Zinc-promoted catalysts for epoxidation of ethylene
    2.
    发明授权
    Zinc-promoted catalysts for epoxidation of ethylene 有权
    锌促进的乙烯环氧化催化剂

    公开(公告)号:US08975424B1

    公开(公告)日:2015-03-10

    申请号:US14143684

    申请日:2013-12-30

    CPC classification number: B01J23/66 B01J23/688 C07D301/10

    Abstract: A silver-based ethylene oxide catalyst is provided that has enhanced stability. The enhanced stability is obtained in the present invention by providing a silver-based ethylene oxide catalyst that includes from 100 ppm to 1000 ppm of zinc, and from greater than 450 ppm to less than 800 ppm of cesium. Zinc and cesium are promoters that are introduced to a finished carrier either prior to, coincidentally with, or subsequent to the deposition of the silver. The silver-based ethylene oxide catalyst can be used in the epoxidation of ethylene to ethylene oxide.

    Abstract translation: 提供了具有增强的稳定性的银基环氧乙烷催化剂。 通过提供包含100ppm至1000ppm锌以及大于450ppm至小于800ppm的铯的银基环氧乙烷催化剂,在本发明中获得了增强的稳定性。 锌和铯是在银沉积之前,巧合地或之后引入成品载体的促进剂。 银基环氧乙烷催化剂可用于乙烯至环氧乙烷的环氧化。

    EPOXIDATION PROCESS
    4.
    发明申请
    EPOXIDATION PROCESS 有权
    环氧化工艺

    公开(公告)号:US20140031568A1

    公开(公告)日:2014-01-30

    申请号:US13950973

    申请日:2013-07-25

    Abstract: A method for producing ethylene oxide comprising: providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; contacting the one or more feed components with a desulfurization catalyst comprising a high surface area support and an amount of silver, wherein at least 20% of the silver is present as oxidized silver; and contacting the one or more feed components with a silver-containing epoxidation catalyst disposed inside an ethylene oxide reactor to form a reaction gas comprising ethylene oxide.

    Abstract translation: 一种生产环氧乙烷的方法,包括:提供一种或多种进料组分,其中所述一种或多种进料组分至少包含通过使乙醇脱水得到的乙烯; 使一种或多种进料组分与包含高表面积载体和一定量的银的脱硫催化剂接触,其中至少20%的银以氧化银的形式存在; 并使一种或多种进料组分与设置在环氧乙烷反应器内部的含银环氧化催化剂接触以形成包含环氧乙烷的反应气体。

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