Process for preparing a polymerization catalyst and preparation

Details Process for preparing a polymerization catalyst and preparation Process for preparing a polymerization catalyst and preparation

1982-08-05

1984-05-22

Garvin, Patrick

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

Catalyst or precursor therefor

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

502111, 502117, 526142, 526169, C08F 462

Patent

active

044500980

ABSTRACT:
Process for preparing and treating a chromium-containing catalyst so that when the catalyst is activated the risk of explosion is substantially reduced. The catalyst comprises a complex of chromium and optionally other transition metal complexes reacted with one or more organometallic compounds of a metal of group II or III of the periodic table, which metal contains hydrocarbyl groups of 1-20 carbon atoms. The reaction product is applied to an inert inorganic support to form the catalyst component which is deactivated by treatment with oxygen or an alcohol to modify or replace residual hydrocarbyl groups. The catalyst component may be activated to form the catalyst by heating in the range 200.degree.-1200.degree. C. The catalyst is used to catalyze a polymerization of alpha-olefins.

REFERENCES:
patent: 3708465 (1973-01-01), Dietrich et al.
patent: 4146695 (1979-03-01), van de Leemput
patent: 4209603 (1980-06-01), van de Leemput
R. A. V. Faff and R. W. Doak: "High Polymers", vol. XX, 1965, part I, Crystalline Olefin Polymers, John Wiley and Sons, Inc. London (GB); p. 371, lin s7-16.

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