AR068241A1 - Metodo para la oxidacion a presion de un material de sulfuro que contiene un metal precioso. - Google Patents

Metodo para la oxidacion a presion de un material de sulfuro que contiene un metal precioso.

Info

Publication number
AR068241A1
AR068241A1 ARP080104048A ARP080104048A AR068241A1 AR 068241 A1 AR068241 A1 AR 068241A1 AR P080104048 A ARP080104048 A AR P080104048A AR P080104048 A ARP080104048 A AR P080104048A AR 068241 A1 AR068241 A1 AR 068241A1
Authority
AR
Argentina
Prior art keywords
precious metal
mercury
halogen
liquid phase
sulfide
Prior art date
Application number
ARP080104048A
Other languages
English (en)
Original Assignee
Barrick Gold Corp
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 Barrick Gold Corp filed Critical Barrick Gold Corp
Publication of AR068241A1 publication Critical patent/AR068241A1/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
    • 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
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • 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
    • C22B3/04—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
    • 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)
  • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Reivindicacion 1: Un método caracterizado porque comprende: (a) proporcionar una alimentacion en pasta, que comprende (i) en la fase solida, un material conteniendo sulfuro refractario, comprendiendo el material al menos aproximadamente 0.05 oz/tonne de un metal precioso, al menos aproximadamente 0.75% en peso de sulfuros, y al menos aproximadamente 0.5 ppm de mercurio y (ii) al menos un halogeno; (b) oxidar el material conteniendo sulfuro a temperatura elevada y presion super-atmosférica para convertir al menos la mayoría del azufre de sulfuro a azufre de sulfato y forman un material conteniendo metal precioso oxidado, en donde, durante el paso (b), la disolucion de mercurio a partir del material conteniendo sulfuro es inhibido al realizar al menos uno de los siguientes: (C1) mantener una concentracion de hierro ferroso disuelto en una fase líquida de la alimentacion en pasta de al menos aproximadamente 0.5 g/l; (C2) mantener al menos aproximadamente 10% mol del hierro soluble en la fase líquida en el estado ferroso; (C3) mantener un potencial de oxidacion/reduccion (ORP) de no más de aproximadamente 530 milivolts, en relacion a un electrodo de cloruro de plata estándar); (C4) contactar el halogeno con un componente que provoca la formacion de un producto de reaccion conteniendo halogeno que no comprende el metal precioso o mercurio y es substancialmente insoluble en la fase líquida; y (C5) contactar el halogeno con un componente que provoca la formacion de un producto de reaccion conteniendo halogeno que no comprende el metal precioso o mercurio, es más estable bajo las condiciones de operacion de paso (b) que un complejo de halogeno comprendiendo el mercurio, y es substancialmente soluble en la fase líquida; y (c) posteriormente recuperar el metal precioso del material conteniendo metal precioso oxidado para formar un producto de metal precioso, en donde no más de aproximadamente 25% del mercurio en el material se disuelve en la fase líquida durante el paso (b).
ARP080104048A 2007-09-18 2008-09-17 Metodo para la oxidacion a presion de un material de sulfuro que contiene un metal precioso. AR068241A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US97336507P 2007-09-18 2007-09-18

Publications (1)

Publication Number Publication Date
AR068241A1 true AR068241A1 (es) 2009-11-11

Family

ID=40454675

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP080104048A AR068241A1 (es) 2007-09-18 2008-09-17 Metodo para la oxidacion a presion de un material de sulfuro que contiene un metal precioso.

Country Status (8)

Country Link
US (1) US7918919B2 (es)
AR (1) AR068241A1 (es)
AU (1) AU2008300274B2 (es)
CA (1) CA2699415C (es)
CL (1) CL2008002739A1 (es)
DO (1) DOP2010000082A (es)
PE (1) PE20090917A1 (es)
WO (1) WO2009037595A2 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8632742B2 (en) 2007-12-07 2014-01-21 Nalco Company Methods of controlling mercury emission
FI3290534T3 (fi) 2010-11-22 2023-11-20 Barrick Gold Corp Jalometallia sisältävien materiaalien emäksinen ja hapan painehapetus
US10167202B2 (en) 2016-02-23 2019-01-01 King Abdullah University Of Science And Technology Enhanced metal recovery through oxidation in liquid and/or supercritical carbon dioxide
US20220349024A1 (en) * 2019-07-05 2022-11-03 Newcrest Mining Limited Processing gold-containing ores

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289532A (en) * 1979-12-03 1981-09-15 Freeport Minerals Company Process for the recovery of gold from carbonaceous ores
US4552589A (en) * 1984-01-27 1985-11-12 Getty Oil Company Process for the recovery of gold from refractory ores by pressure oxidation
CA1228483A (en) * 1984-09-19 1987-10-27 Donald R. Weir Process for the pressure oxidation acid leaching of non-ferrous metal and iron-containing sulphidic material
CA1234291A (en) * 1984-09-27 1988-03-22 Donald R. Weir Recovery of gold from auriferous refractory iron- containing sulphidic material
US4738718A (en) * 1985-10-28 1988-04-19 Freeport Minerals Company Method for the recovery of gold using autoclaving
US4734270A (en) * 1986-04-11 1988-03-29 Touro Freddie J Sulfide treatment to inhibit mercury adsorption onto activated carbon in carbon-in-pulp gold recovery circuits
NZ229590A (en) 1988-06-17 1990-07-26 Fmc Technologies Ltd Extracting gold from mineral sulphides containing cu,sb,bi, as and fe using an aqueous ferric chloride/chlorine solution
US4923510A (en) * 1988-10-31 1990-05-08 Gopalan Ramadorai Treatment of refractory carbonaceous sulfide ores for gold recovery
US5096486A (en) * 1990-12-13 1992-03-17 Sunshine Precious Metals Incorporated Treatment of metal bearing mineral material
US5328669A (en) * 1993-01-26 1994-07-12 South Dakota School Of Mines And Technology Extraction of precious metals from ores and other precious metal containing materials using halogen salts
US5458866A (en) * 1994-02-14 1995-10-17 Santa Fe Pacific Gold Corporation Process for preferentially oxidizing sulfides in gold-bearing refractory ores
US5542957A (en) 1995-01-27 1996-08-06 South Dakota School Of Mines And Technology Recovery of platinum group metals and rhenium from materials using halogen reagents
US5653945A (en) * 1995-04-18 1997-08-05 Santa Fe Pacific Gold Corporation Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate
US5851499A (en) * 1996-09-11 1998-12-22 Newmont Gold Company Method for pressure oxidizing gold-bearing refractory sulfide ores having organic carbon
AUPP484498A0 (en) * 1998-07-24 1998-08-20 Aberfoyle Resources Limited Processing minerals
US6315812B1 (en) * 1999-04-28 2001-11-13 International Pgm Technologies Ltd Oxidative pressure leach recovery using halide ions
US20020152845A1 (en) * 1999-04-28 2002-10-24 Fleming Christopher A. Oxidative pressure leach recovery of precious metals using halide ions
US6641642B2 (en) * 2001-12-21 2003-11-04 Newmont Usa Limited High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate species
US6755891B2 (en) * 2002-04-16 2004-06-29 Cominco Engineering Services Ltd. Process for the treatment or removal of impurities in a hydrometallurgical extraction process
US20040156765A1 (en) * 2003-02-12 2004-08-12 Nichromet Extraction Inc. Gold and silver recovery from polymetallic sulfides by treatment with halogens
US7037482B2 (en) * 2003-03-10 2006-05-02 Teck Cominco Metals Ltd. Solvent extraction of a halide from a aqueous sulphate solution

Also Published As

Publication number Publication date
DOP2010000082A (es) 2010-04-15
US20090074608A1 (en) 2009-03-19
PE20090917A1 (es) 2009-07-13
US7918919B2 (en) 2011-04-05
AU2008300274A1 (en) 2009-03-26
CL2008002739A1 (es) 2009-08-07
WO2009037595A3 (en) 2011-04-28
CA2699415C (en) 2013-12-03
WO2009037595A2 (en) 2009-03-26
AU2008300274B2 (en) 2012-04-19
CA2699415A1 (en) 2009-03-26

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