公开(公告)号：WO2022203986A1

公开(公告)日：2022-09-29

申请号：PCT/US2022/021082

申请日：2022-03-21

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： LIU, Yujun ,  CHEN, Xue ,  KING, Stephen W. ,  HASAN, Towhid ,  RUDDICK, Jerrod ,  YORK, James ,  SINGH, Amarnath

IPC: B01D15/02 ,  B01D15/08 ,  B01D15/18 ,  B01D15/20 ,  B01D15/36 ,  B01J20/10 ,  B01J20/26

Abstract: The present invention describes a method to remove metals present in a mixture comprising one or more organic amines comprising the step of contacting the mixture with a silica-polyethyleneimine adsorbent.