| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a titanosilicate which exhibits excellent performances as a catalyst in an ammoximation reaction of a ketone in terms of the conversion rate of the ketone, the selectivity of an oxime and catalyst life, and to provide a method for producing an oxime with good selectivity while maintaining catalyst life over a prolonged period of time by bringing a ketone into an ammoximation reaction at a high conversion rate. <P>SOLUTION: The method for producing the titanosilicate having MWW structure includes: mixing a silicon compound, a titanium compound, a boron compound, water and a structure directing agent; bringing a prepared mixture into a hydrothermal synthesis reaction by temperature rising to 150-200°C; and firing obtained crystals, wherein a temperature rising rate in the temperature range from 50°C to 150°C is ≤45°C/h. The method for producing an oxime includes bringing a ketone into an ammoximation reaction with a peroxide and ammonia in the presence of the titanosilicate having MWW structure. <P>COPYRIGHT: (C)2009,JPO&INPIT |
