Method for purification of bisphenol A

Details Method for purification of bisphenol A Method for purification of bisphenol A

1983-04-22

1985-01-08

Lone, Werren B.

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

Organic compounds

Oxygen containing

568730, C07C 3770

Patent

active

044928076

ABSTRACT:
Bisphenol A is commonly purified by a method which includes formation of an adduct thereof with phenol from a liquid mixture to which water has been added. This method is improved by the simultaneous addition of an organic liquid in an amount up to about 15% by weight of the mixture. The preferred organic liquids are acetone and toluene.

REFERENCES:
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patent: 3919330 (1975-11-01), Kwantes et al.
patent: 3972950 (1976-08-01), Kwantes
patent: 4192955 (1980-03-01), Renitz
patent: 4209646 (1980-06-01), Gac et al.
patent: 4294993 (1981-10-01), Li
patent: 4300000 (1981-11-01), Reinitz
patent: 4320234 (1982-03-01), Mark
patent: 4414422 (1983-11-01), Ash et al.

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