Process for preparing silver-supported catalyst for the producti

Details Process for preparing silver-supported catalyst for the producti Process for preparing silver-supported catalyst for the producti

1978-06-28

1981-02-03

Lawrence, Evan K.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252476, 26034834, B01J 2348

Patent

active

042487404

ABSTRACT:
An improved process for preparing a silver-supported catalyst for use in the production of ethylene oxide by catalytic vapor phase oxidation of ethylene with molecular oxygen, which comprises impregnating a porous inorganic carrier with a solution of a silver compound containing a reducing compound, subjecting the impregnated product to a reducing treatment at 50.degree. to 200.degree. C. to disperse and deposit metallic silver on the external surface of the carrier and the internal surfaces of its pores, washing the silver-supported carrier with water, a lower alcohol or both, drying the washed product at a temperature of 50.degree. to 150.degree. C., impregnating the dried product with a solution containing a promoter, and evaporating the liquid ingredients.

REFERENCES:
patent: 4033903 (1977-07-01), Maxwell

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