Olefin polymerization catalyst of chromium and process of prepar

Details Olefin polymerization catalyst of chromium and process of prepar Olefin polymerization catalyst of chromium and process of prepar

1979-01-15

1980-08-19

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252465, 252468, 252469, 526106, B01J 2104, B01J 2108, B01J 2326

Patent

active

042183456

ABSTRACT:
A catalyst, a process of preparing the catalyst and a method of making polymers and copolymers of 1-olefins with the catalyst in which the catalyst is prepared by producing finely divided particles of chromium metal by a sublimation process and dispersing the sublimate of chromium particles with an organic liquid and providing a mixture comprising the chromium sublimate particles and a support such as silica. The mixture is then heat activated in an oxidizing atmosphere. In another aspect of the invention the chromium sublimate particles and support particles are further modified by having a titanium compound as a part of the mixture of chromium sublimate particles and support particles.

REFERENCES:
patent: 2825721 (1958-03-01), Hogan et al.
patent: 3346511 (1967-10-01), Hill
patent: 3780011 (1973-12-01), Pullukat et al.
patent: 4041224 (1977-08-01), Hoff et al.

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