Process for recovering 2,2-bis(4-hydroxyphenyl)propane from dist

Details Process for recovering 2,2-bis(4-hydroxyphenyl)propane from dist Process for recovering 2,2-bis(4-hydroxyphenyl)propane from dist

1977-12-23

1979-12-25

Morgenstern, Norman

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

Organic compounds

Oxygen containing

568728, C07C 3744, C07C 3738

Patent

active

041806832

ABSTRACT:
A process is disclosed for the recovery of 2,2-bis(4-hydroxyphenyl)propane, herein referred to as bisphenol-A, from residues remaining after purification distillation of bisphenol-A produced from a condensation reaction of phenol and acetone. The process comprises mixing the residues with phenol in the absence of acidic reagents to precipitate a bisphenol-A-phenol crystalline adduct and recovering bisphenol-A from the separated adduct.

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