发明名称 |
Organophosphorus-treated zeolite catalysts for para-selective aromatics conversion |
摘要 |
A method is provided for treating modified ZSM-5 type zeolite catalysts with a vapor phase organophosphorus reagent such as trimethylphosphite or dimethylmethylphosphonate in order to improve the para-selective properties of such catalysts for the conversion of aromatic materials. The modified zeolites so treated are those which contain a minor proportion of a difficultly reducible oxide such as magnesium oxide, calcium oxide and/or phosphorus oxide. Such catalyst compositions can be used in alkylation, transalkylation or disproportionation processes to provide alkylated aromatic product mixtures having exceptionally high concentrations of the para-dialkylbenzene isomer.
|
申请公布号 |
US4554394(A) |
申请公布日期 |
1985.11.19 |
申请号 |
US19840669156 |
申请日期 |
1984.11.07 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
FORBUS, NANCY P.;KAEDING, WARREN W. |
分类号 |
B01J29/40;B01J29/65;B01J29/70;C07C2/66;C07C2/86;(IPC1-7):C07C5/22 |
主分类号 |
B01J29/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|