Catalyst for the orthomethylation of phenols

Details Catalyst for the orthomethylation of phenols Catalyst for the orthomethylation of phenols

1986-08-29

1988-01-19

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502304, 502306, 502316, B01J 2310, B01J 2378, B01J 2384, B01J 2388

Patent

active

047204788

ABSTRACT:
A process and catalyst for the orthomethylation of phenols having at least one free ortho position, wherein the phenols are reacted with methanol in a molar ratio of about 1:1 to 1:10 at about 270.degree.-340.degree. C. in the gaseous phase under a pressure of about 1-4 bar absolute and with rates per unit volume (LHSV) of about 0.05-3 h.sup.-1 in the presence of an iron oxide catalyst. This catalyst consists essentially of (a) iron oxide, (b) molybdenum oxide or tungsten oxide and (c) one or several oxides of the elements magnesium, calcium, barium, lanthanum, cerium or manganese in a metal-atomic ratio of about (a):(b):(c):of 100:0.2-10:0.2-10.

REFERENCES:
patent: 3716497 (1973-02-01), Courty
patent: 4590306 (1986-05-01), Korff et al.
European Search Report.

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