Disproportionation of toluene

Details Disproportionation of toluene Disproportionation of toluene

1975-08-22

1977-04-05

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 362

Patent

active

040162192

ABSTRACT:
Disproportionation of toluene to produce benzene and xylenes rich in the para isomer is accomplished by subjecting toluene to disproportionation conditions in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, 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, said catalyst having been modified by the addition thereto of phosphorus in an amount of at least about 0.5 percent by weight.

REFERENCES:
patent: 3417157 (1968-12-01), Pollitzer
patent: 3551510 (1970-12-01), Pollitzer et al.
patent: 3651162 (1972-03-01), Pohlmann et al.
patent: 3790471 (1974-02-01), Argauer et al.
patent: 3808284 (1974-04-01), Wallace et al.

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