Catalyst and method for ortho-alkylation of hydroxyaromatic comp

Details Catalyst and method for ortho-alkylation of hydroxyaromatic comp Catalyst and method for ortho-alkylation of hydroxyaromatic comp

1983-06-03

1985-11-19

Lone, Werren B.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502344, 502345, 568794, 568804, B01J 2376, C07C 3716

Patent

active

045542678

ABSTRACT:
Hydroxyaromatic compounds such as phenol are alkylated with alkanols such as methanol in the presence of a catalyst comprising magnesium oxide with up to about 0.1% by weight of copper deposited thereon in a layer of submicroscopic thickness. The catalyst is prepared by preparing a slurry of a substantially water-insoluble magnesium reagent such as magnesium hydroxide or magnesium carbonate in an aqueous solution of at least one copper salt, removing and drying the solid phase, and calcining the same at a temperature within the range of about 350.degree.-550.degree. C. The catalyst promotes ortho-alkylation of the hydroxyaromatic compound in high yield, minimizes decomposition of the alkanol, and has long life.

REFERENCES:
patent: 1500794 (1924-07-01), Bouvier et al.
patent: 1913774 (1933-06-01), Seib
patent: 2524566 (1950-10-01), Houtman et al.
patent: 3304268 (1967-02-01), Lester et al.
patent: 3446856 (1969-05-01), Hamilton
patent: 4165539 (1979-08-01), Smith
patent: 4201880 (1980-05-01), van Sorge

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