NZ230544A - Process for leaching gold and silver from ores using cyanide and hydrogen peroxide - Google Patents

Process for leaching gold and silver from ores using cyanide and hydrogen peroxide

Info

Publication number
NZ230544A
NZ230544A NZ230544A NZ23054489A NZ230544A NZ 230544 A NZ230544 A NZ 230544A NZ 230544 A NZ230544 A NZ 230544A NZ 23054489 A NZ23054489 A NZ 23054489A NZ 230544 A NZ230544 A NZ 230544A
Authority
NZ
New Zealand
Prior art keywords
ores
cyanide
silver
hydrogen peroxide
leaching gold
Prior art date
Application number
NZ230544A
Inventor
Helmut Knorre
Jurgen Lorosch
Steven Gos
Mathias Stoll
Annette Ziegler
Original Assignee
Degussa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Degussa filed Critical Degussa
Publication of NZ230544A publication Critical patent/NZ230544A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/08—Obtaining noble metals by cyaniding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Catalysts (AREA)
NZ230544A 1988-09-09 1989-09-04 Process for leaching gold and silver from ores using cyanide and hydrogen peroxide NZ230544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3830703A DE3830703C1 (en) 1988-09-09 1988-09-09

Publications (1)

Publication Number Publication Date
NZ230544A true NZ230544A (en) 1990-09-26

Family

ID=6362627

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ230544A NZ230544A (en) 1988-09-09 1989-09-04 Process for leaching gold and silver from ores using cyanide and hydrogen peroxide

Country Status (9)

Country Link
EP (1) EP0358004B1 (en)
AU (1) AU614420B2 (en)
CA (1) CA1332110C (en)
DE (2) DE3830703C1 (en)
ES (1) ES2054954T3 (en)
ID (1) ID1014B (en)
NZ (1) NZ230544A (en)
ZA (1) ZA896609B (en)
ZW (1) ZW10589A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262136A (en) * 1989-04-28 1993-11-16 Cra Services Limited Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides
AU627577B2 (en) * 1989-04-28 1992-08-27 Cra Services Limited Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides
DE4017899C1 (en) * 1990-06-02 1991-11-14 Degussa Ag, 6000 Frankfurt, De Extn. of silver and gold from ores - by contacting ore with aq. leaching soln. contg. cyanide in presence of peroxo:borate, and sepg. cyano complexes formed
DE4323251A1 (en) * 1993-07-12 1995-01-19 Degussa Method and apparatus for continuously determining the concentration of hydrogen peroxide and oxidizing agents therefor
CA2171715C (en) * 1993-10-21 2007-01-09 Sigridur Soley Kristjansdottir Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds
US5484470A (en) * 1994-07-28 1996-01-16 E. I. Du Pont De Nemours And Company Enhancement of gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds
RU2624751C1 (en) * 2016-04-11 2017-07-06 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Method of cyanic leaching of gold and silver

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE66764C (en) * C. MOLDENHAUER in Frankfurt a. M Extraction of gold by means of cyanide alkali according to Patent No. 47 358
US732605A (en) * 1902-11-18 1903-06-30 Gustav E Thede Process of leaching ores.
US2839387A (en) * 1954-05-28 1958-06-17 Mining Corp Of Canada Ltd Method for the cyanidation of precious metals
US4421724A (en) * 1981-09-08 1983-12-20 Anglo Mineral Resources, Inc. Extraction method for refractory precious metal ore
CA1221842A (en) * 1983-06-03 1987-05-19 Arthur E. Coburn Treatment of ores
US4578163A (en) * 1984-12-03 1986-03-25 Homestake Mining Company Gold recovery process
US4814007A (en) * 1986-01-16 1989-03-21 Henkel Corporation Recovery of precious metals
AU554947B3 (en) * 1986-03-07 1986-10-14 Bendigo Gold Associates Pty. Ltd. Ore treatment with alkaline solution at elevated temperature with subsequent recovery
DE3637082C1 (en) * 1986-10-31 1988-05-19 Degussa Process for leaching precious metals from ores or ore concentrates using cyanide solutions with the addition of hydrogen peroxide

Also Published As

Publication number Publication date
EP0358004A2 (en) 1990-03-14
ZA896609B (en) 1990-06-27
ES2054954T3 (en) 1994-08-16
ID1014B (en) 1996-10-16
DE58904265D1 (en) 1993-06-09
CA1332110C (en) 1994-09-27
DE3830703C1 (en) 1990-03-22
ZW10589A1 (en) 1990-01-10
AU4119389A (en) 1990-03-15
EP0358004B1 (en) 1993-05-05
AU614420B2 (en) 1991-08-29
EP0358004A3 (en) 1990-04-25

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Legal Events

Date Code Title Description
RENW Renewal (renewal fees accepted)
ASS Change of ownership

Owner name: DEGUSSA AG, DE

Free format text: OLD OWNER(S): DEGUSSA AKTIENGESELLSCHAFT