Process for producing oxime
First Claim
1. A process for producing an oxime, the process comprising the step of reacting a ketone, hydrogen peroxide and ammonia in the presence of a crystalline titanosilicate having a MWW structure, under the reaction condition that ammonia concentration in a liquid portion of the reaction mixture is about 1% by weight or more.
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Abstract
A process for producing an oxime is provided, wherein the process comprises the step of reacting a ketone, hydrogen peroxide and ammonia in the presence of a crystalline titanosilicate having MWW structure under the condition that the ammonia concentration in the liquid portion of the reaction mixture is about 1% by weight or more. By the process, an ammoximation reaction of the ketone can be carried out with a high conversion of the ketone and a high selectivity to the oxime corresponding to the ketone, thereby producing the oxime with a high yield.
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6 Claims
- 1. A process for producing an oxime, the process comprising the step of reacting a ketone, hydrogen peroxide and ammonia in the presence of a crystalline titanosilicate having a MWW structure, under the reaction condition that ammonia concentration in a liquid portion of the reaction mixture is about 1% by weight or more.
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