CA2278043A1 - Method for initiating heap bioleaching of sulfidic ores - Google Patents

Method for initiating heap bioleaching of sulfidic ores Download PDF

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Publication number
CA2278043A1
CA2278043A1 CA002278043A CA2278043A CA2278043A1 CA 2278043 A1 CA2278043 A1 CA 2278043A1 CA 002278043 A CA002278043 A CA 002278043A CA 2278043 A CA2278043 A CA 2278043A CA 2278043 A1 CA2278043 A1 CA 2278043A1
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CA
Canada
Prior art keywords
initiating
sulfidic ores
heap
heap bioleaching
bioleaching
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
CA002278043A
Other languages
French (fr)
Other versions
CA2278043C (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 CA002278043A priority Critical patent/CA2278043C/en
Publication of CA2278043A1 publication Critical patent/CA2278043A1/en
Application granted granted Critical
Publication of CA2278043C publication Critical patent/CA2278043C/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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The process of the present invention "jump starts" heap biooxidation of sulfides by incorporating a previously biooxidized material into the heap. The process can be used to recover precious and/or base metals from sulfidic ores and concentrate.
CA002278043A 1999-07-19 1999-07-19 Method for initiating heap bioleaching of sulfidic ores Expired - Lifetime CA2278043C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002278043A CA2278043C (en) 1999-07-19 1999-07-19 Method for initiating heap bioleaching of sulfidic ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002278043A CA2278043C (en) 1999-07-19 1999-07-19 Method for initiating heap bioleaching of sulfidic ores

Publications (2)

Publication Number Publication Date
CA2278043A1 true CA2278043A1 (en) 2001-01-19
CA2278043C CA2278043C (en) 2007-04-17

Family

ID=4163794

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002278043A Expired - Lifetime CA2278043C (en) 1999-07-19 1999-07-19 Method for initiating heap bioleaching of sulfidic ores

Country Status (1)

Country Link
CA (1) CA2278043C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102643983A (en) * 2012-05-23 2012-08-22 中国瑞林工程技术有限公司 Stage-by-stage dump leaching technology for low-grade mixed copper ore

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8262768B2 (en) 2007-09-17 2012-09-11 Barrick Gold Corporation 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
TR201002190T1 (en) 2007-09-18 2010-08-23 Barrick Gold Corporation Process for the recovery of gold and silver from refractory ores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102643983A (en) * 2012-05-23 2012-08-22 中国瑞林工程技术有限公司 Stage-by-stage dump leaching technology for low-grade mixed copper ore

Also Published As

Publication number Publication date
CA2278043C (en) 2007-04-17

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