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PE27195A1 - IMPROVEMENT IN GOLD LEACHING THROUGH THE USE OF NITROGEN AND SULFUR HETERO-CYCLE AROMATIC COMPOUNDS - Google Patents

IMPROVEMENT IN GOLD LEACHING THROUGH THE USE OF NITROGEN AND SULFUR HETERO-CYCLE AROMATIC COMPOUNDS

Info

Publication number
PE27195A1
PE27195A1 PE1994253013A PE25301394A PE27195A1 PE 27195 A1 PE27195 A1 PE 27195A1 PE 1994253013 A PE1994253013 A PE 1994253013A PE 25301394 A PE25301394 A PE 25301394A PE 27195 A1 PE27195 A1 PE 27195A1
Authority
PE
Peru
Prior art keywords
nitrogen
improvement
aromatic compounds
gold leaching
sulfur hetero
Prior art date
Application number
PE1994253013A
Other languages
Spanish (es)
Inventor
Sigridur Soley Kristjansdottir
Jeffery Scott Thompson
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of PE27195A1 publication Critical patent/PE27195A1/en

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

Abstract

SE REFIERE A UN PROCEDIMIENTO PARA DISOLVER ORO EN SISTEMAS DE LIXIVIACION DE LIGANDO Y OXIDANTE, DONDE LA SOLUBILIDAD DEL ORO SE AUMENTA AL ANADIR UN COMPUESTO AROMATICO HETEROCICLICO QUE CONTIENE NITROGENO O AZUFRE EN EL ANILLO, QUE ACTUA COMO UN CATALIZADOR AL ESTAR DISPONIBLE PARA COORDINACION CON LA SUPERFICIE DEL METAL Y NO CONSUMIRSE EN EL PROCEDIMIENTO; TAL COMO: IMIDAZOL, N-METILIMIDAZOL, BENCIMIDAZOL, PIRIDINA, PICOLINA, LUTIDINA, COLIDINA, QUINOLINA, ISOQUINOLINA, TIOFENO, ACIDO 3-TIOFENOCARBOXILICO, AMINOPIRIDINA, 3-HIDROXIPIRIDINA, DIMETILAMINOPIRIDINA Y OTROSIT REFERS TO A PROCEDURE FOR DISSOLVING GOLD IN LEACHING AND OXIDIZING LEACHING SYSTEMS, WHERE THE SOLUBILITY OF GOLD IS INCREASED BY ADDING A HETERO-CYCLE AROMATIC COMPOUND CONTAINING NITROGEN OR SULFUR IN THE RING, WHICH ACTUATES AS A CATALYST IN A RING THE METAL SURFACE AND NOT BE CONSUMED IN THE PROCEDURE; SUCH AS: IMIDAZOLE, N-METHYLIMIDAZOLE, BENZIMIDAZOLE, PIRIDINE, PICOLINE, LUTIDINE, COLIDINE, QUINOLINE, ISOQUINOLINE, THIOPHENO, ACID 3-THIOPHENOCARBOXILICO, 3-HYDROXIPYRIDINE, DIME, DIME

PE1994253013A 1993-10-21 1994-10-18 IMPROVEMENT IN GOLD LEACHING THROUGH THE USE OF NITROGEN AND SULFUR HETERO-CYCLE AROMATIC COMPOUNDS PE27195A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14080393A 1993-10-21 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

Publications (1)

Publication Number Publication Date
PE27195A1 true PE27195A1 (en) 1995-09-28

Family

ID=26838496

Family Applications (1)

Application Number Title Priority Date Filing Date
PE1994253013A PE27195A1 (en) 1993-10-21 1994-10-18 IMPROVEMENT IN GOLD LEACHING THROUGH THE USE OF NITROGEN AND SULFUR HETERO-CYCLE 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
WO2011100820A1 (en) 2010-02-18 2011-08-25 Neomet Technologies Inc. Process for the recovery of metals and hydrochloric acid
US8894740B2 (en) 2010-02-18 2014-11-25 Neomet Technologies Inc. Process for the recovery of gold from an ore in chloride medium with a nitrogen species
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
MX2016014770A (en) 2014-05-12 2017-05-25 Summit Mining Int Inc Brine leaching process for recovering valuable metals from oxide materials.
JP2018504296A (en) 2014-12-31 2018-02-15 ダウ グローバル テクノロジーズ エルエルシー Multi-layer film and its associated use
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
WO1995011319A1 (en) 1995-04-27
RU2114926C1 (en) 1998-07-10
CN1133617A (en) 1996-10-16
CA2171715A1 (en) 1995-04-27
ZW14094A1 (en) 1994-12-28
AU677450B2 (en) 1997-04-24
AU8012194A (en) 1995-05-08
CA2171715C (en) 2007-01-09
BR9407860A (en) 1997-05-20
CO4180615A1 (en) 1995-06-07

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Legal Events

Date Code Title Description
FG Grant, registration
FD Application declared void or lapsed