Method for preparing an improved catalyst support

Details Method for preparing an improved catalyst support Method for preparing an improved catalyst support

C - Chemistry, Metallurgy

08

F

252/40

C08F 4/02 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1202946

ABSTRACT OF THE DISCLOSURE Disclosed is a transition metal component of a Ziegler- Natta catalyst which is composed of a titanium halide deposited on an essentially anhydrous magnesium chloride support. An improved support is prepared by contacting a hydrocarbon solution of magnesium alkanoate and a hydrocarbon solution of alkylaluminum dichloride in a liquid hydrocarbon reaction medium containing alkylaluminum dichloride and alkylaluminum alkanoate chloride. After workup and treatment with the titanium halide, the transi- tion metal component is used in the Ziegler-Natta catalysis polymerization of 1-olefins. The resulting polyolefins have a narrow particle size distribution and a high bulk density.

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