发明名称 |
Zeolitic catalyst composition of improved shape selectivity |
摘要 |
There are provided aromatic conversion reactions for preparation of dialkylbenzenes, such as xylene and ethyltoluene, of enhanced para isomer content with a zeolitic catalyst composition of improved shape selectivity. The catalysts comprise certain zeolites which have been calcined at a high temperature of at least 649 DEG C. (i.e., 1200 DEG F.). These zeolites have a silica/alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12. Examples of such zeolites include ZSM-5 and ZSM-11.
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申请公布号 |
US5034362(A) |
申请公布日期 |
1991.07.23 |
申请号 |
US19890395875 |
申请日期 |
1989.08.18 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
CHU, POCHEN;DWYER, FRANCIS G.;SCHWARTZ, ALBERT B. |
分类号 |
B01J29/40;B01J29/46;C07C2/66;C07C6/12 |
主分类号 |
B01J29/40 |
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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