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WO2012114165A1 - Récupération efficace au plan énergétique de métaux précieux et de métaux communs - Google Patents

Récupération efficace au plan énergétique de métaux précieux et de métaux communs Download PDF

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Publication number
WO2012114165A1
WO2012114165A1 PCT/IB2011/054270 IB2011054270W WO2012114165A1 WO 2012114165 A1 WO2012114165 A1 WO 2012114165A1 IB 2011054270 W IB2011054270 W IB 2011054270W WO 2012114165 A1 WO2012114165 A1 WO 2012114165A1
Authority
WO
WIPO (PCT)
Prior art keywords
heap
cyanide
leaching
ore
metals
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.)
Ceased
Application number
PCT/IB2011/054270
Other languages
English (en)
Inventor
Jacobus Johannes EKSTEEN
James Malumbo MWASE
Jochen Petersen
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.)
University of Cape Town
Western Platinum Ltd
Original Assignee
University of Cape Town
Western Platinum 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 University of Cape Town, Western Platinum Ltd filed Critical University of Cape Town
Priority to AP2013007118A priority Critical patent/AP2013007118A0/xx
Priority to MX2013009642A priority patent/MX2013009642A/es
Priority to AU2011360586A priority patent/AU2011360586A1/en
Priority to RU2013142830/02A priority patent/RU2013142830A/ru
Priority to BR112013021490A priority patent/BR112013021490A2/pt
Publication of WO2012114165A1 publication Critical patent/WO2012114165A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • 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
    • C22B11/08—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
    • C22B3/18—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

Definitions

  • Platreef The significant mineralogical variation of Platreef in comparison to other South African BIC-based ores is well documented in public archival journals.
  • the uniqueness of Platreef is not only in terms of its mineralisation, geology and stratigraphy, but also in terms of the associations of PGEs with the underlying base metals sulphides, gangue silicate phases and its distribution along grain boundaries of silicates and base metal sulphides (BMS).
  • PGE residue with a grade of greater than 50% is typically produced.
  • This PGE concentrate derived from the BMR is typically leached in a chlorine and hydrochloric acid environment to solubilise the PGEs.
  • the PGE- containing solution is then separated into its constituent metals through a number of processes that might include any of a range of repeated precipitation and dissolution processes, solvent extraction, ion exchange or Molecular Recognition Technology (MRTTM).
  • MRTTM Molecular Recognition Technology
  • the heap is preferably rinsed and treated with a base such as lime to increase the pH to greater than 8, preferably greater than 9 and up to 12.
  • a base such as lime
  • Figure 2 is a graph showing the extraction of base metals in a bio leaching experiment
  • Figure 3 is a graph showing the extraction of platinum in a cyanide leaching experiment
  • Figure 4 is a graph showing the Fe extraction curves in a bio leaching experiment
  • Figure 6 is a graph showing the Ni extraction curves in a bio leaching experiment.
  • the ore or concentrate-on-gravel heaps are loaded onto impervious membranes, such as welded high density polyethylene (HDPE) sheeting which, in turn, is supported on a geo- membrane made of graded gravel rocks and clays to ensure an impervious base and which is geotechnically designed to carry the load of the heap above.
  • Pregnant leach solution derived from the heaps is accumulated in ponds from where it is pumped for base metal reclamation or PGM recovery and upgrading.
  • the heap is inoculated using a mixed culture of extreme thermophiles, thermophiles and mesophiles.

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)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Cette invention concerne un procédé efficace au plan énergétique pour récupérer des métaux communs et des métaux précieux à partir de minerai ou de concentré, le procédé comprenant les étapes de construction d'un amas (10) comprenant du minerai et/ou un concentré contenant des métaux communs et des métaux précieux, et la lixiviation et le retrait des métaux communs par inoculation de l'amas par un inoculum de bactéries thermophiles et des archées et la biolixiviation du minerai et/ou du concentré dans un procédé exotherme, et ensuite la lixiviation de l'amas (12) avec une solution aqueuse de cyanure (32) qui a été chauffée à une température supérieure à 40 °C et inférieure à 90 °C par des panneaux solaires (14) pour retirer les métaux précieux de l'amas dans une solution de lixiviat (26).
PCT/IB2011/054270 2011-02-23 2011-09-28 Récupération efficace au plan énergétique de métaux précieux et de métaux communs Ceased WO2012114165A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AP2013007118A AP2013007118A0 (en) 2011-02-23 2011-09-28 Energy efficient recovery of precious metals and base metals
MX2013009642A MX2013009642A (es) 2011-02-23 2011-09-28 Recuperacion con eficiencia energetica de metales preciosos y de metales base.
AU2011360586A AU2011360586A1 (en) 2011-02-23 2011-09-28 Energy efficient recovery of precious metals and base metals
RU2013142830/02A RU2013142830A (ru) 2011-02-23 2011-09-28 Энергосберегающее извлечение благородных металлов и цветных металлов
BR112013021490A BR112013021490A2 (pt) 2011-02-23 2011-09-28 Processo para recuperar metais básicos e metais preciosos de minérios ou concentrados

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201101436 2011-02-23
ZA2011/01436 2011-02-23

Publications (1)

Publication Number Publication Date
WO2012114165A1 true WO2012114165A1 (fr) 2012-08-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/054270 Ceased WO2012114165A1 (fr) 2011-02-23 2011-09-28 Récupération efficace au plan énergétique de métaux précieux et de métaux communs

Country Status (7)

Country Link
AP (1) AP2013007118A0 (fr)
AU (1) AU2011360586A1 (fr)
BR (1) BR112013021490A2 (fr)
CL (1) CL2013002397A1 (fr)
MX (1) MX2013009642A (fr)
RU (1) RU2013142830A (fr)
WO (1) WO2012114165A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140116521A1 (en) * 2012-10-28 2014-05-01 SYNCRUDE CANADA LTD. in trust for the owners of the Syncrude Project as such owners exist now and Subaqueous mining tailings placement
CN109250882A (zh) * 2018-10-12 2019-01-22 江西省科学院生物资源研究所 一种畜禽废弃物重金属脱除的方法
CN109929996A (zh) * 2017-12-19 2019-06-25 北京有色金属研究总院 高铁低品位硫化镍矿选择性生物浸出工艺
CN109957649A (zh) * 2017-12-25 2019-07-02 北京有色金属研究总院 一种复杂硫精矿制备高品质铁精矿并协同回收铜锌的方法
CN114317998A (zh) * 2021-12-29 2022-04-12 上海第二工业大学 一种微电场耦合微生物处理废钯炭催化剂中杂质金属的方法
US11408053B2 (en) 2015-04-21 2022-08-09 Excir Works Corp. Methods for selective leaching and extraction of precious metals in organic solvents
CN115552047A (zh) * 2020-03-18 2022-12-30 Bhp智利股份有限公司 贱金属的氧化生物浸出
CN116134162A (zh) * 2020-07-17 2023-05-16 英美资源技术与可持续发展服务有限公司 一体化堆浸工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219474A (en) * 1988-05-06 1989-12-13 Interox Chemicals Ltd Gold leaching
EP0522978A1 (fr) * 1991-07-10 1993-01-13 Newmont Mining Corporation Procédé de récupération de métaux à partir de minerais de sulfure par biooxydation
US6096113A (en) * 1997-05-16 2000-08-01 Echo Bay Mines, Limited Integrated, closed tank biooxidation/heap bioleach/precious metal leach processes for treating refractory sulfide ores

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219474A (en) * 1988-05-06 1989-12-13 Interox Chemicals Ltd Gold leaching
EP0522978A1 (fr) * 1991-07-10 1993-01-13 Newmont Mining Corporation Procédé de récupération de métaux à partir de minerais de sulfure par biooxydation
US6096113A (en) * 1997-05-16 2000-08-01 Echo Bay Mines, Limited Integrated, closed tank biooxidation/heap bioleach/precious metal leach processes for treating refractory sulfide ores

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140116521A1 (en) * 2012-10-28 2014-05-01 SYNCRUDE CANADA LTD. in trust for the owners of the Syncrude Project as such owners exist now and Subaqueous mining tailings placement
US9068697B2 (en) * 2012-10-28 2015-06-30 Syncrude Cananda Ltd. Subaqueous mining tailings placement
US11814698B2 (en) 2015-04-21 2023-11-14 Excir Works Corp. Methods for simultaneous leaching and extraction of precious metals
US11408053B2 (en) 2015-04-21 2022-08-09 Excir Works Corp. Methods for selective leaching and extraction of precious metals in organic solvents
US11427886B2 (en) 2015-04-21 2022-08-30 Excir Works Corp. Methods for simultaneous leaching and extraction of precious metals
CN109929996A (zh) * 2017-12-19 2019-06-25 北京有色金属研究总院 高铁低品位硫化镍矿选择性生物浸出工艺
CN109957649A (zh) * 2017-12-25 2019-07-02 北京有色金属研究总院 一种复杂硫精矿制备高品质铁精矿并协同回收铜锌的方法
CN109957649B (zh) * 2017-12-25 2020-08-14 有研工程技术研究院有限公司 一种复杂硫精矿制备高品质铁精矿并协同回收铜锌的方法
CN109250882A (zh) * 2018-10-12 2019-01-22 江西省科学院生物资源研究所 一种畜禽废弃物重金属脱除的方法
CN115552047A (zh) * 2020-03-18 2022-12-30 Bhp智利股份有限公司 贱金属的氧化生物浸出
CN116134162A (zh) * 2020-07-17 2023-05-16 英美资源技术与可持续发展服务有限公司 一体化堆浸工艺
FI131373B1 (en) * 2020-07-17 2025-03-14 Anglo American Technical & Sustainability Services Ltd INTEGRATED HIGH-LEACHING PROCEDURE
CN114317998A (zh) * 2021-12-29 2022-04-12 上海第二工业大学 一种微电场耦合微生物处理废钯炭催化剂中杂质金属的方法

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BR112013021490A2 (pt) 2024-01-16
RU2013142830A (ru) 2015-04-10
CL2013002397A1 (es) 2014-04-21
AP2013007118A0 (en) 2013-09-30
AU2011360586A1 (en) 2013-08-29
MX2013009642A (es) 2014-01-17

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