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WO2001070004A3 - Solution mining process for removing metals from aqueous solution - Google Patents

Solution mining process for removing metals from aqueous solution Download PDF

Info

Publication number
WO2001070004A3
WO2001070004A3 PCT/US2001/005547 US0105547W WO0170004A3 WO 2001070004 A3 WO2001070004 A3 WO 2001070004A3 US 0105547 W US0105547 W US 0105547W WO 0170004 A3 WO0170004 A3 WO 0170004A3
Authority
WO
WIPO (PCT)
Prior art keywords
colloid
metal
particles
solution
metal particles
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/US2001/005547
Other languages
French (fr)
Other versions
WO2001070004A2 (en
Inventor
Barrett Keith
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
Priority claimed from US09/783,223 external-priority patent/US6555010B2/en
Application filed by Individual filed Critical Individual
Priority to AU2001243203A priority Critical patent/AU2001243203A1/en
Publication of WO2001070004A2 publication Critical patent/WO2001070004A2/en
Anticipated expiration legal-status Critical
Publication of WO2001070004A3 publication Critical patent/WO2001070004A3/en
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
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • C22B11/042—Recovery of noble metals from waste materials
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • 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
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • 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)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A process is disclosed for obtaining colloid-forming metal particles from an aqueous mine waste solution containing that metal in ionic form. In accordance with this process, an aqueous mine waste solution containing that metal in ionic form is provided having a pH value of about 4.0 to about 6.5. The solution is electrified with direct current at about 1.2 to about 2.0 volts to reduce the desired metal ions to colloidal metal particles. A slurry of cellulose particles is agitatingly added to the colloid composition followed by a flocculant to form a solid phase cellulosic floc containing the colloid. The solid and liquid phases are separated, and the solid phase is dried, fluxed and heated to a temperature sufficient to melt the flux and colloid and form larger metal particles that can then be recovered. The colloid-forming metal is preferably gold.
PCT/US2001/005547 2000-03-20 2001-02-21 Solution mining process for removing metals from aqueous solution Ceased WO2001070004A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001243203A AU2001243203A1 (en) 2000-03-20 2001-02-21 Solution mining process for removing metals from aqueous solution

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US60/191,130 2000-03-20
US19113000P 2000-03-22 2000-03-22
US09/783,223 2001-02-14
US09/783,223 US6555010B2 (en) 2000-03-22 2001-02-14 Solution mining process for removing metals from aqueous solution

Publications (2)

Publication Number Publication Date
WO2001070004A2 WO2001070004A2 (en) 2001-09-27
WO2001070004A3 true WO2001070004A3 (en) 2008-01-17

Family

ID=26886791

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/005547 Ceased WO2001070004A2 (en) 2000-03-20 2001-02-21 Solution mining process for removing metals from aqueous solution

Country Status (2)

Country Link
AU (1) AU2001243203A1 (en)
WO (1) WO2001070004A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102784A (en) * 1976-04-27 1978-07-25 Schlauch Richard M Colloid free precipitation of heavy metal sulfides
US5660735A (en) * 1994-10-31 1997-08-26 Hazen Research, Inc. Method for removing metals from waste solutions
US5698107A (en) * 1996-03-11 1997-12-16 Wurzburger; Stephen Ray Treatment for acid mine drainage
US5908559A (en) * 1995-05-19 1999-06-01 Kreisler; Lawrence Method for recovering and separating metals from waste streams
US5925256A (en) * 1996-09-25 1999-07-20 Eastman Kodak Company Method for eliminating iron from a photographic effluent

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102784A (en) * 1976-04-27 1978-07-25 Schlauch Richard M Colloid free precipitation of heavy metal sulfides
US5660735A (en) * 1994-10-31 1997-08-26 Hazen Research, Inc. Method for removing metals from waste solutions
US5908559A (en) * 1995-05-19 1999-06-01 Kreisler; Lawrence Method for recovering and separating metals from waste streams
US5698107A (en) * 1996-03-11 1997-12-16 Wurzburger; Stephen Ray Treatment for acid mine drainage
US5925256A (en) * 1996-09-25 1999-07-20 Eastman Kodak Company Method for eliminating iron from a photographic effluent

Also Published As

Publication number Publication date
AU2001243203A1 (en) 2001-10-03
AU2001243203A8 (en) 2008-03-13
WO2001070004A2 (en) 2001-09-27

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