公开(公告)号：CA1332475C

公开(公告)日：1994-10-11

申请号：CA608635

申请日：1989-08-17

Applicant: DEGUSSA

Inventor： GRIFFITHS ANDREW ,  NORCROSS ROY ,  SCHERER GERHARD ,  MERZ FRIEDRICH W ,  GOS STEPHEN

IPC: C02F1/52 ,  C02F1/72

Abstract: A process for the treatment of aqueous effluent containing cyanide and toxic heavy metals, wherein the effluent is contacted with a sufficient amount of hydrogen peroxide to oxidize at least a substantial portion of the cyanide in the effluent in the presence of sufficient trimercaptotriazine to react with a substantial portion of the metal present in said effluent, and precipitating said metal component.

公开(公告)号：AU1383292A

公开(公告)日：1992-10-01

申请号：AU1383292

申请日：1992-03-26

Applicant: DEGUSSA

Inventor： STEINER NORBERT ,  GOS STEPHEN ,  LADWIG FRANK ,  DIEHL MANFRED

IPC: C02F1/58 ,  C02F1/72 ,  C02F9/00

Abstract: The invention relates to a process for detoxifying cyanide- and/or cyanocomplex-containing aqueous solutions in the presence of heavy metals from the series consisting of Mn, Co, Ni, Cu, Cd, Zn, in particular Cu, by oxidative treatment of the solutions with a peroxide compound at pHs of 8 to 12, the peroxide compound used being an alkali metal percarbonate. The alkali metal percarbonate, preferably 2 Na2CO3 . 3 H2O2, is preferably added in solid form to the solutions to be detoxified. The process according to the invention, with respect to the use of peroxide compound, is significantly more effective than the previously known process using hydrogen peroxide.

公开(公告)号：AU605992B2

公开(公告)日：1991-01-24

申请号：AU3903789

申请日：1989-07-27

Applicant: DEGUSSA

Inventor： GOS STEPHEN ,  MERZ FRIEDRICH WILHELM ,  SCHERER GERHARD ,  NORCROSS ROY ,  GRIFFITHS ANDREW

IPC: C02F1/52 ,  C02F1/72

公开(公告)号：ZA922216B

公开(公告)日：1992-12-30

申请号：ZA922216

申请日：1992-03-26

Applicant: DEGUSSA

Inventor： STEINER NORBERT ,  NORBERT STEINER ,  GOS STEPHEN ,  STEPHEN GOS ,  LADWIG FRANK ,  FRANK LADWIG ,  DIEHL MANFRED ,  MANFRED DIEHL

IPC: C02F1/58 ,  C02F1/72 ,  C02F9/00 ,  C02F ,  C01B

Abstract: The invention relates to a process for detoxifying cyanide- and/or cyanocomplex-containing aqueous solutions in the presence of heavy metals from the series consisting of Mn, Co, Ni, Cu, Cd, Zn, in particular Cu, by oxidative treatment of the solutions with a peroxide compound at pHs of 8 to 12, the peroxide compound used being an alkali metal percarbonate. The alkali metal percarbonate, preferably 2 Na2CO3 . 3 H2O2, is preferably added in solid form to the solutions to be detoxified. The process according to the invention, with respect to the use of peroxide compound, is significantly more effective than the previously known process using hydrogen peroxide.

公开(公告)号：ZA895549B

公开(公告)日：1990-07-25

申请号：ZA895549

申请日：1989-07-20

Applicant: DEGUSSA

Inventor： GRIFFITHS ANDREW ,  ANDREW GRIFFITHS ,  NORCROSS ROY ,  ROY NORCROSS ,  SCHERER GERHARD ,  GERHARD SCHERER ,  MERZ FRIEDRICH WILHELM ,  FRIEDRICH WILHELM MERZ ,  GOS STEPHEN ,  STEPHEN GOS

IPC: C02F1/52 ,  C02F1/72 ,  C02F

公开(公告)号：ZA8905549B

公开(公告)日：1990-07-25

申请号：ZA8905549

申请日：1989-07-20

Applicant: DEGUSSA

Inventor： GRIFFITHS ANDREW ,  ANDREW GRIFFITHS ,  NORCROSS ROY ,  ROY NORCROSS ,  SCHERER GERHARD ,  GERHARD SCHERER ,  MERZ FRIEDRICH WILHELM ,  FRIEDRICH WILHELM MERZ ,  GOS STEPHEN ,  STEPHEN GOS

IPC: C02F1/52 ,  C02F1/72 ,  C02F

CPC classification number: C02F1/722 ,  C02F1/5272 ,  C02F2101/20 ,  Y10S210/904 ,  Y10S210/912

公开(公告)号：AT110043T

公开(公告)日：1994-09-15

申请号：AT92103208

申请日：1992-02-26

Applicant: DEGUSSA

Inventor： STEINER NORBERT DR ,  GOS STEPHEN ,  LADWIG FRANK ,  DIEHL MANFRED DR

IPC: C02F1/58 ,  C02F1/72 ,  C02F9/00

Abstract: The invention relates to a process for detoxifying cyanide- and/or cyanocomplex-containing aqueous solutions in the presence of heavy metals from the series consisting of Mn, Co, Ni, Cu, Cd, Zn, in particular Cu, by oxidative treatment of the solutions with a peroxide compound at pHs of 8 to 12, the peroxide compound used being an alkali metal percarbonate. The alkali metal percarbonate, preferably 2 Na2CO3 . 3 H2O2, is preferably added in solid form to the solutions to be detoxified. The process according to the invention, with respect to the use of peroxide compound, is significantly more effective than the previously known process using hydrogen peroxide.

公开(公告)号：ZA9202216B

公开(公告)日：1992-12-30

申请号：ZA9202216

申请日：1992-03-26

Applicant: DEGUSSA

Inventor： STEINER NORBERT ,  NORBERT STEINER ,  GOS STEPHEN ,  STEPHEN GOS ,  LADWIG FRANK ,  FRANK LADWIG ,  DIEHL MANFRED ,  MANFRED DIEHL

IPC: C02F1/58 ,  C02F1/72 ,  C02F9/00 ,  C02F ,  C01B

CPC classification number: C02F1/722 ,  C02F2101/18 ,  Y10S210/904

公开(公告)号：GR3002252T3

公开(公告)日：1992-12-30

申请号：GR910400847

申请日：1991-07-04

Applicant: DEGUSSA

Inventor： GRIFFITHS ANDREW DR ,  NORCROSS ROY ,  SCHERER GERHARD ,  MERZ FRIEDRICH WILHELM ,  GOS STEPHEN

IPC: C02F1/52 ,  C02F1/72

公开(公告)号：BR9201034A

公开(公告)日：1992-11-24

申请号：BR9201034

申请日：1992-03-25

Applicant: DEGUSSA

Inventor： STEINER NORBERT DR ,  GOS STEPHEN

IPC: C02F1/58 ,  C02F1/72 ,  C02F9/00 ,  C01B15/12 ,  C01B15/10 ,  C01B15/043

Abstract: The invention relates to a process for detoxifying cyanide- and/or cyanocomplex-containing aqueous solutions in the presence of heavy metals from the series consisting of Mn, Co, Ni, Cu, Cd, Zn, in particular Cu, by oxidative treatment of the solutions with a peroxide compound at pHs of 8 to 12, the peroxide compound used being an alkali metal percarbonate. The alkali metal percarbonate, preferably 2 Na2CO3 . 3 H2O2, is preferably added in solid form to the solutions to be detoxified. The process according to the invention, with respect to the use of peroxide compound, is significantly more effective than the previously known process using hydrogen peroxide.