公开(公告)号：US3544490A

公开(公告)日：1970-12-01

申请号：US3544490D

申请日：1967-01-04

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： ALEXANDER RICHARD L ,  ASHBURN DONALD G ,  CLAMPITT BERT H ,  ANSPON HARRY D

IPC: C08F255/02 ,  C08J9/10 ,  C08F47/10 ,  C08J1/20

CPC classification number: C08J9/103 ,  C08F255/02 ,  C08J2323/04

公开(公告)号：US3565608A

公开(公告)日：1971-02-23

申请号：US3565608D

申请日：1968-11-12

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： ANSPON HARRY D ,  ASHBURN DONALD G ,  CLAMPITT BERT H ,  GILBERT RONALD E

IPC: C01G7/00 ,  C22B11/00 ,  C22B11/04

CPC classification number: C01G7/003 ,  C22B3/24 ,  Y02P10/234

Abstract: A METHOD IS PROVIDED IN WHICH GOLD IS RECOVERED FROM DILUTE AQUEOUS SOLUTIONS THEREOF BY CONTACTING SUCH SOLUTIONS WITH A WATER-INSOLUBLE ETHYLENE POLYMER CONTAINING CARBOXYLATE AND/OR AMIDE GROUPS. THE GOLD BECOMES ASSOCIATED WITH THE CARBOXYLATE AND/OR AMIDE GROUPS OF THE POLYMER AND CAN BE RECOVERED BY BURNING THE POLYMER TO RECOVER AN ASH ENRICHED IN GOLD.