Vanadium-containing polymerization catalyst

Details Vanadium-containing polymerization catalyst Vanadium-containing polymerization catalyst

1991-06-04

1993-04-20

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502114, 502115, 502119, 502120, 502128, 502129, 502132, 502103, 502129, C08F 468

Patent

active

052043045

ABSTRACT:
A vanadium-containing catalyst is prepared as the product of admixing an inorganic oxide, inorganic phosphate or mixtures thereof, a zinc-containing composition, and a vanadium-containing composition. An auxiliary compound such as, for example, an aluminum halide compound may optionally be admixed. The catalyst may be combined with a co-catalyst such as an aluminum alkyl and, optionally, a halocarbon promotor to yield an olefin polymerization catalyst system. The resulting catalyst system exhibits high activity, excellent hydrogen response and produces a polymer having a narrow to broad molecular weight distribution with a bimodal profile. The catalyst is especially useful in ethylene homopolymerization and co-polymerization.

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