Process for preparation of cyclohexanone oxime
AssigneeAsahi Kasei Chemicals Corporation
InventorsKen Suzuki, Hajime Nagahara
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Abstract
A method for producing cyclohexanone oxime, which comprises the steps of (1) subjecting to an amination reaction a starting material selected from the group consisting of cyclohexanol, cyclohexanone and a mixture thereof, thereby obtaining cyclohexylamine, and (2) subjecting the obtained cyclohexylamine to a partial oxidation reaction, thereby obtaining cyclohexanone oxime, wherein a by-product (α) formed in the step (1) and/or a by-product (β) formed in the step (2) are/is recycled to a reaction system of the amination reaction in the step (1).
Claims15
A method for producing cyclohexanone oxime, which comprises the steps of:
- (1) subjecting to an amination reaction a starting material selected from the group consisting of cyclohexanol, cyclohexanone and a mixture thereof, thereby obtaining cyclohexylamine, and
- (2) subjecting the obtained cyclohexylamine to a partial oxidation reaction, thereby obtaining cyclohexanone oxime,
- wherein at least one by-product selected from the group consisting of a by-product (α) formed in said step (1) and a by-product (β) formed in said step (2) is recycled to a reaction system of the amination reaction in said step (1).
Dependencies are inferred from the claim text.