发明名称 |
SUPPORTED SILVER CATALYST AND AN EPOXIDATION PROCESS USING THE CATALYST |
摘要 |
A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1 m2/g, and a pore size distribution such that pores with diameters in the range of from 0.2 to 10 mum represent at least 70% of the total pore volume and such pores together provide a pore volume of at least 0.27 ml/g, relative to the weight of the carrier; a process for the preparation of a catalyst which process comprises depositing silver on a carrier, wherein the carrier has been obtained by a method which comprises forming a mixture comprising: a) from 50 to 90% w of a first particulate alpha-alumina having an average particle size (d50) of from more than 10 up to 100 mum; and b) from 10 to 50% w of a second particulate alpha-alumina having an average particle size (d50) of from 1 to 10 mum; % w being based on the total weight of alpha-alumina in the mixture; and shaping the mixture into formed bodies and firing the formed bodies to form the carrier, and a process for the epoxidation of an olefin, which process comprises reacting an olefin with oxygen in the presence of a said catalyst. |
申请公布号 |
EP1511563(B1) |
申请公布日期 |
2012.11.28 |
申请号 |
EP20030713718 |
申请日期 |
2003.02.25 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
LOCKEMEYER, JOHN, ROBERT;YEATES, RANDALL, CLAYTON;SZYMANSKI, THOMAS;REMUS, DONALD, JAMES;GERDES, WILLIAM, HERMAN |
分类号 |
B01J23/66;B01J21/04;B01J21/12;B01J23/50;B01J23/68;B01J35/10;B01J37/00;B01J37/02;B01J37/08;C07B61/00;C07C23/10;C07C29/10;C07C31/20;C07C213/04;C07C215/08;C07D301/10;C07D303/04 |
主分类号 |
B01J23/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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