PRPARATION OF BISPHENOL A

摘要

PURPOSE:To obtain the titled compound, by treating a raw phenol by a specific method to prevent the deterioration of a catalytic activity previously, and reacting the treated phenol with acetone in the presence of a sulfonic acid type cation exchange resin catalyst modified with a compound having a mercapto group. CONSTITUTION:Phenol is reacted with acetone in the presence of a catalyst consisting of a sulfonic acid type cation exchange resin modified wih a compound having a mercapto group, e.g. a mercaptoalkylamine, to prepare bisphenol A. In the process, the phenol to be used as a raw material to previously brought into contact with the sulfonic acid type cation exchange resin preferably at 50-100 deg.C for 0.2-10hr at a space velocity of 1-10hr<-1>. EFFECT:The catalytic life can be prolonged.