| abstract |
When an olefin such as propylene, hydrogen, and oxygen are continuously supplied for a long period of time, the amount of alkylene oxide produced may gradually decrease as the catalyst capacity of the catalyst used decreases. There was a problem. A method for preparing a catalyst, the method comprising a step of contacting a catalyst containing titanosilicate and a noble metal with an alcohol having 1 to 12 carbon atoms, and A process for producing an alkylene oxide, comprising reacting hydrogen, oxygen and an olefin in the presence of a catalyst prepared by the above method and a nitrile compound. [Selection figure] None |