Direct epoxidation process using a mixed catalyst system
    25.
    发明申请
    Direct epoxidation process using a mixed catalyst system 失效
    直接环氧化工艺采用混合催化剂体系

    公开(公告)号:US20080255379A1

    公开(公告)日:2008-10-16

    申请号:US11784911

    申请日:2007-04-10

    IPC分类号: C07D301/06

    CPC分类号: C07D301/06

    摘要: The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst mixture containing a titanium or vanadium zeolite and a supported catalyst comprising palladium, gold, and an inorganic oxide carrier. Prior to its use in the epoxidation process, the supported catalyst is calcined in the presence of oxygen at a temperature from 450 to 800° C. and reduced in the presence of hydrogen at a temperature greater than 20° C. The process results in significantly reduced alkane byproduct formed by the hydrogenation of olefin.

    摘要翻译: 本发明是在含有钛或钒沸石的催化剂混合物和包含钯,金和无机氧化物载体的载体催化剂存在下,用氢和氧环氧化烯烃的方法。 在其用于环氧化方法之前,将载体催化剂在氧气存在下在450-800℃的温度下煅烧,并在氢气存在下在大于20℃的温度下还原。 由烯烃氢化形成的还原烷烃副产物。