SOLID TITANIUM CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, PROCESS FOR PREPARING THE SAME, CATALYST FOR OLEFIN POLYMERIZATION AND PROCESS FOROLEFIN POLYMZRIZATION

摘要

Solid titanium catalyst components containing (a) magnesium, (b) titanium, (c) halogens, (d) polyethers, (e) hydrocarbons and (f) electron donors other than said polyethers (d) as essential components Is provided. In addition, a magnesium halide compound is brought into contact with a compound selected from the group consisting of alcohols, ethers and esters in a hydrocarbon solvent to obtain a magnesium compound solution, the magnesium compound solution is brought into contact with a polyether, and the resulting solution is brought into contact with a liquid titanium compound. Provided is a method for producing a solid titanium catalyst component for olefin polymerization that performs the steps.;In addition, an olefin polymerization catalyst containing the solid titanium catalyst component, the organoaluminum compound catalyst component and the electron donor, and an olefin polymerization method using the olefin polymerization catalyst are provided.;By using the olefin polymerization catalyst, an olefin (co) polymer having a uniform particle size, low molecular weight, high density and high solid regularity can be obtained with excellent polymerization activity.