Title:
MANUFACTURE OF 2*3*7*8*12*13*17*188 TETRA*1*22BENZO4*4**PHTHALOYL***PORPHYRAZINEE 2*22*23*244TETRAENE OR ITS SUBSTITUTED DERIVATIVE
Document Type and Number:
Japanese Patent JPS5681589
Kind Code:
A
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.
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Inventors:
KURIFUOODO UOODO
Application Number:
JP14454780A
Publication Date:
July 03, 1981
Filing Date:
October 17, 1980
Export Citation:
Assignee:
ASHLAND OIL INC
International Classes:
C10G27/10; B01J31/00; B01J31/16; B01J31/18; B01J31/22; C02F1/74; C07B61/00; C07C67/00; C07C313/00; C07C319/24; C07C321/14; C07C321/28; C07D487/22; C07F9/00; C07F15/06; C09B47/04; C09B47/06; C10G27/06; C10G45/04; H01B5/16; (IPC1-7): B01J31/22; C07C149/12; C07D487/22; C10G45/04