzenesulfonic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of <NUM>,<NUM>-dimethyl aniline. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>H-NMR (δ, ppm, TMS, CDCl<NUM>): <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM>(<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>) ; mass spectrum, FD-MS: <NUM>.

Synthesis of <NUM>-(<NUM>-quinolylimino)-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of p-methylbenzenesulfonic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of <NUM>,<NUM>, <NUM>-trimethyl aniline. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>H-NMR(δ, ppm, TMS, CDCl<NUM>): <NUM>-<NUM>(<NUM>, m, ArH), <NUM>-<NUM>(<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>); mass spectrum, FD-MS:<NUM>.

Synthesis of <NUM>-(<NUM>-naphthylimino)ethyl-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of glacial acetic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of <NUM>-naphthylamine. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>H-NMR(δ, ppm, TMS, CDCl<NUM>): <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, s, CH<NUM>) , <NUM>-<NUM> (<NUM>, s, CH<NUM>); mass spectrum, FD-MS: <NUM>.

Synthesis of <NUM>-(benzylimino)ethyl-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of glacial acetic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of benzylamine. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>H-NMR(δ, ppm, TMS, CDCl<NUM>): <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>); mass spectrum, FD-MS: <NUM>.

Synthesis of <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine: <NUM> of <NUM>,<NUM>-diacetylpyridine, <NUM> of isopropanol, and <NUM> of p-methylbenzenesulfonic acid were placed into a <NUM> three-neck flask replaced by nitrogen gas, and were mixed uniformly by stirring at room temperature, followed by, at room temperature, a slow dropwise addition of <NUM> of isopropanol solution containing <NUM> of <NUM>-amino quinoline. The resulting mixture was stirred and reacted for <NUM> hours, and then heated to perform a reflux reaction for <NUM> hours. The reaction solution was concentrated under reduced pressure, and purified by chromatographic separation, to obtain a product of <NUM> (the yield was <NUM>%). <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, m, ArH), <NUM>-<NUM> (<NUM>, s, CH<NUM>), <NUM>-<NUM> (<NUM>, s, CH<NUM>); mass spectrum, FD-MS:<NUM>.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) was added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was stirred for <NUM> minutes, heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was washed twice to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: The present example was the same as Example 9A, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-chlorophenylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9A, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9A, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-naphthylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, <NUM>,<NUM>-dibenzoyloxypentane (<NUM> mol) and <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was stirred for <NUM> minutes, heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was washed twice to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: The present example was the same as Example 13A, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(p-chlorophenylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 13A, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 13A, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-naphthylimino )ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 13A, except that <NUM>,<NUM>-dibenzoyloxypentane was substituted with <NUM>,<NUM>-bis(methoxymethyl)fluorine.

Preparation of a catalyst component: The present example was the same as Example 13A, except that <NUM>,<NUM>-dibenzoyloxypentane was substituted with DNBP.

Preparation of a catalyst component: <NUM> of TiCl<NUM> was put into a reactor replaced by high-purity nitrogen, and cooled to -<NUM>, followed by an addition of <NUM> of alcohol adduct of magnesium chloride (see patent <CIT>). The resulting mixture was heated with stirring in stages. When the mixture was heated to <NUM>, <NUM>,<NUM>-dibenzoyloxypentane (<NUM> mol) and <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-2acetylpyridine (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hours and then filtered, followed by an addition of <NUM> of TiCl<NUM>. The resulting mixture was heated to <NUM> and treated three times. After that, <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: <NUM> of TiCl<NUM> was put into a reactor replaced by high-purity nitrogen, and cooled to -<NUM>, followed by an addition of <NUM> of magnesium ethylate. The resulting mixture was heated with stirring in stages. When the mixture was heated to <NUM>, <NUM>,<NUM>-dibenzoyloxypentane (<NUM> mol) and <NUM>-(<NUM>-naphthylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hours and then filtered, followed by an addition of <NUM> of TiCl<NUM>. The resulting mixture was heated to <NUM> and treated three times. After that, <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Polymerization reaction of propene: <NUM> of AlEt<NUM> and <NUM> of cyclohexyl methyl dimethoxy silane (CHMMS) enabling Al/Si (mol)=<NUM> were placed into a <NUM> stainless reactor replaced fully by propene gas, followed by an addition of <NUM> of the solid component prepared in Example 9A and <NUM> NL of hydrogen gas, and an introduction of <NUM> of liquid propene. The resulting mixture was heated to <NUM> and maintained at <NUM> for <NUM> hour, followed by cooling, pressure releasing, and discharging, to obtain a PP resin. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 10A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 11A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 12A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 13A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 14A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 15A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 16A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 17A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18A, except that the catalyst component was substituted with the catalyst component prepared in Example 18A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 19A, except that the catalyst component was substituted with the catalyst component prepared in Example 19A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21A, except that the catalyst component was substituted with the catalyst component prepared in Example 20A. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 25A, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 26A, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 27A, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 25A, except that the adding amount of hydrogen was changed to <NUM> NL. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 29A, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 29A, except that the adding amount of hydrogen was changed to <NUM> NL. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 30A, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, DNBP (<NUM> mol) was added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was stirred for <NUM> minutes. Another <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Polymerization reaction of propene: <NUM> of AlEt<NUM> and <NUM> of cyclohexyl methyl dimethoxy silane (CHMMS) enabling Al/Si (mol)=<NUM> were placed into a <NUM> stainless reactor replaced fully by propene gas, followed by an addition of <NUM> of the above prepared catalyst component and <NUM> NL of hydrogen gas, and an introduction of <NUM> of liquid propene. The resulting mixture was heated to <NUM> and maintained at <NUM> for <NUM> hour, followed by cooling, pressure releasing, and discharging, to obtain a PP resin. Results were shown in Table <NUM>.

The present example was the same as Comparative Example 1A, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

The comparison between the above examples and comparative examples shows that, when the catalyst of the present invention is used for polymerization reaction of propene, the catalyst has a high activity and a long term activity, and the prepared polymer has an adjustable isotactic index and a relatively wide molecular weight distribution.

Preparation of a catalyst component: The present example was the same as Example 9B, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>,<NUM>-dimethylphenylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9B, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>,<NUM>, <NUM>-trimethylphenylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9B, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-quinolylimino )ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9B, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-naphthylimino )ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9B, except that <NUM>,<NUM>-dibenzoyloxypentane was substituted with <NUM>-ethyl-<NUM>,<NUM>-dibenzoyloxypentane.

Preparation of a catalyst component: The present example was the same as Example 9B, except that <NUM>,<NUM>-dibenzoyloxypentane was substituted with <NUM>,<NUM>-di(<NUM>-propylbenzoyloxy)pentane.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, <NUM>,<NUM>-dibenzoyloxypentane (<NUM> mol) was added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was stirred for <NUM> minutes, heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was washed twice to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: <NUM> of TiCl<NUM> was put into a reactor fully replaced by high-purity nitrogen, and cooled to -<NUM>, followed by an addition of <NUM> of alcohol adduct of magnesium chloride (see patent <CIT>). The resulting mixture was heated with stirring in stages. When the mixture was heated to <NUM>, <NUM>,<NUM>-dibenzoyloxypentane (<NUM> mol) and <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hours and then filtered, followed by an addition of <NUM> of TiCl<NUM>. The resulting mixture was heated to <NUM> and treated three times. After that, <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Polymerization reaction of propene: <NUM> of AlEt<NUM> and <NUM> of cyclohexyl methyl dimethoxy silane (CHMMS) enabling Al/Si (mol)=<NUM> were placed into a <NUM> stainless reactor replaced fully by propene gas, followed by an addition of <NUM> of the solid component prepared in Example 9B and <NUM> NL of hydrogen gas, and an introduction of <NUM> of liquid propene. The resulting mixture was heated to <NUM> and maintained at <NUM> for <NUM> hour, followed by cooling, pressure releasing, and discharging, to obtain a PP resin. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 10B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 11B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 12B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 13B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 14B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 15B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 16B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the catalyst component was substituted with the catalyst component prepared in Example 17B. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 20B, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 18B, except that the adding amount of hydrogen was changed to <NUM> NL. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 20B, except that the adding amount of hydrogen was changed to <NUM> NL. Results were shown in Table <NUM>.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, <NUM>,<NUM>-dibenzoyloxypentane (<NUM> mol) was added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was stirred for <NUM> minutes. Another <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Polymerization reaction of propene: <NUM> of AlEt<NUM> and <NUM> of cyclohexyl methyl dimethoxy silane (CHMMS) enabling Al/Si (mol)=<NUM> were placed into a <NUM> stainless reactor replaced fully by propene gas, followed by an addition of <NUM> of the solid component prepared in Comparative Example <NUM> and <NUM> NL of hydrogen gas, and an introduction of <NUM> of liquid propene. The resulting mixture was heated to <NUM> and maintained at <NUM> for <NUM> hour, followed by cooling, pressure releasing, and discharging, to obtain a PP resin. Results were shown in Table <NUM>.

The comparison between the above Examples 18B-32B and Comparative Examples 1B-2B shows that, when a catalyst that uses an imine compound with a ketone group shown in Formula I and a diol ester compound shown in Formula II as a composite internal electron donor is used for polymerization reaction of propene, the catalyst has significantly improved hydrogen response and a high long-term activity, and the polymer prepared has a relatively wide molecular weight distribution.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>,<NUM>-dimethoxy propane (<NUM> mol) and the <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine prepared in Example <NUM> (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was stirred for <NUM> minutes, heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was washed twice to obtain a catalyst solid component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: The present example was the same as Example 9C, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with the <NUM>-(<NUM>,<NUM>- dimethylphenylimino)ethyl-<NUM>-acetylpyridine prepared in Example <NUM>.

Preparation of a catalyst component: The present example was the same as Example 9C, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>,<NUM>, <NUM>- trimethylphenylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9C, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine prepared in Example <NUM>.

Preparation of a catalyst component: The present example was the same as Example 9C, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-naphthylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9C, except that <NUM>-isopropyl-<NUM>-isopentyl-<NUM>,<NUM>-dimethoxy propane was substituted with <NUM>,<NUM>'-bis(methoxymethyl)fluorene.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, <NUM>,<NUM>'-bis(methoxymethyl)fluorene (<NUM> mol) was added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was stirred for <NUM> minutes, heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane and the <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine prepared in Example <NUM> (<NUM> mol) were added, and the resulting mixture was stirred for <NUM> minutes, followed by an addition of another <NUM> of hexane. The resulting mixture was washed twice to obtain a catalyst solid component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: <NUM> of TiCl<NUM> was put into a reactor fully replaced by high-purity nitrogen, and cooled to -<NUM>, followed by an addition of <NUM> of alcohol adduct of magnesium chloride (see patent <CIT>). The resulting mixture was heated with stirring in stages. When the mixture was heated to <NUM>, <NUM>,<NUM>'-bis(methoxymethyl)fluorene (<NUM> mol) and the <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) prepared in Example <NUM> were added. The resulting mixture was kept at <NUM> for <NUM> hours and then filtered, followed by an addition of <NUM> of TiCl<NUM>. The resulting mixture was heated to <NUM> and treated three times. After that, <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst solid component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Polymerization reaction of propene: <NUM> of AlEt<NUM> and <NUM> of cyclohexyl methyl dimethoxy silane (CHMMS) enabling Al/Si (mol)=<NUM> were placed into a <NUM> stainless reactor replaced fully by propene gas, followed by an addition of <NUM> of the solid component prepared in Example 9C and <NUM> NL of hydrogen gas, and an introduction of <NUM> of liquid propene. The resulting mixture was heated to <NUM> and maintained at <NUM> for <NUM> hour, followed by cooling, pressure releasing, and discharging, to obtain a PP resin. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the solid component was substituted with the solid component prepared in Example 10C. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the solid component was substituted with the solid component prepared in Example 11C. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the solid component was substituted with the solid component prepared in Example 12C. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the solid component was substituted with the solid component prepared in Example 13C. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the solid component was substituted with the solid component prepared in Example 14C. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the solid component was substituted with the solid component prepared in Example 15C. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the solid component was substituted with the solid component prepared in Example 16C. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17C, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 23C, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 23C, except that the adding amount of hydrogen was changed to <NUM> NL. Results were shown in Table <NUM>.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, <NUM>-isopropyl-<NUM>-isopentyl-<NUM>,<NUM>-dimethoxy propane (<NUM> mol) was added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was stirred for <NUM> minutes. Another <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Polymerization reaction of propene: <NUM> of AlEt<NUM> and <NUM> of cyclohexyl methyl dimethoxy silane (CHMMS) enabling Al/Si (mol)=<NUM> were placed into a <NUM> stainless reactor replaced fully by propene gas, followed by an addition of <NUM> of the solid component prepared in Comparative Example 1C and <NUM> NL of hydrogen gas, and an introduction of <NUM> of liquid propene. The resulting mixture was heated to <NUM> and maintained at <NUM> for <NUM> hours, followed by cooling, pressure releasing, and discharging, to obtain a PP resin. Results were shown in Table <NUM>.

The comparison between the above Examples 17C-29C and Comparative Examples 1C-2C shows that, when a catalyst that uses an imine compound with a ketone group shown in Formula I and a diether compound shown in Formula IV as a composite internal electron donor is used for polymerization reaction of propene, the catalyst has a high activity and a long term activity, and the polymer prepared has a high isotactic index and a relatively wide molecular weight distribution.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, DNBP (<NUM> mol) and <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was stirred for <NUM> minutes, heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane was added, and the resulting mixture was washed twice to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: The present example was the same as Example 9D, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>,<NUM>-dimethylphenylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9D, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>,<NUM>, <NUM>- trimethylphenylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9D, except that <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine was substituted with <NUM>-(<NUM>-quinolylimino)ethyl-<NUM>-acetylpyridine.

Preparation of a catalyst component: The present example was the same as Example 9D, except that DNBP was substituted with DIBP.

Preparation of a catalyst component: <NUM> of magnesium chloride, <NUM> of methylbenzene, <NUM> of epoxy chloropropane, and <NUM> of tributyl phosphate (TBP) were put one by one into a reactor fully replaced by high-purity nitrogen gas, and were heated with stirring to <NUM> and kept at <NUM> for <NUM> hours. After the solid was completely dissolved, <NUM> of phthalic anhydride was added. The resulting solution was still kept at <NUM> for <NUM> hour, and then cooled to a temperature below -<NUM>, followed by a dropwise addition of TiCl<NUM> within <NUM> hour. The resulting solution was slowly heated to <NUM> to gradually precipitate a solid. Then, DNBP (<NUM> mol) was added. The resulting mixture was kept at <NUM> for <NUM> hour, and was filtered thermally, followed by an addition of <NUM> of methylbenzene. The resulting mixture was washed twice to obtain a solid. Then, <NUM> of methylbenzene was added, and the resulting mixture was stirred for <NUM> minutes, heated to <NUM>, and washed three times with each time lasting for <NUM> minutes. After that, <NUM> of hexane and <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) were added, and the resulting mixture was stirred for <NUM> minutes, followed by an addition of another <NUM> of hexane. The resulting mixture was washed twice to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: <NUM> of TiCl<NUM> was put into a reactor fully replaced by high-purity nitrogen, and cooled to -<NUM>, followed by an addition of <NUM> of alcohol adduct of magnesium chloride (see patent <CIT>). The resulting mixture was heated with stirring in stages. When the mixture was heated to <NUM>, DNBP (<NUM> mol) and <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hours and then filtered, followed by an addition of <NUM> of TiCl<NUM>. The resulting mixture was heated to <NUM> and treated three times. After that, <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Preparation of a catalyst component: <NUM> of TiCl<NUM> was put into a reactor fully replaced by high-purity nitrogen, and cooled to -<NUM>, followed by an addition of <NUM> of magnesium ethylate. The resulting mixture was heated with stirring in stages. When the mixture was heated to <NUM>, DNBP (<NUM> mol) and <NUM>-(<NUM>,<NUM>-diisopropylphenylimino)ethyl-<NUM>-acetylpyridine (<NUM> mol) were added. The resulting mixture was kept at <NUM> for <NUM> hours and then filtered, followed by an addition of <NUM> of TiCl<NUM>. The resulting mixture was heated to <NUM> and treated three times. After that, <NUM> of hexane was added, and the resulting mixture was washed three times to obtain a catalyst component of <NUM>, containing <NUM>% Ti, <NUM>% Mg, and <NUM>% Cl.

Polymerization reaction of propene: <NUM> of AlEt<NUM> and <NUM> of cyclohexyl methyl dimethoxy silane (CHMMS) enabling Al/Si (mol)=<NUM> were placed into a <NUM> stainless reactor replaced fully by propene gas, followed by an addition of <NUM> of the solid component prepared in Example 9D and <NUM> NL of hydrogen gas, and an introduction of <NUM> of liquid propene. The resulting mixture was heated to <NUM> and maintained at <NUM> for <NUM> hour, followed by cooling, pressure releasing, and discharging, to obtain a PP resin. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the catalyst component was substituted with the catalyst component prepared in Example 10D. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the catalyst component was substituted with the catalyst component prepared in Example 11D. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the catalyst component was substituted with the catalyst component prepared in Example 12D. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the catalyst component was substituted with the catalyst component prepared in Example 13D. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the catalyst component was substituted with the catalyst component prepared in Example 14D. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the catalyst component was substituted with the catalyst component prepared in Example 15D. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the catalyst component was substituted with the catalyst component prepared in Example 16D. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 21D, except that the time of the polymerization reaction was extended to <NUM> hours. Results were shown in Table <NUM>.

Polymerization reaction of propene: The present example was the same as Example 17D, except that the adding amount of hydrogen was changed to <NUM> NL. Results were shown in Table <NUM>.

The present comparative example was the same as Comparative Example 1D, except that the time of the polymerization reaction time was extended to <NUM> hours. Results were shown in Table <NUM>.

Claim 1:
A catalyst component for olefin polymerization, comprising magnesium, titanium, halogen and an internal electron donor, wherein the internal electron donor comprises an imine compound with a ketone group as shown in Formula I,
<CHM>
wherein in Formula I, R is selected from a group consisting of hydroxyl, C<NUM>-C<NUM> alkyl with or without a halogen atom substitute, C<NUM>-C<NUM> alkenyl with or without a halogen atom substitute group, and C<NUM>-C<NUM> aryl with or without a halogen atom substitute group; R<NUM>-R<NUM> may be identical to or different from each other, each independently selected from a group consisting of hydrogen, C<NUM>-C<NUM> alkyl, C<NUM>-C<NUM> alkenyl, C<NUM>-C<NUM> arylalkyl, C<NUM>-C<NUM> alkylaryl, C<NUM>-C<NUM> fused aryl, halogen atoms, hydroxyl and C<NUM>-C<NUM> alkoxy; X is nitrogen atom or CH.