CA2171715A1 - Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds - Google Patents

Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds

Info

Publication number
CA2171715A1
CA2171715A1 CA002171715A CA2171715A CA2171715A1 CA 2171715 A1 CA2171715 A1 CA 2171715A1 CA 002171715 A CA002171715 A CA 002171715A CA 2171715 A CA2171715 A CA 2171715A CA 2171715 A1 CA2171715 A1 CA 2171715A1
Authority
CA
Canada
Prior art keywords
aromatic compounds
heterocyclic aromatic
nitrogen
gold
sulfur heterocyclic
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002171715A
Other languages
French (fr)
Other versions
CA2171715C (en
Inventor
Sigridur Soley Kristjansdottir
Jeffery Scott Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Nevada Reno
Original Assignee
Individual
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
Priority claimed from US08/281,966 external-priority patent/US5484470A/en
Application filed by Individual filed Critical Individual
Publication of CA2171715A1 publication Critical patent/CA2171715A1/en
Application granted granted Critical
Publication of CA2171715C publication Critical patent/CA2171715C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G7/00—Compounds of gold
    • 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
    • C22B11/04—Obtaining noble metals by wet processes
    • 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
    • C22B11/06—Chloridising
    • 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
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
    • C22B3/1666—Leaching with heterocyclic compounds
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Catalysts (AREA)
  • Pyridine Compounds (AREA)

Abstract

An improved process for dissolving gold metal in ligand and oxidant lixiviation systems, wherein the solubility of gold is enhanced by the addition of heterocyclic aromatic compounds containing nitrogen or sulfur in the ring.
CA002171715A 1993-10-21 1994-10-06 Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds Expired - Fee Related CA2171715C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US14080393A 1993-10-21 1993-10-21
US08/140,803 1993-10-21
US08/281,966 US5484470A (en) 1994-07-28 1994-07-28 Enhancement of gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds
US08/281,966 1994-07-28
PCT/US1994/011047 WO1995011319A1 (en) 1993-10-21 1994-10-06 Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds

Publications (2)

Publication Number Publication Date
CA2171715A1 true CA2171715A1 (en) 1995-04-27
CA2171715C CA2171715C (en) 2007-01-09

Family

ID=26838496

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002171715A Expired - Fee Related CA2171715C (en) 1993-10-21 1994-10-06 Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds

Country Status (9)

Country Link
CN (1) CN1133617A (en)
AU (1) AU677450B2 (en)
BR (1) BR9407860A (en)
CA (1) CA2171715C (en)
CO (1) CO4180615A1 (en)
PE (1) PE27195A1 (en)
RU (1) RU2114926C1 (en)
WO (1) WO1995011319A1 (en)
ZW (1) ZW14094A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2789095C (en) 2010-02-18 2018-03-06 Neomet Technologies Inc. Process for the recovery of gold from an ore in chloride medium with a nitrogen species
CA3012343C (en) 2010-02-18 2019-12-31 Brav Metal Technologies Inc. Process for the recovery of metals and hydrochloric acid
RU2467082C1 (en) * 2011-03-29 2012-11-20 Федеральное государственное бюджетное учреждение науки Институт неорганической химии им. А.В. Николаева Сибирского отделения Российской академии наук Method of electrochemical extraction of silver from silver-bearing current-conducting wastes
CN102534204B (en) * 2012-03-06 2014-11-05 昆明理工大学 Thiosulfate gold extraction method taking Fe (III) cyanide salts as oxidants
WO2015175251A1 (en) 2014-05-12 2015-11-19 Summit Mining International Inc. Brine leaching process for recovering valuable metals from oxide materials
US10927431B2 (en) 2014-12-31 2021-02-23 Dow Global Technologies Llc Multilayer films and related uses thereof
CN108265174B (en) * 2018-01-25 2019-04-23 许良秋 A kind of gold mine cleaning Method for extracting gold
CN110029230B (en) * 2019-04-11 2020-07-21 陕西师范大学 Green environment-friendly non-cyanide gold extraction agent, preparation method and application thereof
CN110172585B (en) * 2019-04-29 2020-10-13 北京理工大学 Method for extracting gold simple substance from gold-containing waste material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184647A (en) * 1984-03-01 1985-09-20 Hitachi Ltd Method for recovering noble metal from fuel cell
CA1223125A (en) * 1984-06-07 1987-06-23 George P. Demopoulos Direct recovery of precious metals by solvent extraction and selective removal
JPH01111824A (en) * 1987-10-23 1989-04-28 Tanaka Kikinzoku Kogyo Kk Method for recovering gold from gold-containing liquid
US5169503A (en) * 1988-06-24 1992-12-08 Baughman David R Process for extracting metal values from ores
US5250272A (en) * 1988-09-09 1993-10-05 Degussa Aktiengesellschaft Process for leaching precious metals with hydrogen-peroxide and a cyanide leaching solution
DE3830703C1 (en) * 1988-09-09 1990-03-22 Degussa Ag, 6000 Frankfurt, De
US4997532A (en) * 1988-12-30 1991-03-05 Satec Ltd. Process for extracting noble metals
US5131943A (en) * 1990-12-11 1992-07-21 Conoco Inc. Process for the separation of precious group VIII a metals from cyano complexes of such metals and other metals
US5256187A (en) * 1992-11-12 1993-10-26 Sherex Chemical Company, Inc. Separation of precious metals by an ion exchange process

Also Published As

Publication number Publication date
BR9407860A (en) 1997-05-20
PE27195A1 (en) 1995-09-28
ZW14094A1 (en) 1994-12-28
CN1133617A (en) 1996-10-16
WO1995011319A1 (en) 1995-04-27
AU8012194A (en) 1995-05-08
CA2171715C (en) 2007-01-09
RU2114926C1 (en) 1998-07-10
CO4180615A1 (en) 1995-06-07
AU677450B2 (en) 1997-04-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed