Process for the isolation of pentabromophenol

Details Process for the isolation of pentabromophenol Process for the isolation of pentabromophenol

1978-02-13

1979-07-03

Lone, Werren B.

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

Organic compounds

Oxygen containing

568776, C07C 3738, C07C 3924

Patent

active

041601122

ABSTRACT:
A process for isolating crude pentabromophenol containing occluded bromine and hydrogen bromide as impurities comprising the steps of contacting the crude pentabromophenol with a strong acid such as hydrobromic acid, sulfuric acid, hydrochloric acid and phosphoric acid; heating the mixture in order to remove excess bromine; and recovering of the pentabromophenol, whereby formation of carbonyl-group-containing impurities during isolation is minimized.

REFERENCES:
patent: 3051761 (1962-08-01), MacBeth
patent: 3839463 (1974-10-01), Cohn

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