PROCESS FOR PRODUCING HIGH-QUALITY GRANULAR BISPHENOL A

摘要

A process for producing high-quality granular bisphenol A is provided. In the process, granular bisphenol A (2,2-bis(4-hydroxyphenyl)propane) is contacted to a metal-scavenging apparatus placed in a granulation step or a subsequent step thereof so as to remove efficiently from granular bisphenol A metal powder that have come into the bisphenol Ain a granulation step or a subsequent step thereof or that have resulted from regular or irregular overhaul inspection or repairing of various devices in the a production apparatus.