发明名称 |
PROCESS FOR REMOVING IONIZABLE SPECIES FROM CATALYST SURFACETO IMPROVE CATALYTIC PROPERTIES |
摘要 |
This invention relates to a process for the preparation of a catalyst having improved properties, said process comprising selecting a carrier, lowering the concentration of ionizable species present on the surface of the carrier, and depositing a catalytically effective amount of one or more catalytically reactive metals on the carrier. The invention further relates to catalysts made from the process and to the use of such catalysts in alkene epoxidation processes. In the examples the lowering of the concentration of ionizable species is obtained by washing the alpha alumina carrier with boiling water. Then the dried carrier is impregnated with a promotor and silver. |
申请公布号 |
CA2343783(C) |
申请公布日期 |
2008.02.12 |
申请号 |
CA19992343783 |
申请日期 |
1999.09.09 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
LOCKEMEYER, JOHN ROBERT |
分类号 |
B01J33/00;B01J37/06;B01J21/04;B01J23/04;B01J23/10;B01J23/50;B01J23/74;B01J37/02;C07B61/00;C07D301/10 |
主分类号 |
B01J33/00 |
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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