Supported catalysts for the polymerization of ethylene

Details Supported catalysts for the polymerization of ethylene Supported catalysts for the polymerization of ethylene

1982-05-10

1983-12-20

Garvin, Patrick

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

Catalyst or precursor therefor

Organic compound containing

526125, 502169, C08F 402, C08F 464

Patent

active

044216742

ABSTRACT:
A process for the preparation of a catalyst which is highly active in the polymerization of gaseous ethylene is described the process comprising the steps of spray drying an ethanolic solution of MgCl.sub.2 to obtain MgCl.sub.2 particles of from 3 to 100 microns in size and with a residual alcoholic OH-groups content of from 1.5% to 20% by wt., the MgCl.sub.2 in said particles having an X-ray spectrum with a maximum peak at 10.8 angstrom, reacting said particles with a titanium halide in liquid or vapor phase and mixing the obtained reaction product with an alkylaluminium or an alkylaluminium halide in such amount to obtain an atomic ratio Al:Ti of from 100:1 to 5,000:1.

REFERENCES:
patent: 3953414 (1976-04-01), Galli et al.
patent: 4111835 (1978-09-01), Foschini et al.
patent: 4226963 (1980-10-01), Giannini et al.
patent: 4347162 (1982-08-01), Invernizzi et al.

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