Process for preparing solid titanium catalyst component, olefin polymerization catalyst and process for olefin polymerization

Abstract From the Canadian patent

Disclosed is a process for preparing a solid titanium catalyst component, comprising contacting (a) a liquid magnesium compound, (b) a liquid titanium compound (c) an, electron donor and (d) a solid divalent metallic halide. In this process the solid divalent metallic halide is, preferably one having a crystalline structure of cadmium chloride type. The contact of the component (a) with the component (b) is preferably carried out in the presence of the solid divalent metallic halide (d). According to this process, there can be obtained a solid titanium catalyst component capable of polymerizing olefins with an extremely high activity and capable of producing polyolefins of high …