发明名称 |
Rejuvenation of deselectivated alkylation catalyst |
摘要 |
A process for alkylation of aromatic hydrocarbon reactants to dialkylbenzene products, whereby chemically modified zeolite catalysts are treated with an organic acid to enhance their intrinsic para-selectivity in the alkylation reaction. The modified zeolites which may be so reselectivated or improved comprise those crystalline zeolites having a constraint index of 1 to 12, a silica to alumina mole ratio of at least 12, and having a minor proportion of the oxide form of one or more chemical elements (e.g. phosphorus and magnesium) deposited thereon.
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申请公布号 |
US4486616(A) |
申请公布日期 |
1984.12.04 |
申请号 |
US19830493853 |
申请日期 |
1983.05.12 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
CHU, CHIN-CHIUN;KAEDING, WARREN W. |
分类号 |
B01J29/40;B01J29/90;B01J38/12;B01J38/62;C07C2/66;(IPC1-7):C07C2/68;B01J29/38;B01J29/28 |
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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