Method for producing cyclohexanone oxime
AssigneeSumitomo Chemical Company, Limited
InventorsMiyuki Oikawa, Masami Fukao
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Abstract
In producing cyclohexanone oxime by a method comprising the step of reacting cyclohexanone, hydrogen peroxide and ammonia in the presence of titanium silicate, a brand-new titanium silicate and a recycled titanium silicate which has been recovered from a production method of cyclohexanone oxime are used. In accordance with the present invention, cyclohexanone is subjected to ammoximation by hydrogen peroxide and ammonia with suppressing the degradation- of titanium silicate as a catalyst, to produce cyclohexanone oxime with a high yield.
Claims7
A method for producing a cyclohexanone oxime, the method comprising the step of reacting cyclohexanone, hydrogen peroxide and ammonia in the presence of a brand-new titanium silicate and a recycled titanium silicate, wherein the recycled titanium silicate is a titanium silicate which has been recovered from a method comprising the step of reacting cyclohexanone, hydrogen peroxide and ammonia in the presence of titanium silicate.
Dependencies are inferred from the claim text.