发明名称 |
Preparation and use of catalysts comprising a mixture of tungsten oxide and silica supported on a boehmite-like surface |
摘要 |
Useful cracking catalysts and catalyst supports comprising a mixture of tungsten oxide and silica supported on a boehmite-like surface which, in turn, is supported on alumina are prepared by forming a composite of particles of (a) tungsten oxide, (b) silica and (c) boehmite and subjecting the composite to steaming at a temperature of at least about 500 DEG C. During the steaming, the tungsten oxide and silica react with the surface of the boehmite as the boehmite converts to alumina.
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申请公布号 |
US4891127(A) |
申请公布日期 |
1990.01.02 |
申请号 |
US19890310984 |
申请日期 |
1989.02.15 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
MURREL, LAWRENCE L.;DISPENZIERE, JR., NICHOLAS C. |
分类号 |
B01J21/12;B01J23/30 |
主分类号 |
B01J21/12 |
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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