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PE20050303A1 - BACTERIAL LEACHING PROCESS IN ORE PILES WITH BASE METAL SULFIDES - Google Patents

BACTERIAL LEACHING PROCESS IN ORE PILES WITH BASE METAL SULFIDES

Info

Publication number
PE20050303A1
PE20050303A1 PE2004000247A PE2004000247A PE20050303A1 PE 20050303 A1 PE20050303 A1 PE 20050303A1 PE 2004000247 A PE2004000247 A PE 2004000247A PE 2004000247 A PE2004000247 A PE 2004000247A PE 20050303 A1 PE20050303 A1 PE 20050303A1
Authority
PE
Peru
Prior art keywords
ore
sulfide
base metal
leaching process
metal sulfides
Prior art date
Application number
PE2004000247A
Other languages
Spanish (es)
Inventor
Tamsin Lisa Williams
Colin John Hunter
Original Assignee
Bioheap Ltd
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 Bioheap Ltd filed Critical Bioheap Ltd
Publication of PE20050303A1 publication Critical patent/PE20050303A1/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
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0065—Leaching or slurrying
    • C22B15/0067—Leaching or slurrying with acids or salts thereof
    • C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
    • 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
    • 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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

DONDE LAS MENAS CONTIENEN UN MINERAL O UN CONJUNTO DE MINERALES QUE REQUIEREN TEMPERATURAS MAYORES A 45°C PARA LA OXIDACION EFICIENTE DEL MINERAL O DE CADA UNO DE LOS MINERALES. EL PROCESO COMPRENDE LA ADICION DE SULFURO ELEMENTAL A LA MENA, DONDE EL SULFURO ELEMENTAL ES OXIDADO A TEMPERATURAS MENORES DE 45°C POR BACTERIAS MESOFILICAS PRESENTES EN LA PILA DE LA MENA, GENERANDO ESTA OXIDACION CALOR Y ACIDO SULFURICO, Y AUMENTANDO LA TEMPERATURA INTERNA DE LA PILA EN FORMA PROGRESIVA PARA QUE LAS BACTERIAS TERMOFILICAS PUEDAN OPERAR. EL SULFURO ELEMENTAL ES, O BIEN MEZCLADO CON LA MENA DURANTE LA AGLOMERACION, O BIEN ANADIDO A LA MENA EN OTRO MOMENTO ANTES O DURANTE LA FORMACION DE LA PILA, PROPORCIONANDO ENTRE 2% Y 20% DEL SULFURO ELEMENTAL EN LA MENA (p/p)WHERE THE ORE CONTAINS A MINERAL OR A SET OF MINERALS THAT REQUIRE TEMPERATURES GREATER THAN 45 ° C FOR THE EFFICIENT OXIDATION OF THE MINERAL OR OF EACH OF THE MINERALS. THE PROCESS INCLUDES THE ADDITION OF ELEMENTAL SULFIDE TO THE ORE, WHERE THE ELEMENTARY SULFIDE IS OXIDIZED AT TEMPERATURES LESS THAN 45 ° C BY MESOPHILIC BACTERIA PRESENT IN THE ORE PILE, GENERATING THIS OXIDATION AND TEMPERATURE OF INTERIOR HEAT AND ACID SULFNAIC ACID THE BATTERY IN PROGRESSIVE FORM SO THAT THE THERMOFILIC BACTERIA CAN OPERATE. ELEMENTARY SULFIDE IS EITHER MIXED WITH THE ORE DURING AGGLOMERATION, OR ADDED TO THE ORE AT ANOTHER TIME BEFORE OR DURING THE FORMATION OF THE PILE, PROVIDING BETWEEN 2% AND 20% OF THE ELEMENTAL SULFIDE IN THE ORE (p / p )

PE2004000247A 2003-03-12 2004-03-08 BACTERIAL LEACHING PROCESS IN ORE PILES WITH BASE METAL SULFIDES PE20050303A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2003901105A AU2003901105A0 (en) 2003-03-12 2003-03-12 Improved heap leach

Publications (1)

Publication Number Publication Date
PE20050303A1 true PE20050303A1 (en) 2005-07-08

Family

ID=31500149

Family Applications (1)

Application Number Title Priority Date Filing Date
PE2004000247A PE20050303A1 (en) 2003-03-12 2004-03-08 BACTERIAL LEACHING PROCESS IN ORE PILES WITH BASE METAL SULFIDES

Country Status (9)

Country Link
US (1) US20060248983A1 (en)
EP (1) EP1620576A4 (en)
CN (1) CN1320138C (en)
AR (1) AR043514A1 (en)
AU (1) AU2003901105A0 (en)
CA (1) CA2517693C (en)
PE (1) PE20050303A1 (en)
WO (1) WO2004081241A1 (en)
ZA (1) ZA200506897B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PE20071046A1 (en) 2005-03-21 2007-12-21 Bioheap Ltd LEACHING BY SULFIDE MINERALS STACKS
WO2008054648A2 (en) * 2006-10-18 2008-05-08 Earth Based Solutions, Llp Method for producing sulfuric acid
CN101855374B (en) * 2007-10-31 2014-01-29 Bhp比尔顿有限公司 High temperature leaching process
US9624560B2 (en) * 2010-06-15 2017-04-18 Teck Resources Limited Recovery of residual copper from heap leach residues

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497778A (en) * 1981-04-06 1985-02-05 University College Cardiff Consultants Limited Microbial leaching of sulphide-containing ores
US4729788A (en) * 1987-01-23 1988-03-08 Advanced Mineral Technologies, Inc. Thermophilic microbial treatment of precious metal ores
US5914441A (en) * 1996-06-12 1999-06-22 Yellowstone Environmental Science, Inc. Biocatalyzed anaerobic oxidation of metal sulfides for recovery of metal values
AUPP444298A0 (en) * 1998-07-01 1998-07-23 Bactech (Australia) Pty Limited Leaching of low sulphur ores
DE19835291A1 (en) * 1998-08-05 2000-02-10 Herberts Gmbh Plastic container for storing liquid coating agents
US6110253A (en) * 1998-12-14 2000-08-29 Geobiotics, Inc. High temperature heap bioleaching process
AU2843500A (en) * 1998-12-15 2000-07-03 Electric Fuel Limited Structure for a prism-shaped metal-air battery cell with features to prevent electrolyte leakage and to maintain connectivity between an air cathode and a casing element
US6245125B1 (en) * 1999-09-15 2001-06-12 Billiton S.A. Limited Copper, nickel and cobalt recovery
US6387239B1 (en) * 1999-11-17 2002-05-14 Bhp Minerals International, Inc. Recovery of metals from ore
DE19960132A1 (en) * 1999-12-14 2001-06-21 Alexander Beckmann Process for the extraction of copper and other metals
CN1132945C (en) * 2000-02-22 2003-12-31 中国科学院化工冶金研究所 Microbe leaching-out method of valuable metals from deep-sea polymetal nodule

Also Published As

Publication number Publication date
CN1759193A (en) 2006-04-12
CN1320138C (en) 2007-06-06
ZA200506897B (en) 2007-02-28
EP1620576A1 (en) 2006-02-01
EP1620576A4 (en) 2008-05-21
WO2004081241A1 (en) 2004-09-23
CA2517693A1 (en) 2004-09-23
CA2517693C (en) 2012-08-14
US20060248983A1 (en) 2006-11-09
AU2003901105A0 (en) 2003-03-27
AR043514A1 (en) 2005-08-03

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