公开(公告)号：US5705661A

公开(公告)日：1998-01-06

申请号：US716890

申请日：1996-09-20

申请人： Tomoatsu Iwakura ,  Takako Imamoto ,  Katsumi Nakashiro

发明人： Tomoatsu Iwakura ,  Takako Imamoto ,  Katsumi Nakashiro

IPC分类号： B01J21/04 ,  B01J21/12 ,  B01J23/66 ,  B01J23/68 ,  B01J35/10 ,  B01J37/02 ,  C07D301/10

CPC分类号： B01J23/66 ,  B01J23/688 ,  B01J35/10 ,  B01J37/0205 ,  C07D301/10 ,  B01J21/04 ,  B01J21/12 ,  B01J35/1009 ,  B01J35/1038 ,  Y02P20/52

摘要： A catalyst for oxidizing ethylene and producing ethylene oxide, said catalyst being prepared by pretreating a porous carrier with a solution containing a lithium compound and a cesium compound, thereafter, impregnating a solution containing a silver compound and a cesium compound in the pretreated porous carrier and then heat-treating the impregnated porous carrier. The use of the catalyst of this invention provides high selectivity in the production of ethylene oxide by the vapor contact oxidation of ethylene.

摘要翻译： 一种用于氧化乙烯和生产环氧乙烷的催化剂，所述催化剂是通过用含有锂化合物和铯化合物的溶液预处理多孔载体，然后在预处理的多孔载体中浸渍含有银化合物和铯化合物的溶液制备的， 然后对浸渍的多孔载体进行热处理。 使用本发明的催化剂通过乙烯的气相接触氧化在环氧乙烷的生产中提供高选择性。

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。

公开(公告)号：US06498122B2

公开(公告)日：2002-12-24

申请号：US09983429

申请日：2001-10-24

申请人： Katsumi Nakashiro

发明人： Katsumi Nakashiro

IPC分类号： B01J2348

CPC分类号： C07D301/10 ,  B01J23/66 ,  B01J37/0203 ,  B01J37/086

摘要： An olefin oxidation catalyst comprising a carrier, and silver and an alkali metal supported thereon, wherein the content of organic substances is less than 0.1 wt %.

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。