Silver catalyst for production of ethylene oxide and method for

Details Silver catalyst for production of ethylene oxide and method for Silver catalyst for production of ethylene oxide and method for

1990-01-19

1991-12-31

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

B01J 2112, B01J 2350

Patent

active

050772562

ABSTRACT:
A silver catalyst for the production of ethylene oxide having 5 to 25% by weight, based on the amount of a finished catalyst, of finely divided metallic silver and 0.001 to 0.05 gram equivalent weight of cesium per kg of the finished catalyst carried on an .alpha.-alumina carrier having the outer surface thereof and the surface of pores in said carrier coated with amorphous silica, and a method for production thereof by supporting finely divided metallic silver and cesium and then subjecting the supported carrier to a high temperature heat treatment in an inert gas at a temperature of 400.degree. to 950.degree. C.

REFERENCES:
patent: 2194602 (1940-03-01), Law et al.
patent: 2458266 (1949-01-01), Heider et al.
patent: 3875080 (1975-04-01), Bergmann et al.
patent: 3962136 (1976-06-01), Nielsen et al.
patent: 4242235 (1980-12-01), Cognion
patent: 4305844 (1981-12-01), Vangermain et al.
patent: 4310442 (1982-01-01), Vangermain et al.

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