Y zeolite catalyst

Details Y zeolite catalyst Y zeolite catalyst

1990-10-26

1991-06-25

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

C07G 268

Patent

active

050269410

ABSTRACT:
A catalyst comprising a Y zeolite of which silica/alumina molar ratio ranges from 15 to 110, use of this catalyst for alkylation of monoisopropylnaphthalene and a method for preparation of this catalyst comprising treating a Y zeolite with an acid(s) to adjust the silica/alumina molar ratio to 15 to 110 are disclosed. A method for preparation of mono and/or diisopropylnaphthalenes comprising reacting naphthalene and/or monoisopropylnaphthalene with propylene in the presence of at least one saturated polycarbocyclic compounds and a catalyst comprising a Y zeolite having the silica/alumina molar ratio of from 10 to 350 are disclosed. This catalyst makes possible the production of .beta.-monoisopropylnaphthalene in good yield by alkylation of naphthalene and the production of .beta.-monoisopropylnaphthalene and/or 2,6- and 2,7-diisopropylnaphthalenes in good yield by alkylation of naphthalene and/or monoisopropylnaphthalene in good percent conversion.

REFERENCES:
patent: 3897327 (1975-07-01), Ward
patent: 4026959 (1977-05-01), Kemme et al.
patent: 4836911 (1989-06-01), Skeels et al.
Forni et al. Ind. Eng. Chem. Res. 1987, 26, 1860-1864.

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