WO2012106831A3 - Method and system for the solar heap leaching of minerals, using solar concentrating collectors, based on fresnel lenses with solar tracking - Google Patents

Method and system for the solar heap leaching of minerals, using solar concentrating collectors, based on fresnel lenses with solar tracking Download PDF

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Publication number
WO2012106831A3
WO2012106831A3 PCT/CL2012/000004 CL2012000004W WO2012106831A3 WO 2012106831 A3 WO2012106831 A3 WO 2012106831A3 CL 2012000004 W CL2012000004 W CL 2012000004W WO 2012106831 A3 WO2012106831 A3 WO 2012106831A3
Authority
WO
WIPO (PCT)
Prior art keywords
solar
heap
copper
order
leaching
Prior art date
Application number
PCT/CL2012/000004
Other languages
Spanish (es)
French (fr)
Other versions
WO2012106831A2 (en
Inventor
José Octavio HERNÁNDEZ PAVÉZ
Jesús Manuel CASAS DE PRADA
Original Assignee
Hernandez Pavez Jose Octavio
Casas De Prada Jesus Manuel
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 Hernandez Pavez Jose Octavio, Casas De Prada Jesus Manuel filed Critical Hernandez Pavez Jose Octavio
Publication of WO2012106831A2 publication Critical patent/WO2012106831A2/en
Publication of WO2012106831A3 publication Critical patent/WO2012106831A3/en

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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
    • C22B3/02—Apparatus therefor
    • 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
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention relates to a copper mineral leaching method, known as solar heap leaching (SHL), providing faster recovery and increased yield, in which: a) the heap of minerals is watered with hot leaching solutions; b) the heap is covered in order to prevent water evaporation and heat loss, while allowing the penetration of solar radiation in order to heat the heap; c) the effluent leaching solutions from the heap are subjected to extraction with solvents or chemical precipitation in order to recover the copper; d) the copper-deficient solutions resulting from the copper recovery step are heated by means of heat exchange with a hot thermal fluid; e) the thermal fluid is heated by means of solar radiation; and f) the hot copper-deficient solutions are collected in order to be supplied to the heaps in a continuous manner throughout the 24 hours of the day. The method is carried out in a system comprising a solar collector having an original design, with solar tracking based on concentrating solar radiation using Fresnel lenses.
PCT/CL2012/000004 2011-02-08 2012-02-06 Method and system for the solar heap leaching of minerals, using solar concentrating collectors, based on fresnel lenses with solar tracking WO2012106831A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL272-2011 2011-02-08
CL2011000272A CL2011000272A1 (en) 2011-02-08 2011-02-08 Procedure and solar heating system of solutions of metallurgical process plants because it comprises using concentrated solar thermal energy and transferring heat through a thermal fluid to the process solutions.

Publications (2)

Publication Number Publication Date
WO2012106831A2 WO2012106831A2 (en) 2012-08-16
WO2012106831A3 true WO2012106831A3 (en) 2012-11-15

Family

ID=46639000

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CL2012/000004 WO2012106831A2 (en) 2011-02-08 2012-02-06 Method and system for the solar heap leaching of minerals, using solar concentrating collectors, based on fresnel lenses with solar tracking

Country Status (2)

Country Link
CL (1) CL2011000272A1 (en)
WO (1) WO2012106831A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2891236C (en) * 2012-11-15 2021-05-11 Technological Resources Pty. Limited Heap leaching

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES426415A1 (en) * 1974-05-17 1976-08-01 Briones Fernandez Pola Translucent cover solar energy collector, composed by fresnel cylinder lenses. (Machine-translation by Google Translate, not legally binding)
EP0020153A1 (en) * 1979-06-01 1980-12-10 Exxon Research And Engineering Company Radiation collector
US4739973A (en) * 1986-08-13 1988-04-26 Herndon J Marvin Chemical extraction of metals from ores
WO2007092871A2 (en) * 2006-02-07 2007-08-16 Lane Richard P Method and apparatus for solar heating a leach solution
WO2007140554A1 (en) * 2006-06-02 2007-12-13 Companhia Vale Do Rio Doce An ore heap leaching process for metal production with the aid of solar energy

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES426415A1 (en) * 1974-05-17 1976-08-01 Briones Fernandez Pola Translucent cover solar energy collector, composed by fresnel cylinder lenses. (Machine-translation by Google Translate, not legally binding)
EP0020153A1 (en) * 1979-06-01 1980-12-10 Exxon Research And Engineering Company Radiation collector
US4739973A (en) * 1986-08-13 1988-04-26 Herndon J Marvin Chemical extraction of metals from ores
WO2007092871A2 (en) * 2006-02-07 2007-08-16 Lane Richard P Method and apparatus for solar heating a leach solution
WO2007140554A1 (en) * 2006-06-02 2007-12-13 Companhia Vale Do Rio Doce An ore heap leaching process for metal production with the aid of solar energy

Also Published As

Publication number Publication date
CL2011000272A1 (en) 2011-06-10
WO2012106831A2 (en) 2012-08-16

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