Preparation of modified and activated chromocene catalysts...

Details Preparation of modified and activated chromocene catalysts... Preparation of modified and activated chromocene catalysts...

C - Chemistry, Metallurgy

08

F

402/631, 252/52.

C08F 4/76 (2006.01) C08F 10/02 (2006.01)

Patent

CA 1098106

ABSTRACT OF THE DISCLOSURE Ethylene polymerization catalysts are prepared by depositing a chromocene compound on a support with a titanium compound find activating the final blend at 300°C. to about 1005°C. A fluoriding agent can be optionally added where a narrower molecular weight dis- tribution of the polyethylene to be obtained is desired. Catalysts with good reproducibility, when prepared by this method, show particular utility in production of polyethylene by a fluid bed process.

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