Silica-containing catalysts

Details Silica-containing catalysts Silica-containing catalysts

1983-12-05

1986-01-21

Dees, Carl F.

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

Catalyst or precursor therefor

Phosphorus or compound containing same

502244, 502256, 502259, 502262, 502263, B01J 2782, B01J 2108

Patent

active

045658021

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: 4061724 (1977-12-01), Grose et al.
patent: 4124491 (1978-11-01), Antos et al.
patent: 4137153 (1979-01-01), Antos
patent: 4283306 (1981-11-01), Herkes
patent: 4309276 (1982-01-01), Miller
patent: 4362653 (1982-12-01), Robinson
patent: 4518703 (1985-05-01), Young
"Catapal.RTM. Aluminas--Aluminas for Catalysis", Continental Oil Company, 1971.

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