Patent GB-1105217-A (GB)
Title: Process for preparing basic metal phenates
IPC: C10M159/22
Filed: 1966-08-17
Abstract: In a process for preparing a basic metal phenate comprising the carbonation of a reaction mixture comprising a polyolefin-substituted phenolic compound and a calcium or strontium base, the carbonation is carried out in the presence of as promoter carboxylic acids having up to about 100 carbon atoms and alkali, alkaline earth metals, zinc and lead salts thereof. The term phenolic compounds includes phenols and phenol sulphides and mixtures of at least 0.5 equivalent of the phenols and hydrocarbon substituted succinic compounds having at least 6 carbon atoms in the hydrocarbon substitutent.  The polyolefin substituent of the polyolefin-substituted phenols and phenol sulphides may contain up to about 7000 aliphatic carbon atoms whereas the hydrocarbon substituent of the hydrocarbon-substituted succinic compounds may contain from about 1 to 7000 aliphatic carbon atoms although substituents containing at least about 6 carbon atoms are preferred, and mixtures of at least 0.5 equivalent of the phenols and hydrocarbon-substituted succinic compounds.  An alcohol containing up to about 8 carbon atoms may be used to help solubilize the metal compound, to help fluidize the process mixture and to act as a supplemental promoter in the carbonation step. Many examples are given.ALSO:Lubricating and fuel compositions comprise a major proportion of a mineral, vegetable or synthetic lubricating oil or gasoline or fuel oil and a minor proportion of an overbased metal phenates (see Division C2).  Synthetic oils specified are didodecyl adipate and di-2-ethylhexyl sebacate.  Additional ingredients include acylated amines obtained from the reaction of polyisobutene-substituted succinic anhydride with a polyethylene polyamine which may be further reacted with basic acid, basic calcium petroleum sulphonate, calcium salt prepared by reacting a polyisobutene-substituted phenol with calcium hydroxide and paraformaldehyde, zinc salt of phosphorodithioic acid, poly-(alkylsiloxanes), neutral barium salt of an acid obtained by steam treating the reaction product of polyisobutene with phosphorus pentasulphide, neutral and basic alkali and alkaline earth metal salts of sulphonic acids, C12+carboxylic acids and phosphorus acids having a P-C band, chlorinated aliphatic hydrocarbons, sulphides, phosphosulphurized hydrocarbons, di- and tri-hydrocarbon phosphites, metal thiocarbamates, polyolefins, polyalkyl acrylates and alkylphenol / formaldehyde / amine condensate.ALSO:In a process for preparing a basic metal phenate comprising the carbonation of a reaction mixture comprising a phenolic compound and a calcium or strontium base, the carbonation is carried out in the presence of as promoter carboxylic acids having up to about 100 carbon atoms and alkali, alkaline earth metal, zinc and lead salts thereof.  The term phenolic compounds includes phenols and hydrocarbon-substituted phenols and hydrocarbon-substituted phenol sulfides and mixtures of at least 0.5 equivalent of the phenols and hydrocarbon substituted succinic compounds having at least 6 carbon atoms in the hydrocarbon substituent. The hydrocarbon substituent of the hydrocarbon-substituted phenols and phenol sulfides contain at least about 6 carbon atoms and may contain up to about 7000 aliphatic carbon atoms whereas the hydrocarbon substituent of the hydrocarbon - substituted succinic compounds may contain from about 1 to 7000 aliphatic carbon atoms although substituents containing at least about 6 carbon atoms are preferred, and mixtures of at least 0.5 equivalent of the phenols and hydrocarbon-substituted succinic compounds.  An alcohol containing up to about 8 carbon atoms may be used to help solubilize the metal compound, to help fluidize the process mixture and to act as a supplemental promoter in the carbonation step.  Many examples are given.