Selective production of para-xylene

Details Selective production of para-xylene Selective production of para-xylene

1975-12-08

1977-06-14

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 362, C07C 1508

Patent

active

040297160

ABSTRACT:
A catalytic process is provided for the selective production of para-xylene by contacting, under conversion conditions, a charge stock containing, as a major reactant, at least one hydrocarbon selected from the group consisting of toluene, a C.sub.3 -C.sub.10 olefin and mixtures of the foregoing with a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and having combined therewith boron in an amount of at least about 0.2 percent by weight.

REFERENCES:
patent: 3763260 (1973-10-01), Pollitzer
patent: 3790471 (1974-02-01), Argauer et al.
patent: 3926782 (1975-12-01), Plank et al.

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