发明名称 |
VERFAHREN ZUR HERSTELLUNG VON ALKYLIERTEN BENZOLEN |
摘要 |
A process of preparing an alkylated benzene or mixture of alkylated benzenes involving contacting a benzene feedstock with a solid acid, such as an acidic clay or acid zeolite, in a pretreatment zone at a temperature greater than about 130° C. but less than about 300° C. to form a pretreated benzene feedstock, and thereafter contacting the pretreated benzene feedstock with (a) an alkylating agent in an alkylation zone or (b) a transalkylating agent in a transalkylation zone, in the presence of an alkylation/transalkylation catalyst so as to prepare the alkylated benzene or mixture of alkylated benzenes. The pretreatment step improves the lifetime of the alkylation/transalkylation catalyst. Preferred products are ethylbenzene and cumene. |
申请公布号 |
DE69712495(T2) |
申请公布日期 |
2002.08.29 |
申请号 |
DE1997612495T |
申请日期 |
1997.08.20 |
申请人 |
THE DOW CHEMICAL CO., MIDLAND |
发明人 |
SAMSON, S.;MEIMA, R.;VAN DER AALST, J.;LEE, JOHN;GARCES, M. |
分类号 |
B01J29/18;C07B61/00;C07C2/66;C07C2/70;C07C6/12;C07C7/12;C07C7/13;C07C15/02;C07C15/073;C07C15/085 |
主分类号 |
B01J29/18 |
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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