会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 97. 发明授权
    • Catalyst for producing ethylene oxide, process for producing the catalyst and process for producing ethylene oxide
    • 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
    • US08716175B2
    • 2014-05-06
    • US12083876
    • 2007-03-30
    • Katsumi NakashiroSoichiro YamadaTakanao Matsumoto
    • Katsumi NakashiroSoichiro YamadaTakanao Matsumoto
    • B01J23/48
    • B01J23/688B01J21/04B01J35/1009B01J37/0207C07D301/10Y02P20/52
    • 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.
    • 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。