Methylation of toluene

Details Methylation of toluene Methylation of toluene

1975-01-06

1976-06-22

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

208DIG2, 260671C, 260671R, C07C 352, C07C 1508

Patent

active

039652084

ABSTRACT:
Process for the methylation of toluene under conditions such that the formation of meta-xylene is suppressed and the formation of ortho and para-xylene is enhanced carried out 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, of from 1 to 12, said catalyst having been modified by the addition thereto of a Group VA element in an amount of at least 0.5 percent by weight.

REFERENCES:
patent: 3277018 (1966-10-01), Plank et al.
patent: 3367884 (1968-02-01), Reid
patent: 3437587 (1969-04-01), Ellert et al.
patent: 3527824 (1970-09-01), Pollitzer
patent: 3575845 (1971-04-01), Miale
patent: 3728408 (1973-04-01), Tobias
patent: 3751506 (1973-08-01), Burress
patent: 3755483 (1973-08-01), Burress

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