Methanol conversion to para-xylene using a zeolite catalyst cont

Details Methanol conversion to para-xylene using a zeolite catalyst cont Methanol conversion to para-xylene using a zeolite catalyst cont

1977-05-27

1978-05-09

O'Keefe, Veronica

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252455Z, 260677R, 260681, 260682, C07C 120

Patent

active

040887065

ABSTRACT:
A catalytic process is provided for converting lower monohydric alcohols and their ethers, especially methanol and dimethyl ethers, to a hydrocarbon mixture rich in C.sub.2 -C.sub.3 olefins and mononuclear aromatics with high selectivity for para-xylene production by contact, under conversion conditions, with 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 a minor proportion of an oxide of boron or magnesium either alone or in combination, or in further combination with an oxide of phosphorus.

REFERENCES:
patent: 3728408 (1973-04-01), Tobias
patent: 3894104 (1975-07-01), Chang et al.
patent: 4007231 (1977-02-01), Butler

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