CA2278044A1 - Method for recovering gold from refractory carbonaceous ores - Google Patents

Method for recovering gold from refractory carbonaceous ores Download PDF

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Publication number
CA2278044A1
CA2278044A1 CA002278044A CA2278044A CA2278044A1 CA 2278044 A1 CA2278044 A1 CA 2278044A1 CA 002278044 A CA002278044 A CA 002278044A CA 2278044 A CA2278044 A CA 2278044A CA 2278044 A1 CA2278044 A1 CA 2278044A1
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CA
Canada
Prior art keywords
refractory carbonaceous
recovering gold
carbonaceous ores
dilution
precious metal
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
CA002278044A
Other languages
French (fr)
Other versions
CA2278044C (en
Inventor
James A. King
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.)
Placer Dome Technical Services Ltd
Original Assignee
Placer Dome Inc
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 Placer Dome Inc filed Critical Placer Dome Inc
Priority to CA002278044A priority Critical patent/CA2278044C/en
Publication of CA2278044A1 publication Critical patent/CA2278044A1/en
Application granted granted Critical
Publication of CA2278044C publication Critical patent/CA2278044C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22B11/04—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
    • 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
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The process of the present invention recovers precious metals from refractory carbonaceous precious metal ores by floating a portion of the ground ore, blending the concentrate with an unfloated portion of the ore, autogenously autoclaving the blended material, cooling the oxidized slurry by dilution, leaching the oxidized slurry after dilution in the presence of a thiosulfate lixiviant, and recovering the precious metal by suitable techniques.
CA002278044A 1999-07-19 1999-07-19 Method for recovering gold from refractory carbonaceous ores Expired - Lifetime CA2278044C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002278044A CA2278044C (en) 1999-07-19 1999-07-19 Method for recovering gold from refractory carbonaceous ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002278044A CA2278044C (en) 1999-07-19 1999-07-19 Method for recovering gold from refractory carbonaceous ores

Publications (2)

Publication Number Publication Date
CA2278044A1 true CA2278044A1 (en) 2001-01-19
CA2278044C CA2278044C (en) 2008-10-07

Family

ID=4163795

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002278044A Expired - Lifetime CA2278044C (en) 1999-07-19 1999-07-19 Method for recovering gold from refractory carbonaceous ores

Country Status (1)

Country Link
CA (1) CA2278044C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005556A1 (en) * 2002-07-02 2004-01-15 Commonwealth Scientific And Industrial Research Organisation Process for leaching precious metals
CN113755695A (en) * 2021-08-11 2021-12-07 昆明理工大学 Enrichment recovery of gold (Au (S) in thiosulfate solution2O3)23-) of (b)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA020950B1 (en) 2007-09-17 2015-03-31 Баррик Гольд Корпорейшн Method to improve recovery of gold from double refractory gold ores
US8262770B2 (en) 2007-09-18 2012-09-11 Barrick Gold Corporation Process for controlling acid in sulfide pressure oxidation processes
CA2699873C (en) 2007-09-18 2013-05-14 Barrick Gold Corporation Process for recovering gold and silver from refractory ores
US20220119916A1 (en) * 2020-10-16 2022-04-21 American Air Liquide, Inc. Methods of base metal recovery with applications of oxygen vectors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005556A1 (en) * 2002-07-02 2004-01-15 Commonwealth Scientific And Industrial Research Organisation Process for leaching precious metals
CN113755695A (en) * 2021-08-11 2021-12-07 昆明理工大学 Enrichment recovery of gold (Au (S) in thiosulfate solution2O3)23-) of (b)

Also Published As

Publication number Publication date
CA2278044C (en) 2008-10-07

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