Aromatic alkylation with phosphorus-modified zeolite catalyst

Details Aromatic alkylation with phosphorus-modified zeolite catalyst Aromatic alkylation with phosphorus-modified zeolite catalyst

2008-06-19

2009-12-22

Wood, Elizabeth D (Department: 1793)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

C585S466000

Reexamination Certificate

active

07635793

ABSTRACT:
A catalyst is formed from a phosphorus-containing ZSM-5-type zeolite. The ZSM-5-type zeolite has a silica/alumina molar ratio of at least 200. The phosphorus-containing ZSM-5-type zeolite also has a phosphorus content of at least 8% by weight of zeolite and has multiple phosphorus species exhibited by at least two31P MAS NMR peaks with maxima at from about 0 to about −50 ppm. The catalyst may be used in aromatic alkylation by contacting the catalyst with a feed of an aromatic hydrocarbon and an alkylating agent under reaction conditions suitable for aromatic alkylation.

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