IN2014MN01917A - - Google Patents
Info
- Publication number
- IN2014MN01917A IN2014MN01917A IN1917MUN2014A IN2014MN01917A IN 2014MN01917 A IN2014MN01917 A IN 2014MN01917A IN 1917MUN2014 A IN1917MUN2014 A IN 1917MUN2014A IN 2014MN01917 A IN2014MN01917 A IN 2014MN01917A
- Authority
- IN
- India
- Prior art keywords
- gold
- extraction
- concentrate
- organic solvent
- extract
- Prior art date
Links
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 7
- 239000010931 gold Substances 0.000 abstract 7
- 229910052737 gold Inorganic materials 0.000 abstract 7
- 238000000034 method Methods 0.000 abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 abstract 2
- 239000012141 concentrate Substances 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract 1
- 239000004133 Sodium thiosulphate Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910001629 magnesium chloride Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 150000002923 oximes Chemical class 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 abstract 1
- 235000019345 sodium thiosulphate Nutrition 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
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
- C22B3/10—Hydrochloric acid, other halogenated 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)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A process for the extraction of gold from a gold bearing ore or concentrate comprising the steps of leaching the gold bearing ore or concentrate with a lixiviant of hydrochloric acid and magnesium chloride at atmospheric pressure at a temperature of at least 90°C and an Eh of at least 900 mV. After a liquid/solids separation step the solution obtained is subjected to an organic solvent extraction step using an oxime to obtain a solution of organic solvent containing gold which is stripped with sodium thiosulphate to recover gold. The extraction may be operated to extract gold with or without iron. Materials used in the process may be recycled. The process avoids environmental and other hazards associated with the use of cyanide to extract gold.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261621617P | 2012-04-09 | 2012-04-09 | |
| PCT/CA2013/000337 WO2013152424A1 (en) | 2012-04-09 | 2013-04-08 | Chloride process for the leaching of gold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN2014MN01917A true IN2014MN01917A (en) | 2015-07-10 |
Family
ID=49326969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1917MUN2014 IN2014MN01917A (en) | 2012-04-09 | 2013-04-08 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9732398B2 (en) |
| EP (1) | EP2836617A4 (en) |
| AU (1) | AU2013247340A1 (en) |
| CA (1) | CA2869158C (en) |
| CL (1) | CL2014002703A1 (en) |
| IN (1) | IN2014MN01917A (en) |
| WO (1) | WO2013152424A1 (en) |
| ZA (1) | ZA201407203B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11427886B2 (en) | 2015-04-21 | 2022-08-30 | Excir Works Corp. | Methods for simultaneous leaching and extraction of precious metals |
| CN110607457A (en) * | 2019-10-18 | 2019-12-24 | 广西森合高新科技股份有限公司 | Refractory gold concentrate roasting slag leaching agent, gold leaching method and gold extraction method |
| WO2022022987A1 (en) * | 2020-07-27 | 2022-02-03 | Centuro Ag | Method for obtaining gold and silver from raw materials |
| LU102054B1 (en) * | 2020-07-27 | 2022-01-27 | Centuro Ag | Process for extracting gold and silver from raw materials |
| US11319613B2 (en) | 2020-08-18 | 2022-05-03 | Enviro Metals, LLC | Metal refinement |
| EP4256094A4 (en) * | 2021-01-22 | 2025-01-01 | Extrakt Process Solutions, LLC | RECOVERY OF METAL FROM BASE PROCESSING |
| WO2024170604A1 (en) | 2023-02-16 | 2024-08-22 | Université Libre de Bruxelles | A method for leaching gold from a gold-bearing substrate |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244735A (en) | 1979-07-27 | 1981-01-13 | Hazen Research, Inc. | Chloride leach process for recovering metal values in the presence of arsenic |
| DE3369704D1 (en) * | 1983-01-05 | 1987-03-12 | American Cyanamid Co | Extraction of silver and palladium metals from aqueous solutions using tertiary phosphine sulfides |
| US4551213A (en) * | 1984-05-07 | 1985-11-05 | Duval Corporation | Recovery of gold |
| CA1306613C (en) * | 1987-05-15 | 1992-08-25 | Guy Deschenes | Recovery of gold from aqueous solutions |
| US6660059B2 (en) * | 2000-05-19 | 2003-12-09 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| US6680034B2 (en) * | 2000-07-25 | 2004-01-20 | Phelps Dodge Corporation | Method for recovering metal values from metal-containing materials using high temperature pressure leaching |
| FI113667B (en) | 2002-04-23 | 2004-05-31 | Outokumpu Oy | Method for recovering gold |
| FI115534B (en) | 2002-10-15 | 2005-05-31 | Outokumpu Oy | Process for extraction of metals by means of chloride solution and extraction |
| JP3741117B2 (en) * | 2003-09-26 | 2006-02-01 | 住友金属鉱山株式会社 | Mutual separation of platinum group elements |
| CA2478516C (en) * | 2003-09-30 | 2007-12-11 | Jaguar Nickel Inc. | A process for the recovery of value metals from base metal sulfide ores |
| CA2513309C (en) | 2003-11-19 | 2010-06-15 | Process Research Ortech Inc. | Process for the recovery of titanium in mixed chloride media |
| WO2006013568A2 (en) | 2004-08-04 | 2006-02-09 | Berg Recycling Industries Ltd. | Recovery of precious metals from electronic scrap by hydrometallurgical processing |
| FI118429B (en) | 2005-02-16 | 2007-11-15 | Outokumpu Oy | Method for recovering gold from sulphide concentrate |
| FI117559B (en) | 2005-02-16 | 2006-11-30 | Outokumpu Oy | Procedure for extracting gold from a gold-containing solution |
| FI118302B (en) | 2006-02-17 | 2007-09-28 | Outotec Oyj | Procedure for the extraction of gold |
| ES2352404B1 (en) | 2009-08-04 | 2011-10-24 | Grupo Empresarial De Servicios Mecanicos, S.L | NUT MOUNTING SYSTEM ON SMOOTH AXLES. |
| WO2011156861A1 (en) * | 2010-06-15 | 2011-12-22 | The University Of Queensland | Method of recovering a metal |
-
2013
- 2013-04-08 IN IN1917MUN2014 patent/IN2014MN01917A/en unknown
- 2013-04-08 AU AU2013247340A patent/AU2013247340A1/en not_active Abandoned
- 2013-04-08 CA CA2869158A patent/CA2869158C/en active Active
- 2013-04-08 EP EP13775400.8A patent/EP2836617A4/en not_active Withdrawn
- 2013-04-08 WO PCT/CA2013/000337 patent/WO2013152424A1/en not_active Ceased
- 2013-04-08 US US13/858,147 patent/US9732398B2/en active Active
-
2014
- 2014-10-03 ZA ZA2014/07203A patent/ZA201407203B/en unknown
- 2014-10-08 CL CL2014002703A patent/CL2014002703A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CL2014002703A1 (en) | 2015-05-04 |
| EP2836617A1 (en) | 2015-02-18 |
| ZA201407203B (en) | 2017-08-30 |
| CA2869158A1 (en) | 2013-10-17 |
| AU2013247340A1 (en) | 2014-10-16 |
| EP2836617A4 (en) | 2016-01-13 |
| US9732398B2 (en) | 2017-08-15 |
| WO2013152424A1 (en) | 2013-10-17 |
| US20130283976A1 (en) | 2013-10-31 |
| CA2869158C (en) | 2021-01-05 |
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