发明名称 |
Preparation of alkyl-aromatic products |
摘要 |
A method of modifying a ZSM-5-type zeolite catalyst to increase selectivity of the catalyst for para-isomers in aromatic alkylation reactions is provided. The method includes contacting a ZSM-5-type zeolite catalyst with a fluoride-containing compound. The fluoride-containing zeolite catalyst can be used in aromatic alkylation to provide di-alkyl aromatic products. A method of preparing a xylene product is also accomplished by providing a fluoride-treated ZSM-5-type zeolite catalyst within a reactor. The fluoride-treated ZSM-5 zeolite catalyst is contacted with a toluene/methanol feed under reaction conditions conditions suitable for toluene methylation to form a xylene product containing at least 50% para-xylene by total mixed xylenes.
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申请公布号 |
US2005277795(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
US20050147732 |
申请日期 |
2005.06.08 |
申请人 |
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发明人 |
GHOSH ASHIM K.;HARVEY PAMELA |
分类号 |
B01J29/06;B01J29/40;C07C2/66;C07C2/68;C07C15/04;(IPC1-7):C07C2/68 |
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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