Selective production of para-xylene and catalyst therefor

Details Selective production of para-xylene and catalyst therefor Selective production of para-xylene and catalyst therefor

1975-01-06

1976-06-22

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252430, 242455Z, 260671C, 260671R, 208DIG2, C07C 352, C07C 1508

Patent

active

039652106

ABSTRACT:
Catalyst of 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, the surface of which catalyst has been modified by contact with a polymer made up of meta-carborane units connected by siloxane units and process for the selective production of para-xylene by methylation of toluene in the presence of said catalyst.

REFERENCES:
patent: 3036980 (1962-05-01), Dunham et al.
patent: 3254034 (1966-05-01), Dwyer et al.
patent: 3277018 (1966-10-01), Plank et al.
patent: 3398177 (1968-08-01), Stewart
patent: 3484428 (1969-12-01), Kallenbach
patent: 3682996 (1972-08-01), Kerr
patent: 3725302 (1973-04-01), Shively et al.
patent: 3751506 (1973-08-01), Burress

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