公开(公告)号：US20240066499A1

公开(公告)日：2024-02-29

申请号：US18260872

申请日：2022-03-21

Applicant: Dow Global Technologies LLC

Inventor： Yujun Liu ,  Xue Chen ,  Stephen W. King ,  Towhid Hasan ,  Jerrod Ruddick ,  James York ,  Amarnath Singh

IPC: B01J20/26 ,  B01J20/10 ,  B01J20/281 ,  B01J20/34

CPC classification number: B01J20/262 ,  B01J20/103 ,  B01J20/281 ,  B01J20/34 ,  B01J2220/56 ,  B01J2220/60

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.