Method for oxidizing mercaptans and mercaptide compounds from aq

Details Method for oxidizing mercaptans and mercaptide compounds from aq Method for oxidizing mercaptans and mercaptide compounds from aq

1976-12-22

1978-05-23

Crasanakis, George

Mineral oils: processes and products

Refining

Sweetening

252428, 260608, 423183, 252430, 252431N, C10G 2706

Patent

active

040909549

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: 3252892 (1966-05-01), Gleim
patent: 3923645 (1975-12-01), Anderson, Jr. et al.

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