06268305 is referenced by 20 patents and cites 11 patents.

Ethylbenzene is produced by alkylation over monoclinic silicalite catalysts having a weak acid site concentration of less than 50 micromoles per gram. A Feed stock containing benzene and ethylene is applied to an alkylation reaction zone having at least one catalyst bed containing a monoclinic silicalite catalyst having a weak acid site concentration of less than 50 micromoles per gram. The alkylation reaction zone is operated at temperature and pressure conditions in which the benzene is in a gaseous phase to cause gas-phase alkylation of the aromatic substrate in the presence of the silicalite catalysts to produce an alkylation product. The alkylation product is then withdrawn from the reaction zone for separation and recovery.

Title
Catalysts with low concentration of weak acid sites
Application Number
9/544581
Publication Number
6268305 (B1)
Application Date
April 6, 2000
Publication Date
July 31, 2001
Inventor
Ashim Kumar Ghosh
Houston
TX, US
James R Butler
Houston
TX, US
Agent
Jim D Wheelington
US
John K Abokhair
US
Assignee
Fina Technology
TX, US
IPC
B01J 21/00
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