07304194 is referenced by 19 patents and cites 160 patents.

A method of treating a ZSM-5-type zeolite catalyst is carried out by treating a ZSM-5 zeolite catalyst having a silica/alumina mole ratio of at least about 200 with a phosphorus compound. The phosphorus-treated ZSM-5 zeolite catalyst is calcined and steamed. Steaming of the catalyst is carried out at a temperature of less than about 300° C. The phosphorus-treated ZSM-5 zeolite catalyst has less than 0.05% by weight of the catalyst of any other element other than phosphorus provided from any treatment of the ZSM-5 zeolite with a compound containing said other element. The catalyst may be used in aromatic alkylation by contacting the catalyst with feed of an aromatic hydrocarbon and an alkylating agent within a reactor under reactor conditions suitable for aromatic alkylation. Water cofeed may be introduced water into the reactor during the aromatic alkylation reaction.

Title
Hydrothermal treatment of phosphorus-modified zeolite catalysts
Application Number
11/122919
Publication Number
7304194 (B2)
Application Date
May 5, 2005
Publication Date
December 4, 2007
Inventor
Roncalli J Twomey
Houston
TX, US
Pamela Harvey
Missouri City
TX, US
Neeta Kulkarni
Houston
TX, US
Ashim Kumar Ghosh
Houston
TX, US
Agent
Griggs Bergen
Jim D Wheelington
Grady K Bergen
Assignee
Saudi Basic Industries Corporation
SA
IPC
C07C 2/68
C07C 2/66
C07C 2/64
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