CA2386614A1 - The elution of gold from anion exchange resins - Google Patents
The elution of gold from anion exchange resins Download PDFInfo
- Publication number
- CA2386614A1 CA2386614A1 CA002386614A CA2386614A CA2386614A1 CA 2386614 A1 CA2386614 A1 CA 2386614A1 CA 002386614 A CA002386614 A CA 002386614A CA 2386614 A CA2386614 A CA 2386614A CA 2386614 A1 CA2386614 A1 CA 2386614A1
- Authority
- CA
- Canada
- Prior art keywords
- gold
- thiosulphate
- process according
- resin
- leach solution
- 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.)
- Granted
Links
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract 13
- 229910052737 gold Inorganic materials 0.000 title claims abstract 13
- 239000010931 gold Substances 0.000 title claims abstract 13
- 239000003957 anion exchange resin Substances 0.000 title claims abstract 4
- 238000010828 elution Methods 0.000 title claims 2
- 238000000034 method Methods 0.000 claims abstract 24
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 claims abstract 11
- 239000011347 resin Substances 0.000 claims abstract 9
- 229920005989 resin Polymers 0.000 claims abstract 9
- 150000002823 nitrates Chemical class 0.000 claims abstract 6
- 238000011084 recovery Methods 0.000 claims abstract 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 2
- 229910052802 copper Inorganic materials 0.000 claims 2
- 239000010949 copper Substances 0.000 claims 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims 1
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical group N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims 1
- 235000011130 ammonium sulphate Nutrition 0.000 claims 1
- 239000001166 ammonium sulphate Substances 0.000 claims 1
- CIBSCSHCRMBLHW-UHFFFAOYSA-L copper(1+);dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [Cu+].[Cu+].[O-]S([O-])(=O)=S CIBSCSHCRMBLHW-UHFFFAOYSA-L 0.000 claims 1
- 238000005363 electrowinning Methods 0.000 claims 1
- 238000002386 leaching Methods 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/04—Processes using organic exchangers
-
- 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
- C22B3/20—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)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
A process for the recovery of gold from anion exchange resins, the method comprising eluting with a nitrate salt to displace gold from the resin. The gold has been loaded on to the resin from a thiosulphate leach solution or pulp. The nitrate salt is preferably provided in the form of ammonium nitrate. Also provided is a process for the recovery of gold from thiosulphate leach solution or pulp, the method comprising the method steps of loading gold from a thiosulphate leach solution on to an anion exchange resin, eluting with a nitrate salt to displace gold from the resin, and recovering thiosulphate from the leach solution using a resin.
Claims (11)
1. A process for the recovery of gold from thiosulphate leach solution or pulp, the method comprising the method steps of:
a) Loading gold from a thiosulphate leach solution on to an anion exchange resin;
b) Eluting with a nitrate salt to displace gold from the resin; and c) Recovering gold from the eluate.
a) Loading gold from a thiosulphate leach solution on to an anion exchange resin;
b) Eluting with a nitrate salt to displace gold from the resin; and c) Recovering gold from the eluate.
2. A process according to claim 1, characterised in that the nitrate salt is provided in the form of ammonium nitrate.
3. A process according to claim 2, characterised in that the ammonium nitrate is provided at a concentration of less than or about 2M (160 g/L).
4. A process according to claim any one of the preceding claims, characterised in that gold is recovered in step c) by way of electrowinning or precipitation.
5. A process according to any one of the preceding claims, characterised by the additional method step of recovering thiosulphate from the leach solution by absorbing same onto a resin and subsequently eluting it therefrom.
6. A process according to claim 5, characterised in that the process further comprises the method step of recycling the recovered thiosulphate to a leaching process from which the thiosulphate leach solution was obtained.
7. A process according to claim 5 or 6, characterised in that the elution of thiosulphate from the resin is performed with either a nitrate or sulphate solution.
8. A process according to any one of the preceding claims, where the process is conducted in the presence of copper, characterised in that before eluting with a nitrate salt the method comprises the additional step of exposing the resin to excess oxygenated ammonia which displaces the copper, loaded on the resin as copper (I) thiosulphate, as copper (II) ammine.
9. A process according to claim 8, characterised in that a buffer is provided to maintain pH at about 9.2.
10.A process according to claim 9, characterised in that the buffer is ammonium sulphate.
11.A process for the recovery of gold from thiosulphate leach solution or pulp substantially as hereinbefore described with reference to the examples.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPQ3157A AUPQ315799A0 (en) | 1999-09-29 | 1999-09-29 | Improved process for the elution of gold from anion exchange resins |
| AUPQ3157 | 1999-09-29 | ||
| PCT/AU2000/001203 WO2001023626A1 (en) | 1999-09-29 | 2000-09-29 | The elution of gold from anion exchange resins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2386614A1 true CA2386614A1 (en) | 2001-04-05 |
| CA2386614C CA2386614C (en) | 2010-03-23 |
Family
ID=3817321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2386614A Expired - Fee Related CA2386614C (en) | 1999-09-29 | 2000-09-29 | The elution of gold from anion exchange resins |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AUPQ315799A0 (en) |
| CA (1) | CA2386614C (en) |
| WO (1) | WO2001023626A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2652337C1 (en) * | 2017-07-18 | 2018-04-25 | Общество с ограниченной ответственностью "Сольвекс" | Method of extracting of gold from water-salt solutions |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6660059B2 (en) | 2000-05-19 | 2003-12-09 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| ES2927467T3 (en) | 2010-12-07 | 2022-11-07 | Barrick Gold Corp | Cocurrent and countercurrent resin leaching in gold leaching processes |
| AR086933A1 (en) | 2011-06-15 | 2014-01-29 | Barrick Gold Corp | METHOD FOR RECOVERING PRECIOUS METALS AND COPPER OF LIXIVIATE SOLUTIONS |
| US10161016B2 (en) | 2013-05-29 | 2018-12-25 | Barrick Gold Corporation | Method for pre-treatment of gold-bearing oxide ores |
| RU2604287C1 (en) * | 2015-08-17 | 2016-12-10 | Лидия Алексеевна Воропанова | Method for selective extraction of gold and silver ions from hydrochloric acid solutions with tributyl phosphate |
| PE20211512A1 (en) | 2019-01-21 | 2021-08-11 | Barrick Gold Corp | METHOD FOR CARBON-CATALYZED THOSULFATE LEACHING OF MATERIALS CONTAINING GOLD |
| US20200377970A1 (en) | 2019-06-03 | 2020-12-03 | Barrick Gold Corporation | Method for recovering precious metals from thiosulfate leach solutions |
| CN114481229B (en) * | 2022-01-28 | 2023-07-25 | 江苏电科环保有限公司 | Precious metal recovery method for precious metal refining wastewater |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901572A (en) * | 1959-10-12 | 1962-07-18 | Permutit Co Ltd | Improvements in or relating to ion-exchange processes |
| US5785736A (en) * | 1995-02-10 | 1998-07-28 | Barrick Gold Corporation | Gold recovery from refractory carbonaceous ores by pressure oxidation, thiosulfate leaching and resin-in-pulp adsorption |
| CA2256764A1 (en) * | 1996-06-26 | 1997-12-31 | Henkel Corporation | Process for the recovery of precious metal values from aqueous ammoniacal thiosulfate leach solutions |
-
1999
- 1999-09-29 AU AUPQ3157A patent/AUPQ315799A0/en not_active Abandoned
-
2000
- 2000-09-29 CA CA2386614A patent/CA2386614C/en not_active Expired - Fee Related
- 2000-09-29 WO PCT/AU2000/001203 patent/WO2001023626A1/en active IP Right Grant
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2652337C1 (en) * | 2017-07-18 | 2018-04-25 | Общество с ограниченной ответственностью "Сольвекс" | Method of extracting of gold from water-salt solutions |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001023626A1 (en) | 2001-04-05 |
| AUPQ315799A0 (en) | 1999-10-21 |
| CA2386614C (en) | 2010-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |