PE20020002A1 - Metodo para lixiviacion con tiosulfato de materiales que contienen metales preciosos - Google Patents

Metodo para lixiviacion con tiosulfato de materiales que contienen metales preciosos

Info

Publication number
PE20020002A1
PE20020002A1 PE2001000447A PE2001000447A PE20020002A1 PE 20020002 A1 PE20020002 A1 PE 20020002A1 PE 2001000447 A PE2001000447 A PE 2001000447A PE 2001000447 A PE2001000447 A PE 2001000447A PE 20020002 A1 PE20020002 A1 PE 20020002A1
Authority
PE
Peru
Prior art keywords
precious metal
contacted
solution
less
thosulfate
Prior art date
Application number
PE2001000447A
Other languages
English (en)
Inventor
Christopher Andrew Fleming
Paul George West-Sells
Jinxing Ji
Ralph Peter Hackl
Original Assignee
Placer Dome Technical Services
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 Placer Dome Technical Services filed Critical Placer Dome Technical Services
Publication of PE20020002A1 publication Critical patent/PE20020002A1/es

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
    • 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
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • 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
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
    • 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
    • C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

DONDE EL METODO COMPRENDE: a) PONER EN CONTACTO DICHOS MATERIALES CON UN LIXIVIANTE DE TIOSULFATO, A UNA PRESION MUCHO MAYOR QUE LA ATMOSFERICA EN AUSENCIA DE COBRE Y/O AMONIACO AGREGADOS, PARA SOLUBILIZAR EL METAL PRECIOSO, Y FORMAR UNA SOLUCION DE LIXIVIACION DE TIOSULFATO IMPREGNANTE QUE CONTENGA AL METAL PRECIOSO SOLUBILIZADO; Y, b) RECUPERAR EL METAL PRECIOSO SOLUBILIZADO A PARTIR DE LA SOLUCION DE LIXIVIACION DE TIOSULFATO IMPREGNANTE. EL LIXIVIANTE DE TIOSULFATO TIENE UN pH MENOR DE 9, UNA TEMPERATURA DE 40°C A 80°C, UNA CONCENTRACION DE AMONIACO TOTAL MENOR A 0,05 M, NO MAS DE 0,01 M DE SULFITO AGREGADO, MENOS DE 20 ppm DE ION COBRE E INCLUYE OXIGENO MOLECULAR DISUELTO. PARA REDUCIR POLITIONATOS, SE PONE EN CONTACTO LA SOLUCION CON UN REACTIVO QUE CONTENGA SULFURO, PARA PRECIPITAR LA MAYOR PARTE DEL METAL PRECIOSO Y CONVERTIR EL POLITIONATO A TIOSULFATO; Y PARA REDUCIR TRITIONATOS, SE PONE EN CONTACTO LA SOLUCION CON UN AGENTE DE EXTRACCION TAL COMO RESINA DE INTERCAMBIO ANIONICO, A 60°C, PARA RECUPERAR EL METAL PRECIOSO Y CONVERTIR LOS TRIOTIONATOS A TIOSULFATOS. ADEMAS SE REFIERE A UN PROCESO DONDE LA SOLUCION SE PONE EN CONTACTO CON UN ADSORBENTE Y UNA VEZ CARGADO EL ADSORBENTE, SE PONE EN CONTACTO CON UN ELUYENTE DIFERENTE DE SULFITO, PARA DESORBER EL METAL PRECIOSO ADSORBIDO Y FORMAR UN ELUATO CARGADO QUE CONTIENE EL METAL PRECIOSO, RECUPERANDO EL METAL PRECIOSO DE DICHO ELUATO
PE2001000447A 2000-05-19 2001-05-18 Metodo para lixiviacion con tiosulfato de materiales que contienen metales preciosos PE20020002A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20547200P 2000-05-19 2000-05-19

Publications (1)

Publication Number Publication Date
PE20020002A1 true PE20020002A1 (es) 2002-01-17

Family

ID=22762320

Family Applications (1)

Application Number Title Priority Date Filing Date
PE2001000447A PE20020002A1 (es) 2000-05-19 2001-05-18 Metodo para lixiviacion con tiosulfato de materiales que contienen metales preciosos

Country Status (12)

Country Link
US (7) US6660059B2 (es)
AP (3) AP1710A (es)
AR (1) AR029927A1 (es)
AU (4) AU2001274393B2 (es)
CA (11) CA2745806C (es)
CL (2) CL2014001620A1 (es)
GB (1) GB2379212B (es)
MX (4) MX347621B (es)
OA (1) OA12272A (es)
PE (1) PE20020002A1 (es)
WO (1) WO2001088212A2 (es)
ZA (1) ZA200209063B (es)

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