Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs
Reexamination Certificate
2006-06-13
2006-06-13
Wood, Elizabeth D. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
C502S074000, C502S077000, C502S078000
Reexamination Certificate
active
07060644
ABSTRACT:
A catalyst for use in aromatic alkylation, such as toluene alkylation with methanol, is comprised of a zeolite with pore size from about 5.0 to about 7.0 Å containing a hydrogenating metal. The catalyst may be used in preparing an alkyl aromatic product by providing the catalyst within a reactor. The catalyst may be contacted with an aromatic hydrocarbon and an alkylating agent in the presence of hydrogen under reaction conditions suitable for aromatic alkylation. The catalyst may also be treated to further increase its stability. This is accomplished by heating the hydrogenating metal loaded zeolite catalyst in the presence of a reducing agent prior to use in an aromatic alkylation reaction to a temperature of from about 400° C. to about 500 ° C. for about 0.5 to about 10 hours.
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P.G. Smir
Ghosh Ashim Kumar
Harvey Pamela
Juttu Gopalakrishnan
Bergen Grady K.
Saudi Basic Industries Corporation
Wheelington Jim D.
Wood Elizabeth D.
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