Process for selectively producing para-xylene

Details Process for selectively producing para-xylene Process for selectively producing para-xylene

1980-06-09

1984-02-21

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585467, C07C 268

Patent

active

044331878

ABSTRACT:
Para-xylene is selectively prepared by reacting toluene and a methylating agent in the presence of a phosphorus modified catalyst comprising a silica polymorph intermixed with an inorganic refractory oxide, said catalyst having an alkali content of less than about 1.3 milliequivalents per gram as available alkali.

REFERENCES:
patent: 3941871 (1976-03-01), Dwyer et al.
patent: 4002698 (1977-01-01), Kaeding
patent: 4025572 (1977-05-01), Lago
patent: 4038211 (1977-07-01), Frampton
patent: 4061724 (1977-12-01), Grose et al.
patent: 4064070 (1977-12-01), Harrison
patent: 4073865 (1978-02-01), Flanigen et al.

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