BRPI0510505A - gold recovery method - Google Patents

gold recovery method

Info

Publication number
BRPI0510505A
BRPI0510505A BRPI0510505-6A BRPI0510505A BRPI0510505A BR PI0510505 A BRPI0510505 A BR PI0510505A BR PI0510505 A BRPI0510505 A BR PI0510505A BR PI0510505 A BRPI0510505 A BR PI0510505A
Authority
BR
Brazil
Prior art keywords
gold
raw material
intermediate product
recovery method
chloride
Prior art date
Application number
BRPI0510505-6A
Other languages
Portuguese (pt)
Inventor
Olli Hyvorinen
Matti Haemaelaeinen
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Publication of BRPI0510505A publication Critical patent/BRPI0510505A/en

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
    • C22B11/044—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
    • 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
    • C22B11/06—Chloridising
    • 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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

MéTODO PARA RECUPERAçãO DE OURO A presente invenção refere-se a um método para recuperação de ouro de um produto intermediário ou resíduo de lixívia contendo enxofre e ferro gerados na lixiviação de uma matéria-prima sulfídica. A recuperação de ouro e de outros metais valiosos da matéria-prima sulfídica ocorre em uma atmosfera de cloreto. O ouro ontido no produto intermediário ou resíduo é lixiviado com cobre divalente e cloro em uma solução de cloreto de cobre (II)/ cloreto de sódio, em condições nas quais o potencial de oxi-redução se situa no intervalo de 650-750 mV e o pH entre 1,0 e 1,6. O ácido gerado durante a alimentação de cloro é neutralizado com um álcali adequado. A neutralização evita os custos de dissolução do ferro.GOLD RECOVERY METHOD The present invention relates to a method for recovering gold from an intermediate product or sulfur-containing bleach residue generated in the leaching of a sulfidic raw material. The recovery of gold and other valuable metals from the sulfidic raw material takes place in a chloride atmosphere. Gold on the intermediate product or residue is leached with divalent copper and chlorine in a copper (II) chloride / sodium chloride solution under conditions where the oxy-reduction potential is in the range 650-750 mV and pH between 1.0 and 1.6. The acid generated during chlorine feeding is neutralized with a suitable alkali. Neutralization avoids the costs of iron dissolution.

BRPI0510505-6A 2004-04-30 2005-04-25 gold recovery method BRPI0510505A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040621A FI117709B (en) 2004-04-30 2004-04-30 Procedure for the extraction of gold
PCT/FI2005/000194 WO2005106052A1 (en) 2004-04-30 2005-04-25 Method for recovering gold

Publications (1)

Publication Number Publication Date
BRPI0510505A true BRPI0510505A (en) 2007-10-30

Family

ID=35185129

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0510505-6A BRPI0510505A (en) 2004-04-30 2005-04-25 gold recovery method

Country Status (12)

Country Link
US (1) US20070245856A1 (en)
EP (1) EP1740730A1 (en)
CN (1) CN1950524A (en)
AP (1) AP2006003793A0 (en)
AR (1) AR049633A1 (en)
AU (1) AU2005238241A1 (en)
BR (1) BRPI0510505A (en)
CA (1) CA2564338A1 (en)
EA (1) EA009726B1 (en)
FI (1) FI117709B (en)
PE (1) PE20060226A1 (en)
WO (1) WO2005106052A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI118302B (en) 2006-02-17 2007-09-28 Outotec Oyj Procedure for the extraction of gold
KR100787205B1 (en) 2007-06-11 2007-12-21 광해방지사업단 Method for recovering precious metal using seawater from mining waste
CN100582261C (en) * 2008-04-08 2010-01-20 昆明贵研药业有限公司 Method and device for reclaiming platinum-silver-iodine form platinum-containing silver iodide slag
FI124954B (en) * 2013-04-30 2015-04-15 Outotec Oyj A process for preparing a solution containing gold and a process arrangement for recovering gold and silver
MX2018005014A (en) 2015-10-29 2018-08-01 Outotec Finland Oy Method for recovering gold.
CN105969990A (en) * 2016-06-20 2016-09-28 昆山鸿福泰环保科技有限公司 Method for adsorbing and recovering gold in activated carbon method
PL3822374T3 (en) * 2019-11-18 2024-01-29 Heraeus Deutschland GmbH & Co. KG Method for recovering pure metal
EP4200452A1 (en) * 2020-08-18 2023-06-28 Enviro Metals, LLC Metal refinement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551213A (en) * 1984-05-07 1985-11-05 Duval Corporation Recovery of gold
AP538A (en) * 1992-06-26 1996-09-18 Intec Pty Ltd Production of metal from minerals
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
FI113667B (en) * 2002-04-23 2004-05-31 Outokumpu Oy Method for recovering gold

Also Published As

Publication number Publication date
AU2005238241A1 (en) 2005-11-10
FI117709B (en) 2007-01-31
AR049633A1 (en) 2006-08-23
EA200601774A1 (en) 2007-04-27
CA2564338A1 (en) 2005-11-10
CN1950524A (en) 2007-04-18
EA009726B1 (en) 2008-02-28
PE20060226A1 (en) 2006-04-25
FI20040621A (en) 2005-10-31
EP1740730A1 (en) 2007-01-10
AP2006003793A0 (en) 2006-10-31
US20070245856A1 (en) 2007-10-25
WO2005106052A1 (en) 2005-11-10

Similar Documents

Publication Publication Date Title
BRPI0510505A (en) gold recovery method
PE20071266A1 (en) METHOD FOR RECOVERING GOLD FROM A RESIDUE OR INTERMEDIATE PRODUCT OF COPPER LEACHING
BRPI0607889A2 (en) method for the recovery of gold from sulphite concentrate
EA200800544A1 (en) NICHOLESULPHIDE ORE OR CONCENTRATES PROCESSING BY MEANS OF SODIUM CHLORIDE
AR060899A1 (en) A METHOD FOR RECOVERING COPPER FROM A COPPER SULFIDE MINERAL IN A REACTOR
AR039330A1 (en) METHOD FOR GOLD RECOVERY
PE20030700A1 (en) OXIDATION UNDER PRESSURE AND HIGH TEMPERATURE OF MINERALS AND MINERAL CONCENTRATES CONTAINING SILVER, USING CONTROLLED PRECIPITATION OF SULPHATE SPECIES
ES2713518T3 (en) Method for treating arsenic containing materials
BRPI0505976B8 (en) process to recover nickel or cobalt
NO20000204D0 (en) Process for separation and concentration
SE8401238L (en) PROCEDURE FOR EXPLOITING THE METAL WORLD OF IRON-INHALING MATERIAL
PE20040428A1 (en) METHOD FOR METAL RECOVERY USING CHLORIDE LEACHING AND EXTRACTION
PL1639144T3 (en) Method for recovering at least one metallic element like cesium from ore
AR049634A1 (en) METHOD FOR GOLD RECOVERY RELATED TO COPPER PRODUCTION
BRPI0412693A (en) method for processing sulfide ores containing precious metals
GB2248633A (en) Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides
US403616A (en) Edward hubbard russell
RO118138B1 (en) Hydrometallurgical process for separating and recovering bismuth
De Jager et al. A novel electrometallurgical process for the treatment of refractory gold concentrates
EP1228258A1 (en) Method of removal of impurities from gold concentrate containing sulfides
WO2022047337A3 (en) Direct leaching from sulfidic refractory ores or concentrates
NO142717B (en) PROCEDURE FOR EXPLOITING SELEN AND MERCURY OIL FROM METALLURGICAL PROCESS PRODUCTS
DOP2005000122A (en) PROCESSING OF MATERIALS THAT CONSUME ACIDS, THAT IMPLIES A TREATMENT WITH EFFLUENTS OF ACIDIC BIOOXIDATION
CU21815A1 (en) PROCEDURE FOR THE TREATMENT OF SULFUROUS MINERALS PRIOR TO THE EXTRACTION OF GOLD BY CYANURATION
GB190323848A (en) Improvements in the Treatment of Complex Ores.

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 4A E 6A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2099 DE 29/03/2011.