Lanthanide halide catalyst, method of producing the catalyst, an

Details Lanthanide halide catalyst, method of producing the catalyst, an Lanthanide halide catalyst, method of producing the catalyst, an

1991-12-11

1994-02-15

Smith, Edward J.

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

Catalyst or precursor therefor

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

502102, 502111, 502113, 502117, 526114, C08F 4626, C08F 1000

Patent

active

052866947

ABSTRACT:
A polymerization catalyst is formed by producing a solution of a halide of scandium, yttrium, or a rare earth metal and an alcohol; contacting the solution with an organometallic compound to form a soluble complex; and contacting the soluble complex with a halide ion exchanging source. Optionally an ester or an anhydride can also be combined with the halide solution or the soluble complex. The catalyst thus produced can be combined with an organometallic cocatalyst.

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"Study on the NdCl.sub.3.sup.- -supported Ziegler-Natta Catalyst for Olefin Polymerization", Xiao et al.--Makromol. Chem. 192, 1059-65 (1991).

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