CA2113039A1 - Process for biolixiviating copper sulfides by indirect contact with separation of effects - Google Patents

Process for biolixiviating copper sulfides by indirect contact with separation of effects

Info

Publication number
CA2113039A1
CA2113039A1 CA2113039A CA2113039A CA2113039A1 CA 2113039 A1 CA2113039 A1 CA 2113039A1 CA 2113039 A CA2113039 A CA 2113039A CA 2113039 A CA2113039 A CA 2113039A CA 2113039 A1 CA2113039 A1 CA 2113039A1
Authority
CA
Canada
Prior art keywords
copper
low concentration
biolixiviation
biolixiviating
ferric sulfate
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
CA2113039A
Other languages
French (fr)
Other versions
CA2113039C (en
Inventor
Juan Luis Bouso Aragones
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.)
ISKAY SERVICIOS METALURGICOS Srl
Original Assignee
ISKAY SERVICIOS METALURGICOS Srl
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 ISKAY SERVICIOS METALURGICOS Srl filed Critical ISKAY SERVICIOS METALURGICOS Srl
Priority to CA002113039A priority Critical patent/CA2113039C/en
Publication of CA2113039A1 publication Critical patent/CA2113039A1/en
Application granted granted Critical
Publication of CA2113039C publication Critical patent/CA2113039C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • C22B15/00—Obtaining copper
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Process for biolixiviating minerals from copper sulfides and also from their flotation concentrates, characterized by the use of biolixiviation through indirect contact as well as separation and improvement of the chemical and biological steps of the biolixiviation process. In the chemical step, a low concentration of ferric sulfate is used as the lixiviating agent. In the biological step, bacterial films of Thiobacillus ferrooxidans attached to an inert solid are used to regenerate the lixiviating agent by converting the ferrous ion into ferric ion through oxidation. The regenerated agent is then recycled to the lixiviation reactor. The biolixiviation process permits complete extraction of the copper contained in the ore and results in a lixiviation liquor which contains all the copper charge and a low concentration of ferric sulfate similar to the low concentration of ferric sulfate used initially. The copper obtained can be treated without difficulty by means of extraction with solvents and electrolysis in order to obtain cathode copper.
CA002113039A 1994-01-07 1994-01-07 Process for biolixiviating copper sulfides by indirect contact with separation of effects Expired - Fee Related CA2113039C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002113039A CA2113039C (en) 1994-01-07 1994-01-07 Process for biolixiviating copper sulfides by indirect contact with separation of effects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002113039A CA2113039C (en) 1994-01-07 1994-01-07 Process for biolixiviating copper sulfides by indirect contact with separation of effects

Publications (2)

Publication Number Publication Date
CA2113039A1 true CA2113039A1 (en) 1995-07-08
CA2113039C CA2113039C (en) 1999-04-06

Family

ID=4152707

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002113039A Expired - Fee Related CA2113039C (en) 1994-01-07 1994-01-07 Process for biolixiviating copper sulfides by indirect contact with separation of effects

Country Status (1)

Country Link
CA (1) CA2113039C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736877B2 (en) 2001-07-13 2004-05-18 Teck Cominco Metals Ltd. Heap bioleaching process for the extraction of zinc
US7455715B2 (en) 2001-07-13 2008-11-25 Teck Cominco Metals Ltd. Heap bioleaching process for the extraction of zinc

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736877B2 (en) 2001-07-13 2004-05-18 Teck Cominco Metals Ltd. Heap bioleaching process for the extraction of zinc
US7455715B2 (en) 2001-07-13 2008-11-25 Teck Cominco Metals Ltd. Heap bioleaching process for the extraction of zinc

Also Published As

Publication number Publication date
CA2113039C (en) 1999-04-06

Similar Documents

Publication Publication Date Title
US3930969A (en) Process for oxidizing metal sulfides to elemental sulfur using activated carbon
CA2233417A1 (en) Copper recovery
RU94026267A (en) Method of reduction of precious metal from carbon ores
IE44035L (en) Recovering zinc.
EP0177293B1 (en) Process for separately recovering gold and silver from solution by carbon adsorption
KR20020070281A (en) Recovery of metals from ore
JPS6455395A (en) Treatment of electrolytic solution of valuable metal
JP3254501B2 (en) Method for removing arsenic from acidic solution containing arsenic and iron
GB1497349A (en) Method of obtaining copper from cupriferous sulphide concentrates
CN1040552C (en) Pre-oxidating method for difficultly beneficiated gold containing ore or concentrated mineral by bacteria
Kumari et al. Electrobioleaching of polymetallic ocean nodules
WO1996027193A3 (en) Method for removal of technetium from radio-contaminated metal
CA2155050C (en) Recovery of nickel using heap leaching
CA2113039A1 (en) Process for biolixiviating copper sulfides by indirect contact with separation of effects
RU2004116335A (en) REMOVING COPPER FROM CHALCOPYRITE
McElroy et al. Continuous biological leaching of chalcopyrite concentrates: Demonstration and economic analysis
GB1407520A (en) Electrolytic hydrometallurgical process to recover copper from sulphide ore concentrates
GB1491851A (en) Process for recovering copper and zinc from hydrothermal ore sludges
AU8746801A (en) Pressure leaching process for zinc
ES2064285A1 (en) Procedure for bio-leaching of copper sulphides by indirect contact with separation of effects
US6379919B1 (en) Method for isolating thiocyanate resistant bacteria
RU2255127C2 (en) Method of extraction of copper and gold from oxidized ores and technogenious wastes
RU2007483C1 (en) Method of electrochemical leaching of polymetallic raw
Prengaman et al. Method of recovering lead values from battery sludge
US4032330A (en) Process for recovery of copper

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed