Zeolite catalyst for the alkylation of aromatic compounds...

Details Zeolite catalyst for the alkylation of aromatic compounds... Zeolite catalyst for the alkylation of aromatic compounds...

2005-01-11

2008-10-21

Dang, Thuan Dinh (Department: 1797)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

Reexamination Certificate

active

07439411

ABSTRACT:
The invention relates to a method of preparing an alkylated aromatic compound. The inventive method is characterized in that it comprises an alkylation reaction of an aromatic compound with an alkylating agent which is selected from an olefin, an alcohol and a polyalkylated aromatic compound, in the presence of a catalyst which is a porous crystalline material with the following chemical composition in the calcined form: X2O3:n YO2:m ZO2, wherein (n+m) is at least 5, X is at least a trivalent element, Z is Ge, Y is at least a tetravalent element different from Ge and the n/m ratio is at least 1. Said method is particularly suitable for obtaining cumene.

REFERENCES:
patent: 4292457 (1981-09-01), Klotz
patent: 4891458 (1990-01-01), Innes et al.
patent: 5030785 (1991-07-01), Huss, Jr. et al.
patent: 2 192 935 (2001-05-01), None
patent: 2 195 744 (2001-10-01), None

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