公开(公告)号：US20160159716A1

公开(公告)日：2016-06-09

申请号：US14904028

申请日：2014-07-11

Applicant: LG CHEM, LTD.

Inventor： Jong Suh PARK ,  Joon ho SHIN ,  Tae Woo KIM ,  Jong Ku LEE ,  Se Ho PARK

IPC: C07C37/68 ,  B01J19/24 ,  C07C37/76 ,  C07C37/82 ,  C07C37/20 ,  C07C37/84

CPC classification number: C07C37/685 ,  B01J19/24 ,  B01J2219/00103 ,  B01J2219/24 ,  C07B63/00 ,  C07C37/20 ,  C07C37/74 ,  C07C37/76 ,  C07C37/82 ,  C07C37/84 ,  C07C39/16

Abstract: Provided are an apparatus and a method for preparing bisphenol A. In the present invention, all or some of a mother liquid stream is circulated to a flash rector through a bypass line after crystallization in a process of preparing bisphenol A so as to increase a conversion rate of bisphenol A in a reactor, reduce energy, and use a heating source of phenol to be discharged to an upper side of the flash reactor, and thus the reaction efficiency of the whole process can be increased.

Abstract translation: 提供了制备双酚A的装置和方法。在本发明中，在制备双酚A的过程中，通过旁路管将全部或一些母液流通过旁路管路循环，以增加转化率 双酚A在反应器中的速率降低，能够使用苯酚的加热源排出到反应器的上侧，能够提高整个反应的反应效率。