Patent
Process for producing cyclohexanone oxime (US Patent 7449600)
Sumitomo Chemical Company, Limited · Granted Nov 11, 2008 · Filed Feb 24, 2006
Patent number: 7449600 Kind code: B2 Granted: 2008-11-11 Filed: 2006-02-24 Inventors: Masami Fukao (Ritto, JP); Shinichi Kawase (Niihama, JP) Assignees: Sumitomo Chemical Company, Limited (Tokyo, JP)
Abstract
A process for producing cyclohexanone oxime is provided: (1) reacting cyclohexanone, hydrogen peroxide and ammonia in the presence of a titanosilicate catalyst to give a reaction solution containing cyclohexanone oxime, water, unreacted ammonia and unreacted cyclohexanone, (2) distilling off ammonia, (3) an extraction
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