Solubilized chromium salt in polymerization catalyst

Details Solubilized chromium salt in polymerization catalyst Solubilized chromium salt in polymerization catalyst

1979-12-14

1982-06-08

Peters, G. O.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, B01S 2326

Patent

active

043338607

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: 2989653 (1961-05-01), Witt
patent: 3900457 (1975-08-01), Witt
patent: 3976632 (1976-08-01), Delap
patent: 4053437 (1977-10-01), Liu et al.
patent: 4212765 (1980-07-01), Gutweiler

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