Toluene disproportionation catalyzed by a zeolite containing fra

Details Toluene disproportionation catalyzed by a zeolite containing fra Toluene disproportionation catalyzed by a zeolite containing fra

1988-12-05

1990-05-01

Garvin, Patrick P.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By alkyl or aryl transfer between molecules, e.g.,...

C07C 612

Patent

active

049220551

ABSTRACT:
Disproportionation of toluene with high conversion thereof to produce benzene and xylenes is accomplished by subjecting toluene to disproportionation conditions in the presence of a catalyst comprising a crystalline silicate or crystalline aluminosilicate zeolite containing framework gallium, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12.

REFERENCES:
patent: 3702886 (1972-11-01), Argauer et al.
patent: 4160788 (1979-07-01), Young
patent: 4180689 (1979-12-01), Davies et al.
patent: 4182923 (1980-01-01), Chu
patent: 4456780 (1984-06-01), Young
Oil and Gas Journal, vol. 69, No. 48 (1971), by Grandio et al., "AP-Catalyst Processes Make-Aromatics at Low Temperatures".

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