METHOD OF PREPARING SOLID CATALYST COMPONENT, SOLID CATALYST COMPONENT, CATALYST FOR STEREOSPECIFIC POLYMERIZATION, AND METHOD OF STEREOSPECIFIC POLYMERIZATION OF PROPYLENE Russian patent published in 1997 - IPC

FIELD: catalyst production. SUBSTANCE: solid component of catalyst on carrier for stereospecific polymerization of propylene and other alfa-olefines is prepared by way of interaction of non-activated silica in series with dialkylmagnesium or alkylmagnesium halide, halogenating agent selected from the group of silicon, tin, and antimony halides, and finally with a Lewis base. Prepared catalyst consists of a solid catalyst component, trialkylaluminium or alkylaluminium halide derivative, and an electronodonor compound capable to form a complex compound with previous catalyst component. EFFECT: enhanced catalyst activity. 9 cl