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发明授权
US08716175B2 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

Catalyst for producing ethylene oxide, process for producing the catalyst and process for producing ethylene oxide
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（中）：

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。

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