| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method which is industrially advantageous in producing an oxime by an ammoximation reaction of a ketone.SOLUTION: An oxime production method comprises: a step (1) of obtaining a t-butyl hydroperoxide by the oxidation of isobutane; a step (2) of obtaining an oxime and t-butyl alcohol by an ammoximation reaction of the t-butyl hydroperoxide obtained in the step (1), ammonia, and a keton in the presence of a catalyst; a step (3) of obtaining isobutane by the hydrogenation of the t-butyl alcohol, obtained in the step (2), in the presence of a catalyst; and a step (4) of recycling at least a part of the isobutane obtained in the step (3) to the step (1). |
