Process for preparing an .alpha.-olefin polymerization catalyst

Details Process for preparing an .alpha.-olefin polymerization catalyst Process for preparing an .alpha.-olefin polymerization catalyst

C - Chemistry, Metallurgy

08

F

402/418, 402/548

C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1253844

A PROCESS FOR PREPARING AN ALPHA-OLEFIN POLYMERIZATION CATALYST ABSTRACT OF THE DISCLOSURE Alpha-olefin polymerization catalysts are prepared by heating a solid porous carrier having reactive OH groups in the atmosphere of an oxygen-containing gas and then treating the carrier firstly with an organomagnesium composition and then with a transition metal compound, preferably a titanium compound. The resulting catalysts exhibit higher productivity and produce ethylene polymers or ethylene/C3-C10 copolymers having higher bulk density than similar catalysts prepared with the carriers heated in an atmosphere of nitrogen.

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