发明名称 |
Shock calcined aluminosilicate zeolites |
摘要 |
A process for producing a thermally shock calcined aluminosilicate zeolite comprising (A) precalcining an aluminosilicate zeolite at a relatively low temperature, (B) very rapidly increasing the temperature of the aluminosilicate zeolite to a relatively high temperature for a short period of time, and (C) rapidly cooling the aluminosilicate zeolite. The resulting zeolite is catalytically active for hydrocarbon conversion reactions and is particularly selective for the production of para-xylene from a reaction mix of toluene and a methylating agent.
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申请公布号 |
US4758328(A) |
申请公布日期 |
1988.07.19 |
申请号 |
US19850801591 |
申请日期 |
1985.11.25 |
申请人 |
UNION OIL COMPANY OF CALIFORNIA |
发明人 |
YOUNG, DEAN A. |
分类号 |
B01J29/06;B01J29/40;B01J29/82;B01J37/08;C07C2/86;(IPC1-7):C10G47/12;C07C2/68;C07C5/22;C07C5/13 |
主分类号 |
B01J29/06 |
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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