Process for the synthesis of bisphenol

摘要

A process for the production of a bisphenol comprises reacting a feed comprising a phenol, a ketone and water in the presence of an ion exchange resin catalyst to produce an effluent; determining the para-para bisphenol selectivity of the reaction; and adjusting the concentration of the water in the feed based upon the para-para bisphenol selectivity in the effluent.