Process for preparing bisphenol A (BPA) in presence of alpha-methylstyrene

The present invention relates to a process for the preparation of bisphenol A in the presence of alpha-methylstyrene that does not poisoning a catalyst system comprising an ion exchange resin catalyst and a sulfur-containing co-catalyst. In addition, the invention provides a method for preparing the polycarbonate. 本发明涉及一种在α-甲基苯乙烯存在下制备双酚A的方法，该α-甲基苯乙烯不会使包含离子交换树脂催化剂和含硫助催化剂的催化剂体系中毒。此外，本发明提供了一种制备聚碳酸酯的方法。