Process for producing olefin polymers

Claim 1

A process for the preparation of a solid catalyst component for olefin polymerization, which comprises (1) (a) reacting an organomagnesium compound represented by the formula, R 1 MgX and/or (R 1 ) 2 Mg, wherein R 1 is an alkyl group having 1 to 20 carbon atoms, aryl or alkenyl group and X is a halogen atom, with an aluminum halogenide and/or silicon halogenide in an ethereal solvent at a temperature of -20° to 200° C., the molar ratio of said organomagnesium compound to said halogenide being 0.1:1 to 10:1, or (1) (b) reacting an organomagnesium compound represented by the formula R 1 MgX and/or (R 1 ) 2 Mg, wherein R 1 and X are as defined above, with at least one hydroxide selected from the group consisting of magnesium hydroxide, calcium hydroxide, zinc hydroxide, and aluminum hydroxide in an ethereal solvent at a temperature of -20° to 200° C., the molar ratio of said organomagnesium compound to said hydroxide compound being 1:0.01 to 1:10, and reacting a reaction mixture thus obtained with an aluminum halogenide and/or silicon halogenide being in an ethereal solvent at a temperature of -20° to 200° C., the molar ratio of the organomagnesium compound to said halogenide being 0.1:1 to 10:1, (2) filtering and drying the resulting reaction products thereby to obtain a solid carrier containing the adsorbed ether compound, (3) supporting a titanium compound represented by the formula, Ti(OR 5 ) 4-p X p , wherein R 5 is an alkyl group having 1 to 20 carbon atoms, cycloalkyl or phenyl group, X is a halogen atom and p is a number satisfying the formula, 0≦p≦4, and/or a compound selected from the group consisting of vanadium tetrachloride, and oxyvanadium trichloride on said carrier at a temperature of -20° to 150° C., wherein the amount of said titanium and/or vanadium compound supported on said carrier is 0.01 to 30% by weight in terms of titanium and/or vanadium based on the total amount of the supported compound and the solid carrier.