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    Catalyst for producing ethylene oxide, process for producing the catalyst and process for producing ethylene oxide
    2.
    发明授权
    Catalyst for producing ethylene oxide, process for producing the catalyst and process for producing ethylene oxide 有权
    用于生产环氧乙烷的催化剂，用于生产催化剂的方法和用于生产环氧乙烷的方法

    公开(公告)号：US08716175B2

    公开(公告)日：2014-05-06

    申请号：US12083876

    申请日：2007-03-30

    申请人： Katsumi Nakashiro ,  Soichiro Yamada ,  Takanao Matsumoto

    发明人： Katsumi Nakashiro ,  Soichiro Yamada ,  Takanao Matsumoto

    IPC分类号： B01J23/48

    CPC分类号： B01J23/688 ,  B01J21/04 ,  B01J35/1009 ,  B01J37/0207 ,  C07D301/10 ,  Y02P20/52

    摘要： There is provided a catalyst for producing ethylene oxide from ethylene which is composed of at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, and can be improved, in particular, in selectivity.The present invention relates to a catalyst for producing ethylene oxide from ethylene, comprising at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, said catalyst being produced by optionally pretreating the carrier to support an alkali metal thereon and then supporting Ag, Cs and Re on the carrier, wherein the carrier has a specific surface area of 0.6 to 3.0 m2/g and a weight ratio of a silicon (Si) content to a sodium (Na) content of 2 to 50 in terms of SiO2/Na2O; a content of Re in the catalyst is 170 to 600 ppm per 1 m2/g of the specific surface area of the carrier on the basis of a weight of the carrier; and a molar ratio of Cs to Re in the catalyst is 0.3 to 19.

    摘要翻译： 提供了由至少由银（Ag），铯（Cs），铼（Re）和载体构成的由乙烯生产环氧乙烷的催化剂，特别是可选地提高。 本发明涉及一种由乙烯生产环氧乙烷的催化剂，其至少包含银（Ag），铯（Cs），铼（Re）和载体，所述催化剂是通过任选地预处理载体以在其上负载碱金属而制备的 然后在载体上负载Ag，Cs和Re，其中载体的比表面积为0.6〜3.0m 2 / g，硅（Si）含量与钠（Na）含量的重量比为2〜50 SiO 2 / Na 2 O; 基于载体的重量，催化剂中Re的含量为每1m 2 / g载体的比表面积为170〜600ppm; 催化剂中Cs与Re的摩尔比为0.3〜19。

    Catalyst for Producing Ethylene Oxide, Process for Producing the Catalyst and Process for Producing Ethylene Oxide
    3.
    发明申请
    Catalyst for Producing Ethylene Oxide, Process for Producing the Catalyst and Process for Producing Ethylene Oxide 有权
    用于生产环氧乙烷的催化剂，用于生产催化剂的方法和用于生产环氧乙烷的方法

    公开(公告)号：US20090192324A1

    公开(公告)日：2009-07-30

    申请号：US12083876

    申请日：2007-03-30

    申请人： Katsumi Nakashiro ,  Soichiro Yamada ,  Takanao Matsumoto

    发明人： Katsumi Nakashiro ,  Soichiro Yamada ,  Takanao Matsumoto

    IPC分类号： C07D301/03 ,  B01J21/06 ,  B01J23/50

    CPC分类号： B01J23/688 ,  B01J21/04 ,  B01J35/1009 ,  B01J37/0207 ,  C07D301/10 ,  Y02P20/52

    摘要： Disclosed is a catalyst for ethylene oxide production which is used for producing ethylene oxide from ethylene. This catalyst is composed of at least silver (Ag), caesium (Cs), rhenium (Re) and a carrier, and improved especially in selectivity. Specifically disclosed is a catalyst for ethylene oxide production, which is used for producing ethylene oxide from ethylene and composed of at least silver (Ag), caesium (Cs), rhenium (Re) and a carrier. If necessary, an alkali metal is loaded onto the carrier as a pretreatment, and then Ag, Cs and Re are loaded onto the carrier, thereby obtaining the catalyst. The carrier has a specific surface area of 0.6-3.0 m2/g, and a weight ratio between the silicon (Si) content and the sodium (Na) content in terms of SiO2/Na2O of 2-50, The Re content (based the carrier) is 170-600 ppm per 1 m2/g or the specific surface area of the carrier, and the molar ratio Cs/Re is 0.3-19.

    摘要翻译： 公开了用于从乙烯生产环氧乙烷的环氧乙烷生产催化剂。 该催化剂由至少银（Ag），铯（Cs），铼（Re）和载体组成，特别是在选择性上得到改善。 具体公开了用于生产环氧乙烷的催化剂，其用于从乙烯生产环氧乙烷，并且至少由银（Ag），铯（Cs），铼（Re）和载体组成。 如果需要，将碱金属作为预处理装载到载体上，然后将Ag，Cs和Re加载到载体上，从而获得催化剂。 载体的比表面积为0.6-3.0m 2 / g，SiO 2 / Na 2 O的硅（Si）含量和钠（Na）含量之间的重量比为2-50，Re含量（以 载体）每1m 2 / g为170-600ppm或载体的比表面积，并且Cs / Re的摩尔比为0.3-19。