发明名称 |
Method for preparing high silica faujacitic zeolites |
摘要 |
A method for preparing novel zeolitic catalyst compositions having a high Si/Al ratio and a crystallinity of at least about 70%. The method involves cation exchanging an as synthesized faujasite material having an Si/Al greater than about 4 with a component selected from the group consisting of ammonium ions and mineral acids, then steam calcining said cation exchanged faujasite in a single steam calcination step at a temperature from about 900 DEG F. to about 1 500 DEG F.
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申请公布号 |
US6054113(A) |
申请公布日期 |
2000.04.25 |
申请号 |
US19980040154 |
申请日期 |
1998.03.17 |
申请人 |
EXXON RESEARCH AND ENGINEERING CO. |
发明人 |
VAUGHAN, DAVID E. W.;STROHMAIER, KARL G.;MCVICKER, GARY B.;FEELEY, OWEN C. |
分类号 |
B01J29/08;C01B39/02;(IPC1-7):C01B39/20 |
主分类号 |
B01J29/08 |
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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