| abstract |
PCT No. PCT/JP96/02921 Sec. 371 Date Apr. 9, 1998 Sec. 102(e) Date Apr. 9, 1998 PCT Filed Oct. 8, 1996 PCT Pub. No. WO97/13793 PCT Pub. Date Apr. 17, 1997The present invention intends to provide a process for preparation of a solid titanium catalyst component for an olefin polymerization excellent in polymerization activity per unit catalyst, and a process for preparation of a polyolefin using a catalyst containing the catalyst component. The process according to the present invention is characterized by comprising the steps of contacting (A) a magnesium compound with (B) a solution titanium compound to obtain a solid titanium catalyst component composed of titanium, magnesium and a halogen as the essential components, wherein a titanium compound mixture liquid composed of 88 to 99% by weight of a titanium compound and 1 to 12% by weight of hydrocarbon containing halogen-containing hydrocarbon is used as (B) the solution titanium compound. |