Crystalline silica catalysts

Details Crystalline silica catalysts Crystalline silica catalysts

1982-12-06

1985-05-21

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 80, 502214, 502232, 502242, 502244, 502250, 502251, 502256, 502262, 502263, B01J 2106, B01J 2116, B01J 2700

Patent

active

045187037

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.

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