CA2488146A1 - Inhibition of the depletion of precious metal values from pregnant lixiviant solutions - Google Patents
Inhibition of the depletion of precious metal values from pregnant lixiviant solutions Download PDFInfo
- Publication number
- CA2488146A1 CA2488146A1 CA002488146A CA2488146A CA2488146A1 CA 2488146 A1 CA2488146 A1 CA 2488146A1 CA 002488146 A CA002488146 A CA 002488146A CA 2488146 A CA2488146 A CA 2488146A CA 2488146 A1 CA2488146 A1 CA 2488146A1
- Authority
- CA
- Canada
- Prior art keywords
- recited
- metal ore
- compound
- gold
- iii
- 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
- 230000005764 inhibitory process Effects 0.000 title claims abstract 6
- 239000010970 precious metal Substances 0.000 title claims 3
- 238000000034 method Methods 0.000 claims abstract 30
- 239000002184 metal Substances 0.000 claims abstract 21
- 229910052751 metal Inorganic materials 0.000 claims abstract 21
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract 12
- 239000010931 gold Substances 0.000 claims abstract 12
- 229910052737 gold Inorganic materials 0.000 claims abstract 12
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 claims abstract 10
- 239000004094 surface-active agent Substances 0.000 claims abstract 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract 8
- 150000001299 aldehydes Chemical class 0.000 claims abstract 6
- 150000002148 esters Chemical class 0.000 claims abstract 6
- 238000007037 hydroformylation reaction Methods 0.000 claims abstract 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract 5
- 239000002280 amphoteric surfactant Substances 0.000 claims abstract 4
- 230000002401 inhibitory effect Effects 0.000 claims abstract 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000002386 leaching Methods 0.000 claims abstract 2
- 150000001875 compounds Chemical class 0.000 claims 10
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 claims 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 4
- CYHBDKTZDLSRMY-UHFFFAOYSA-N Hexyl 2-methylpropanoate Chemical compound CCCCCCOC(=O)C(C)C CYHBDKTZDLSRMY-UHFFFAOYSA-N 0.000 claims 4
- 150000001336 alkenes Chemical class 0.000 claims 4
- 125000004432 carbon atom Chemical group C* 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 3
- PFNHSEQQEPMLNI-UHFFFAOYSA-N 2-methyl-1-pentanol Chemical compound CCCC(C)CO PFNHSEQQEPMLNI-UHFFFAOYSA-N 0.000 claims 2
- LCFKURIJYIJNRU-UHFFFAOYSA-N 2-methylhexan-1-ol Chemical compound CCCCC(C)CO LCFKURIJYIJNRU-UHFFFAOYSA-N 0.000 claims 2
- FKLJPTJMIBLJAV-UHFFFAOYSA-N Compound IV Chemical compound O1N=C(C)C=C1CCCCCCCOC1=CC=C(C=2OCCN=2)C=C1 FKLJPTJMIBLJAV-UHFFFAOYSA-N 0.000 claims 2
- WOFVPNPAVMKHCX-UHFFFAOYSA-N N#C[Au](C#N)C#N Chemical class N#C[Au](C#N)C#N WOFVPNPAVMKHCX-UHFFFAOYSA-N 0.000 claims 2
- 229940079857 disodium cocoamphodipropionate Drugs 0.000 claims 2
- WSJWDSLADWXTMK-UHFFFAOYSA-L disodium;2-[2-(carboxylatomethoxy)ethyl-[2-(octanoylamino)ethyl]amino]acetate Chemical compound [Na+].[Na+].CCCCCCCC(=O)NCCN(CC([O-])=O)CCOCC([O-])=O WSJWDSLADWXTMK-UHFFFAOYSA-L 0.000 claims 2
- KJDVLQDNIBGVMR-UHFFFAOYSA-L disodium;3-[2-aminoethyl-[2-(2-carboxylatoethoxy)ethyl]amino]propanoate Chemical compound [Na+].[Na+].[O-]C(=O)CCN(CCN)CCOCCC([O-])=O KJDVLQDNIBGVMR-UHFFFAOYSA-L 0.000 claims 2
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims 2
- 239000003350 kerosene Substances 0.000 claims 2
- KESQFSZFUCZCEI-UHFFFAOYSA-N 2-(5-nitropyridin-2-yl)oxyethanol Chemical compound OCCOC1=CC=C([N+]([O-])=O)C=N1 KESQFSZFUCZCEI-UHFFFAOYSA-N 0.000 claims 1
- LGYNIFWIKSEESD-UHFFFAOYSA-N 2-ethylhexanal Chemical compound CCCCC(CC)C=O LGYNIFWIKSEESD-UHFFFAOYSA-N 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical class 0.000 abstract 1
- 239000003960 organic solvent Substances 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
- 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
-
- 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
- C22B11/08—Obtaining noble metals by cyaniding
-
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Methods for inhibiting depletion of metal values from pregnant lixiviant solutions comprise contacting the requisite metal ore with a prep-robbing inhibition agent (PRIA) comprising one of: (I) alkyl polyglucoside surfactants; (II) imidazoline based amphoteric surfactants; (III) hydroformylation products of lower (C2-C8) alkanes in an organic solvent medium, and (IV) esters and aldehydes. The method is particularly effective in heap leaching of gold with a cyanide lixiviant.
Claims (28)
1. In the leaching of metals from a metal ore in which a lixiviant solution is placed in contact with said metal ore to extract said metal therefrom in the form of a pregnant lixiviant solution, a method of inhibiting depletion of said extracted metal from said pregnant lixiviant solution, said method comprising contacting said metal ore with an effective amount of a preg-robbing inhibition agent (PRIA) comprising a member selected from the groups consisting of I, II, III, and IV and mixtures of said groups wherein I is an alkyl polyglucoside surfactant, II is an imidazoline based amphoteric surfactant, III comprises hydroformylation products of C2 - C8 alkenes in a C3 - C24 medium, and IV comprises an ester or aldehyde.
2. Method as recited in claim 1 wherein from about 0.024 - about 6 kg of said PRIA is brought into contact with said metal ore based upon 1 ton of said metal ore.
3. Method as recited in claim 2 wherein from about 0.5 - about 2.0 kg of said PRIA is brought into contact with said metal ore based upon 1 ton of said metal ore.
4. Method as recited in claim 1 wherein said metal ore comprises a precious metal.
5. Method as recited in claim 4 wherein said precious metal ore comprises gold.
6. Method as recited in claim 5 wherein said pregnant lixiviant solution comprises a cyanide solution.
7. Method as recited in claim 1 wherein I is present and comprises an alkyl group of about 4-20 carbon atoms and about 1-4 glucose units.
8. Method as recited in claim 7 wherein in I, said alkyl group has from about 8 to about 16 carbon atoms.
9. Method as recited in claim 1 wherein II is present and said amphoteric imidazoline surfactant comprises i) an amphopropionate compound; ii) an amphodipropionate compound; iii) an amphoacetate compound; or iv) an amphodiacetate compound.
10. Method as recited in claim 9 wherein said amphoteric imidazoline surfactant comprises disodium capryloamphodiacetate.
11. Method as recited in claim 10 wherein said amphoteric imidazoline surfactant comprises disodium cocoamphodipropionate.
12. Method as recited in claim 1 wherein III is present and said C1 - C8 alkene hydroformylation products comprise 2-ethylhexanol, 2-methylpentanol, 2-ethylhexanal; 2-methylhexanol in a medium containing C3 - C24 alcohols, aldehydes and esters.
13. Method as recited in claim 1 wherein said preg-robbing inhibition agent further comprises kerosene.
14. Method as recited in claim 1 wherein IV is present and comprises a compound having the formula wherein R1 is a C1-C12 hydrocarbyl radical, X is H, OR2, or when present, is a C1-C12 hydrocarbyl radical, R3 is a C1 - C12 hydrocarbyl radical, and R4 is H or a C1 - C12 hydrocarbyl radical.
15. Method as recited in claim 14 wherein said compound IV is a member selected from the group consisting of hexylisobutyrate and 2,2, 4 - trimethyl -1,3 -pentanediol diisobutyrate.
16. In a metal pulp comprising a gold metal ore and a pregnant lixiviant solution containing gold cyanide complexes, a method of inhibiting adsorption of said gold cyanide complexes by said gold metal ore comprising contacting said gold metal ore with an effective preg-robbing inhibition agent (PRIA) comprising a member selected from the groups consisting of I, II, III, and IV and mixtures of said groups wherein I is an alkyl polyglucoside surfactant, II is an imidazoline based amphoteric surfactant, III
comprises hydroformylation products of C2 - C8 alkenes in a C3 - C24 medium, and IV
comprises an ester or aldehyde.
comprises hydroformylation products of C2 - C8 alkenes in a C3 - C24 medium, and IV
comprises an ester or aldehyde.
17. Method as recited in claim 16 wherein from about 0.024 - about 6 kg of said PRIA is brought into contact with said gold metal ore based upon 1 ton of said gold metal ore.
18. Method as recited in claim 17 wherein from about 0.5 kg - about 2 kg of said PRIA is brought into contact with said gold metal ore based upon 1 ton of said gold metal ore.
19. Method as recited in claim 16 wherein I is present and comprises an alkyl group of about 4-20 carbon atoms and about 1-4 glucose units.
20. Method as recited in claim 19 wherein in I, said alkyl group has from about 8 to about 16 carbon atoms.
21. Method as recited in claim 16 wherein II is present and said amphoteric imidazoline surfactant comprises i) an amphopropionate compound; ii) an amphodipropionate compound; iii) an amphoacetate compound; or iv) an amphodiacetate compound.
22. Method as recited in claim 21 wherein said amphoteric imidazoline surfactant comprises disodium capryloamphodiacetate.
23. Method as recited in claim 22 wherein said amphoteric imidazoline surfactant comprises disodium cocoamphodipropionate.
24. Method as recited in claim 16 wherein III is present and said hydroformylation products comprise 2-ethylhexanol, 2-methylpentanol, 2-ethyhexanal; 2-methylhexanol in a medium containing C3 - C24 alcohols, aldehydes and esters.
25. Method as recited in claim 14 wherein said preg-robbing inhibition agent further comprises kerosene.
26. Method as recited in claim 16 wherein IV is present and comprises a compound having the formula wherein R1 is a C1-C12 hydrocarbyl radical, X is H, OR2, or when present, is a C1-C12 hydrocarbyl radical, R3 is a C1 - C12 hydrocarbyl radical, and R4 is H or a C1 - C12 hydrocarbyl radical.
27. Method as recited in claim 26 wherein said compound IV is a member selected from the group consisting of hexylisobutyrate and 2,2, 4 - trimethyl -1,3 -pentane diisobutyrate.
28. In a gold extraction process in which a lixiviant solution is brought into contact with a gold bearing ore to form a pregnant lixiviant solution, and wherein said pregnant lixiviant solution is contacted with activated carbon to aid in separating said gold from said pregnant lixiviant solution, the improvement comprising contacting said activated carbon with a member selected form the groups consisting of I, II, III, and IV and mixtures of said groups wherein I is an alkyl polyglucoside surfactant, II
is an imidazoline based amphoteric surfactant, III comprises hydroformylation products of C2 - C8 alkenes in a C3 - C24 medium, and IV comprises an ester or an aldehyde.
is an imidazoline based amphoteric surfactant, III comprises hydroformylation products of C2 - C8 alkenes in a C3 - C24 medium, and IV comprises an ester or an aldehyde.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/163,700 US20030228244A1 (en) | 2002-06-05 | 2002-06-05 | Inhibition of the depletion of metal values from pregnant lixiviant solutions |
| US10/163,700 | 2002-06-05 | ||
| US10/417,910 US7157062B2 (en) | 2002-06-05 | 2003-04-17 | Inhibition of the depletion of metal values from pregnant lixiviant solutions |
| US10/417,910 | 2003-04-17 | ||
| PCT/US2003/016184 WO2003104503A1 (en) | 2002-06-05 | 2003-05-22 | Inhibition of the depletion of precious metal values from pregnant lixiviant solutions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2488146A1 true CA2488146A1 (en) | 2003-12-18 |
| CA2488146C CA2488146C (en) | 2011-07-12 |
Family
ID=29738930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2488146A Expired - Fee Related CA2488146C (en) | 2002-06-05 | 2003-05-22 | Inhibition of the depletion of precious metal values from pregnant lixiviant solutions |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN100383263C (en) |
| AU (1) | AU2003237208B2 (en) |
| CA (1) | CA2488146C (en) |
| NZ (1) | NZ537325A (en) |
| WO (1) | WO2003104503A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122685B (en) | 2010-06-09 | 2012-05-31 | Outotec Oyj | A method for recovering gold by liquid-liquid extraction |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU451756A1 (en) * | 1970-12-25 | 1974-11-30 | Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов | The method of extraction of metals ores |
| CA1062918A (en) * | 1976-02-09 | 1979-09-25 | Kerr Addison Mines Limited | Milling of graphitic or carbonaceous ores |
| US4929274A (en) * | 1989-06-07 | 1990-05-29 | Drew Chemical Corporation | Recovery of metal values from ores |
| ZA919627B (en) * | 1990-09-18 | 1992-09-30 | Sentrachem Ltd | Leaching process |
| CA2132289A1 (en) * | 1993-10-12 | 1995-04-13 | Bharat Desai | Higher purity imidazoline based amphoacetate surfactants and processes for the preparation thereof |
-
2003
- 2003-05-22 AU AU2003237208A patent/AU2003237208B2/en not_active Ceased
- 2003-05-22 NZ NZ537325A patent/NZ537325A/en not_active IP Right Cessation
- 2003-05-22 CN CNB038188945A patent/CN100383263C/en not_active Expired - Fee Related
- 2003-05-22 CA CA2488146A patent/CA2488146C/en not_active Expired - Fee Related
- 2003-05-22 WO PCT/US2003/016184 patent/WO2003104503A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003104503A1 (en) | 2003-12-18 |
| NZ537325A (en) | 2006-10-27 |
| AU2003237208A1 (en) | 2003-12-22 |
| CN100383263C (en) | 2008-04-23 |
| CA2488146C (en) | 2011-07-12 |
| AU2003237208B2 (en) | 2008-11-20 |
| CN1675386A (en) | 2005-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150522 |