Process for the production of p-tert-octyl phenol by catalytic a

Details Process for the production of p-tert-octyl phenol by catalytic a Process for the production of p-tert-octyl phenol by catalytic a

1982-12-29

1984-07-24

Lone, Werren B.

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

Organic compounds

Oxygen containing

568785, 568793, C07C 3714

Patent

active

044619162

ABSTRACT:
p-tert-octyl phenol is produced by reaction of phenol with diisobutene in the presence of an acidic ion exchanger and water, in a first stage, in a solid-bed reactor at temperatures of 110.degree.-140.degree. C. and under an excess pressure of up to 5 bar. The resultant dioctyl phenol formed as a by-product is alkylated in a second stage in a further solid-bed reactor with phenol in the presence of an acidic ion exchanger, and water at temperatures of 110.degree.-140.degree. C. and under an excess pressure of up to 5 bar to obtain additional p-tert-octyl phenol.

REFERENCES:
patent: 1987228 (1935-01-01), Brunson
patent: 3422157 (1969-01-01), Kaufman et al.
patent: 4152531 (1979-05-01), Hollingshead
patent: 4168390 (1979-09-01), Alfs et al.
patent: 4198531 (1980-04-01), Merger et al.
patent: 4236033 (1980-11-01), Alfs et al.
Widdecke: Ion Exchanges as Polymeric Catalysts for the Alkylation of Aromatics, Dissertation 1978, Technical College, Braunschweig, p. 131.

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