Start-up of bisphenol A production over sulfonated crosslinked polystyrene resin uses higher phenol concentration and lower acetone concentration and throughput than in optimum long-term operation

摘要

Bisphenol A production by reacting phenol with acetone in the presence of sulfonated crosslinked polystyrene resin comprises: (a) using higher phenol and lower acetone concentration and throughput than in optimum long-term operation and (b) increasing the educt and acetone content of the feed in stages or continuously, with temperature control, until the long-term operation state is reached. Start-up of bisphenol A production by reacting phenol with acetone in the presence of sulfonated crosslinked polystyrene resin comprises: (a) using higher phenol concentration and lower acetone concentration and throughput than in optimum long-term operation and (b) increasing the amount of educts and acetone content of the feed in stages or continuously, with temperature control, until the long-term operation state is reached.