Process for recovering 2,2-bis(4-hydroxyphenyl)propane from distillation residues from the preparation thereof

摘要

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.