Process for purifying crude tetrabromobisphenol sulfone by extra

Details Process for purifying crude tetrabromobisphenol sulfone by extra Process for purifying crude tetrabromobisphenol sulfone by extra

1989-12-19

1991-04-16

Lone, Werren B.

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

Organic compounds

Sulfur containing

568 33, 568724, C07C31506

Patent

active

050084585

ABSTRACT:
Crude tetrabromobisphenol S compositions can be purified by extracting impurities therefrom with a quantity of organic solvent which is insufficient to substantially dissolve the tetrabromobisphenol S, followed by the removal of the tetrabromobisphenol compound from the solvent.

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Sato et al "Chemical Abstracts," vol. 92 (1980) 11064b.
Hooker Chemical "Derwent Belgian Patent Report" Vol. 61, A, p. A12 Jan. 31, 1960.

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