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WO2002002832A1 - Heap leach bio oxidization - Google Patents

Heap leach bio oxidization Download PDF

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Publication number
WO2002002832A1
WO2002002832A1 PCT/IB2000/000928 IB0000928W WO0202832A1 WO 2002002832 A1 WO2002002832 A1 WO 2002002832A1 IB 0000928 W IB0000928 W IB 0000928W WO 0202832 A1 WO0202832 A1 WO 0202832A1
Authority
WO
WIPO (PCT)
Prior art keywords
bio
ore
heap
heap leach
oxdized
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/IB2000/000928
Other languages
French (fr)
Inventor
David C. Brookens
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11003946&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2002002832(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to PCT/IB2000/000928 priority Critical patent/WO2002002832A1/en
Priority to AU54217/00A priority patent/AU5421700A/en
Publication of WO2002002832A1 publication Critical patent/WO2002002832A1/en
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
    • C22B3/18—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
    • C22B30/00—Obtaining antimony, arsenic or bismuth
    • C22B30/04—Obtaining arsenic
    • 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

  • Treatment of refractory base and precious metal ore requires expensive crushing, milling, and flotation followed by pyro etalurgical reduction.
  • the launder, rehandling equipment, precipitate colunm(s), pulp collection and pumping equipment and second leach pad for receiving the laundered, unoxdizied ore are not showen.
  • the launder could consist of a Variable Capacity Improved and Leases Plane Table having a very small grooves, for example minus 40 mesh. 0
  • the table could tbnn discharge extracted concentrate directly into the precipitate columns.
  • //I is the clear plastic, 10 mil plus, green house membrane providing for entrance of sunlight, retention of humidity, elevation of temperature and control of liquid process volumes in the necessary out door env or- n ent .
  • #2 is one branch of the perforated, small diameter, high preasure plastic irrigation pipe line from the in- ter itently timed pump, #7.
  • the support systems for #1&2 may be intergral from the ore stockpile, #3, heaped surface.
  • #4 is the self draining asphaultic concrete leach pad which is built with an apposite transverse and longitudinal grade so that all leach solution eventually drains to the pump's sump, //6.
  • Asphaultic concrete is used for the leach pad as this material is reletively unaffected by an acidic solution and can withstand movement of heavy equipment thereby enabling a final clean-up of oxidized ore with a rubber tired front end loader, #5 is an air vent at the skirt of the clear plastic green house membrane for entrance of oxygen.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Biotechnology (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A method for biologically heap leaching ore within a greenhouse.

Description

PATENT APPLICATION
HEAP LEACH BIO OXIDIZATION
Treatment of refractory base and precious metal ore requires expensive crushing, milling, and flotation followed by pyro etalurgical reduction.
BRIEF DESCRIPTION OF THE DRAWING
The drawing, no scale, shows a transverse cross section . of a loaded biologocal oxdization heap leach pad.
The launder, rehandling equipment, precipitate colunm(s), pulp collection and pumping equipment and second leach pad for receiving the laundered, unoxdizied ore are not showen. Alternatively, the launder could consist of a Variable Capacity Improved and Leases Plane Table having a very small grooves, for example minus 40 mesh. 0 The table could tbnn discharge extracted concentrate directly into the precipitate columns.
Applicant's patent application 08/864,698, Variable Capacity Improved Rand Leases Plane Table is hereby incorporated into this application by reference.
DETAILED DESCRIPTION OF THE DRAWING
//I is the clear plastic, 10 mil plus, green house membrane providing for entrance of sunlight, retention of humidity, elevation of temperature and control of liquid process volumes in the necessary out door env or- n ent .
#2 is one branch of the perforated, small diameter, high preasure plastic irrigation pipe line from the in- ter itently timed pump, #7. The support systems for #1&2 may be intergral from the ore stockpile, #3, heaped surface. #4 is the self draining asphaultic concrete leach pad which is built with an apposite transverse and longitudinal grade so that all leach solution eventually drains to the pump's sump, //6. Asphaultic concrete is used for the leach pad as this material is reletively unaffected by an acidic solution and can withstand movement of heavy equipment thereby enabling a final clean-up of oxidized ore with a rubber tired front end loader,, #5 is an air vent at the skirt of the clear plastic green house membrane for entrance of oxygen.

Claims

I Claim:
I.) A method for biologically heap leaching ore within a green house. II.) The green house of calim 1 which comprises a clear plastic membrane over the top of said heap. III.) The method of claim 1 which comprises recirculating irrigation.
IV. ) The method of calim 1 which further comprises an asphaultic concrete heap leach pad.
V. ) Laundering bio oxdized heap leach ore.
VI.) Column preciptation of bio oxdized heap leach pulp. VII.) A method for production of trivalent arsenic which comprises bio oxdizing refractory ore within a green house . VIII.) The method of claim 7 which further comprises column preciptation. IX.) Laundering oxdized ore over a minus 40 mesh variable capacity improved rand leases plane table for extraction of a pulp heavy mineral concentr e.
PCT/IB2000/000928 2000-07-01 2000-07-01 Heap leach bio oxidization Ceased WO2002002832A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2000/000928 WO2002002832A1 (en) 2000-07-01 2000-07-01 Heap leach bio oxidization
AU54217/00A AU5421700A (en) 2000-07-01 2000-07-01 Heap leach bio oxidisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2000/000928 WO2002002832A1 (en) 2000-07-01 2000-07-01 Heap leach bio oxidization

Publications (1)

Publication Number Publication Date
WO2002002832A1 true WO2002002832A1 (en) 2002-01-10

Family

ID=11003946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2000/000928 Ceased WO2002002832A1 (en) 2000-07-01 2000-07-01 Heap leach bio oxidization

Country Status (2)

Country Link
AU (1) AU5421700A (en)
WO (1) WO2002002832A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992179A (en) * 1984-10-17 1991-02-12 Vistatech Partnership, Ltd. Metal recovery
US5785735A (en) * 1993-06-04 1998-07-28 Raskin; Ilya Phytoremediation of metals
US5917117A (en) * 1996-03-21 1999-06-29 Phytotech, Inc. Inducing hyperaccumulation of metals in plant shoots

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992179A (en) * 1984-10-17 1991-02-12 Vistatech Partnership, Ltd. Metal recovery
US5785735A (en) * 1993-06-04 1998-07-28 Raskin; Ilya Phytoremediation of metals
US5928406A (en) * 1993-06-04 1999-07-27 Salt; David E. Conversion of metal oxidation states by phytoreduction
US6159270A (en) * 1993-06-04 2000-12-12 Edenspace Systems Corporation Phytoremediation of metals
US5917117A (en) * 1996-03-21 1999-06-29 Phytotech, Inc. Inducing hyperaccumulation of metals in plant shoots

Also Published As

Publication number Publication date
AU5421700A (en) 2002-01-14

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