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    • 4. 发明申请
    • OLEFIN EPOXIDATION WITH DUAL FUNCTIONAL CATALYST
    • 具有双功能催化剂的烯烃环氧化
    • WO2003047750A1
    • 2003-06-12
    • PCT/US2002/029644
    • 2002-09-19
    • HYDROCARBON TECHNOLOGIES, INC.ZHOU, BingMICHAEL, Rueter
    • ZHOU, BingMICHAEL, Rueter
    • B01J29/035
    • C07D301/12B01J23/38B01J23/40B01J29/89B01J35/0013B01J35/0046B01J35/006B01J37/0203C01B15/029Y02P20/125Y02P20/52Y02P20/588
    • The invention discloses a dual-functional catalyst composition and an integrated process for production of olefin epoxides including propylene oxide by catalytic reaction of hydrogen peroxide from hydrogen and oxygen with olefin feeds such as propylene. The epoxides and hydrogen peroxide are preferably produced simultaneously in situ. The dual-functional catalyst comprises noble metal crystallites with dimensions on the manometer scale (on the order of , specially dispersed on titanium silicalite substrate particles. The dual functional catalyst catalyzes both the direct reaction of hydrogen and oxygen to generate hydrogen peroxide intermediate on the noble metal catalyst surface and the reaction of the hydrogen peroxide intermediate with the propylene feed to generate propylene oxide product. Combining both these functions in a single catalyst provides a very efficient integrated process operable below the flammability limits of hydrogen and highly selective for the production of hydrogen peroxide to produce olefin oxide such as propylene oxide without formation of undesired co-products.
    • 本发明公开了一种双功能催化剂组合物和用于通过由氢和氧与烯烃进料如丙烯的过氧化氢的催化反应生产烯烃环氧化物(包括环氧丙烷)的综合方法。 环氧化物和过氧化氢优选同时原位制备。 双功能催化剂包括尺寸在压力计尺度(大约<1nm至10nm>)的贵金属微晶,特别分散在钛硅质基底颗粒上,双功能催化剂催化氢和氧的直接反应 在贵金属催化剂表面产生过氧化氢中间体和过氧化氢中间体与丙烯进料的反应产生环氧丙烷产物。将这两种功能结合在单一催化剂中提供了非常有效的一体化方法,其可操作低于氢的可燃性极限, 对于生产过氧化氢以产生烯烃氧化物如环氧丙烷的高度选择性,而不形成不需要的共同产物。