Patent ID: 8293672

Claim:
A process for producing a solid catalyst component for olefin polymerization, the process comprising: (I) reacting a component (a2) comprising a support material comprising at least one oxide of an element selected from the group consisting of a Group II, a Group III, and a Group IV element, that supports an alkoxy-group-containing magnesium compound or an alcohol complex of a halogen-containing magnesium compound with a halogen-containing silicon compound (b2-1), to obtain an reaction mixture, wherein a molar ratio of the halogen of the silicon compound (halogen of b2-1) to magnesium in component (a2), ((halogen of b2-1)/Mg), is at least 0.20; (II) reacting the reaction mixture with an electron-donating compound (c2) and a halogen-containing titanium compound (d2) at a temperature in a range from 120° C. to 150° C., to obtain an first reaction product; (III) washing the first reaction product with an inert solvent, to obtain a washed reaction product; then, (IV) reacting the washed reaction product with the compound (d2) at a temperature in a range from 120° C. to 150° C., to obtain a second reaction product; and (V) washing the second reaction product with an inert solvent at a temperature in a range from 100° C. to 150° C., to obtain a solid catalyst component.