Method for alkylation of phenols, and catalyst therefor

Details Method for alkylation of phenols, and catalyst therefor Method for alkylation of phenols, and catalyst therefor

1990-08-21

1991-10-22

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568790, 568791, 568794, C07C 3716

Patent

active

050597272

ABSTRACT:
A method of alkylating phenols which comprises reacting phenols having a hydrogen atom in at least one of the ortho-positions with regard to the hydroxyl group with an alcohol in a gaseous phase under heat in the presence of a catalyst comprising iron oxide, silica, chromium oxide, germanium oxide and an alkali metal compound. The catalyst exhibits a long catalytic activity duration and decreases frequency of regeneration and replacement of catalysts.

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patent: 4359591 (1982-11-01), Fremery et al.
patent: 4400557 (1983-08-01), Fremery et al.
patent: 4406824 (1983-09-01), Fremery et al.
patent: 4429171 (1984-01-01), Sakurai et al.
patent: 4590306 (1986-05-01), Korff et al.

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