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公开(公告)号:US06323351B1
公开(公告)日:2001-11-27
申请号:US09458136
申请日:1999-12-09
IPC分类号: C07D30806
CPC分类号: C07D301/04 , B01J23/50 , B01J23/52 , B01J23/66 , B01J29/89 , C07D301/10 , Y02P20/52
摘要: A process and catalysts for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to an olefin oxide, such as propylene oxide. The process involves contacting the olefin under reaction conditions with oxygen in the presence of hydrogen and a catalyst. The catalyst contains silver and titanium, optionally gold, and optionally, at least one promoter element selected from Group 1, Group 2, zinc, cadmium, the lanthanide rare earths, and the actinide elements. Suitable supports include titanium dioxide, titanium dioxide on silica, titanosilicates, promoter metal titanates, titanium dispersed on silica and promoter metal silicates.
摘要翻译: 用于将具有三个或更多个碳原子的烯烃(例如丙烯)通过氧直接氧化成烯烃氧化物如环氧丙烷的方法和催化剂。 该方法包括在氢气和催化剂存在下,使反应条件下的烯烃与氧气接触。 催化剂含有银和钛,任选的金,以及任选的至少一种选自组1,组2,锌,镉,镧系稀土和锕系元素的助催化剂元素。 合适的载体包括二氧化钛,二氧化硅上的二氧化钛,钛硅酸盐,助催化剂金属钛酸盐,分散在二氧化硅上的钛和助催化剂金属硅酸盐。