Catalyst for oxidizing mercaptans and mercaptide compounds and m

Details Catalyst for oxidizing mercaptans and mercaptide compounds and m Catalyst for oxidizing mercaptans and mercaptide compounds and m

1978-12-04

1981-01-06

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, 252431N, 2603145, 208206, 208207, B01J 3122

Patent

active

042435510

ABSTRACT:
Disclosed is a catalyst and method for converting mercaptans and mercaptide compounds in aqueous alkaline solution to disulfides. Catalytic agent is a metal complex synthesized from 3,3',4,4'-benzophenonetetracarboxylic dianhydride and converted to either the alkali metal salt or to the acid form. The method for oxidizing the mercaptide compounds comprises contacting mercaptans and mercaptide compounds in aqueous alkaline solution with air in the presence of the catalyst and subsequently separating alkaline solution from the resultant disulfide compounds.

REFERENCES:
patent: 2988500 (1961-06-01), Gleim et al.
patent: 3252890 (1966-05-01), Warne
patent: 3923645 (1975-12-01), Anderson et al.
patent: 4028269 (1977-06-01), Carlson et al.

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