Controlled addition of promoters to ethylene oxide catalysts

Details Controlled addition of promoters to ethylene oxide catalysts Controlled addition of promoters to ethylene oxide catalysts

1982-04-02

1983-09-27

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252476, 549534, B01J 3104

Patent

active

044068204

ABSTRACT:
An improved method is disclosed for improving the selectivity of supported silver catalysts by incorporating a promoter therein. The improvement comprises forming a solution of a compound of the promoter and an anion selected from the group consisting of unsaturated carboxylic acids, aminoorganic acids, and hydroxybenzoic acids in a solvent and contacting the catalyst with the solution.

REFERENCES:
patent: 4012425 (1977-03-01), Nielsen et al.
patent: 4033903 (1977-07-01), Maxwell
patent: 4177169 (1979-12-01), Rebsdat
patent: 4278562 (1981-07-01), Mross et al.

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