公开(公告)号：ID1014B

公开(公告)日：1996-10-16

申请号：ID893516

申请日：1989-09-04

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DR ,  LOROSCH JURGEN DR ,  GOS STEVEN ,  STOLL MATHIAS ,  ZIEGLER ANNETTE

IPC: C22B11/08 ,  C22B11/04

公开(公告)号：DE58904265D1

公开(公告)日：1993-06-09

申请号：DE58904265

申请日：1989-08-16

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DR ,  LOROESCH JUERGEN DR ,  GOS STEVEN ,  STOLL MATTHIAS ,  ZIEGLER ANNETTE

IPC: C22B11/08

公开(公告)号：ZA896609B

公开(公告)日：1990-06-27

申请号：ZA896609

申请日：1989-08-29

Applicant: DEGUSSA

Inventor： KNORRE HELMUT ,  HELMUT KNORRE ,  LOROSCH JURGEN ,  JURGEN LOROSCH ,  GOS STEVEN ,  STEVEN GOS ,  STOLL MATHIAS ,  MATHIAS STOLL ,  ZIEGLER ANNETTE ,  ANNETTE ZIEGLER

IPC: C22B11/08 ,  C22B

公开(公告)号：NZ230544A

公开(公告)日：1990-09-26

申请号：NZ23054489

申请日：1989-09-04

Applicant: DEGUSSA

Inventor： KNORRE HELMUT ,  LOROSCH JURGEN ,  GOS STEVEN ,  STOLL MATHIAS ,  ZIEGLER ANNETTE

IPC: C22B11/08

公开(公告)号：AU614420B2

公开(公告)日：1991-08-29

申请号：AU4119389

申请日：1989-09-08

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DR ,  ZIEGLER ANNETTE ,  STOLL MATHIAS ,  GOS STEVEN ,  LOROSCH JURGEN DR

IPC: C22B11/08 ,  C22B7/00

公开(公告)号：ZA8906609B

公开(公告)日：1990-06-27

申请号：ZA8906609

申请日：1989-08-29

Applicant: DEGUSSA

Inventor： KNORRE HELMUT ,  HELMUT KNORRE ,  LOROSCH JURGEN ,  JURGEN LOROSCH ,  GOS STEVEN ,  STEVEN GOS ,  STOLL MATHIAS ,  MATHIAS STOLL ,  ZIEGLER ANNETTE ,  ANNETTE ZIEGLER

IPC: C22B11/08 ,  C22B

CPC classification number: C22B11/08

公开(公告)号：CA1332110C

公开(公告)日：1994-09-27

申请号：CA610737

申请日：1989-09-08

Applicant: DEGUSSA

Inventor： KNORRE HELMUT ,  LOROESCH JUERGEN ,  GOS STEVEN ,  STOLL MATHIAS ,  ZIEGLER ANNETTE

IPC: C22B11/08

Abstract: A process for leaching gold and silver from ores and ore concentrates is disclosed using a cyanide leaching solution and hydrogen peroxide and maintaining an oxygen concentration of 2 to 20 Mg of O2/liter. In the invention, leaching takes place in the presence of decomposition catalysts and preferably the formed cyano-complexes are separated during leaching from the leach solution. Decomposition catalysts are manganese compounds, present as 0.01 to 1 mg computed as Mn/liter of barren solution, or 1 to 50 mg computed as Mn per kg of ore slurry, or they are inorganic or organic polymers or carbon. Activated charcoal is preferred and simultaneously adsorbing cyano-complexes of precious metals. The process offers lowered consumption of H2O2 and possibly cyanide and maximum gold yield in a shortened leaching time.

公开(公告)号：ES2054954T3

公开(公告)日：1994-08-16

申请号：ES89115067

申请日：1989-08-16

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DR ,  LOROSCH JURGEN DR ,  GOS STEVEN ,  STOLL MATTHIAS ,  ZIEGLER ANNETTE

IPC: C22B11/08