Solubilized chromium salt in particulate support

Details Solubilized chromium salt in particulate support Solubilized chromium salt in particulate support

1982-01-26

1983-08-09

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, 252458, B01J 3112

Patent

active

043977669

ABSTRACT:
A chromium salt such as ammonium chromate or ammonium dichromate, which is normally insoluble in nonaqueous solvents which do not easily rehydrate the silica surface is solubilized, for instance by treating it with a crown ether, and impregnated onto a particulate support from a nonaqueous solvent which does not easily rehydrate the silica. The resulting composition is then activated in an oxygen ambient such as air in a conventional manner and then utilized as a catalyst for polymerization reactions such as the production of polyolefins.

REFERENCES:
patent: 3879362 (1975-04-01), Chalfont et al.
patent: 3900457 (1975-08-01), Witt
patent: 4053437 (1977-10-01), Liu et al.
patent: 4212765 (1980-07-01), Gutweiler

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