Catalyst-forming components, process for preparing same, and cat

Details Catalyst-forming components, process for preparing same, and cat Catalyst-forming components, process for preparing same, and cat

1979-05-29

1981-07-07

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252429C, 526129, C08F 402, C08F 464

Patent

active

042773717

ABSTRACT:
A solid catalyst-forming component based on titanium trichloride is prepared by reducing TiCl.sub.4 to TiCl.sub.3 with an organic aluminum compound, at low temperature, and in a suspension of finely dispersed siliceous material in a mixture of inert hydrocarbon solvent and TiCl.sub.4. Catalysts prepared from the solid component and useful in the stereospecific polymerization of alpha-olefins to highly isotactic polymers are also disclosed.
More specifically, the disclosed process for preparing the solid catalyst-forming component comprises the following operations:

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patent: 4098979 (1978-07-01), Maemoto et al.
The Condensed Chemical Dictionary, Fifth Edition (1956), Reinhold Pub. Corp., N.Y., N.Y., p. 357.

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