AP140A - Dissolving values of platinum group metals from ores and concentrates. - Google Patents
Dissolving values of platinum group metals from ores and concentrates. Download PDFInfo
- Publication number
- AP140A AP140A APAP/P/1990/000185A AP9000185A AP140A AP 140 A AP140 A AP 140A AP 9000185 A AP9000185 A AP 9000185A AP 140 A AP140 A AP 140A
- Authority
- AP
- ARIPO
- Prior art keywords
- atom
- solution
- platinum group
- palladium
- platinum
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- -1 platinum group metals Chemical class 0.000 title claims abstract description 15
- 239000012141 concentrate Substances 0.000 title claims description 10
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 28
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 25
- 239000000243 solution Substances 0.000 claims description 16
- 229910052763 palladium Inorganic materials 0.000 claims description 15
- 229910052697 platinum Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 claims description 8
- 150000001450 anions Chemical class 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 150000004820 halides Chemical class 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 239000011669 selenium Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 150000003497 tellurium Chemical class 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- LULLIKNODDLMDQ-UHFFFAOYSA-N arsenic(3+) Chemical compound [As+3] LULLIKNODDLMDQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 229910052785 arsenic Inorganic materials 0.000 description 5
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 5
- 238000002386 leaching Methods 0.000 description 4
- 239000003446 ligand Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 150000004763 sulfides Chemical class 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910019093 NaOCl Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000004133 Sodium thiosulphate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical class [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 1
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 1
- 229940000489 arsenate Drugs 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000009852 extractive metallurgy Methods 0.000 description 1
- 238000009291 froth flotation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000001483 mobilizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 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
- C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
- C22B3/1608—Leaching with acyclic or carbocyclic agents
- C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
-
- 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
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB898914037A GB8914037D0 (en) | 1989-06-19 | 1989-06-19 | Dissolving values of platinum group metals from ores and concentrates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AP9000185A0 AP9000185A0 (en) | 1990-07-31 |
| AP140A true AP140A (en) | 1991-08-21 |
Family
ID=10658673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| APAP/P/1990/000185A AP140A (en) | 1989-06-19 | 1990-06-15 | Dissolving values of platinum group metals from ores and concentrates. |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0479814B1 (pt) |
| JP (1) | JPH05500239A (pt) |
| AP (1) | AP140A (pt) |
| AT (1) | ATE96182T1 (pt) |
| AU (1) | AU638721B2 (pt) |
| BR (1) | BR9007462A (pt) |
| CA (1) | CA2058969A1 (pt) |
| DE (1) | DE69004091T2 (pt) |
| DK (1) | DK0479814T3 (pt) |
| ES (1) | ES2046785T3 (pt) |
| FI (1) | FI95603C (pt) |
| GB (1) | GB8914037D0 (pt) |
| WO (1) | WO1990015887A1 (pt) |
| ZA (1) | ZA904747B (pt) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5354359A (en) * | 1992-04-01 | 1994-10-11 | Newmont Gold Co. | Hydrometallurgical process for the recovery of precious metal values from precious metal ores with thiosulfate lixiviant |
| RU2175678C1 (ru) * | 2000-05-03 | 2001-11-10 | ОАО "Красноярский завод цветных металлов имени В.Н. Гулидова" | Способ очистки рутения |
| US6660059B2 (en) | 2000-05-19 | 2003-12-09 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| US7722840B2 (en) | 2002-11-15 | 2010-05-25 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| AU2011340196B2 (en) | 2010-12-07 | 2015-12-10 | Barrick Gold Corporation | Co-current and counter current resin-in-leach in gold leaching processes |
| AR086933A1 (es) | 2011-06-15 | 2014-01-29 | Barrick Gold Corp | Metodo para recuperar metales preciosos y cobre de soluciones de lixiviado |
| US10161016B2 (en) | 2013-05-29 | 2018-12-25 | Barrick Gold Corporation | Method for pre-treatment of gold-bearing oxide ores |
| JP6835577B2 (ja) * | 2016-12-28 | 2021-02-24 | Ｊｘ金属株式会社 | 有価物の回収方法 |
| PE20211512A1 (es) | 2019-01-21 | 2021-08-11 | Barrick Gold Corp | Metodo para la lixiviacion con tiosulfato catalizado con carbon de materiales que contienen oro |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3401961A1 (de) * | 1983-02-22 | 1984-08-23 | Skw Trostberg Ag, 8223 Trostberg | Hydrometallurgische gewinnung von edelmetallen unter einsatz von thioharnstoff |
| GB2181722A (en) * | 1985-08-15 | 1987-04-29 | Roger Harper Little | Method for the recovery of precious metals from ores |
| US4925485A (en) * | 1983-12-27 | 1990-05-15 | Skw Trostberg Aktiengesellschaft | Process for the isolation of noble metals |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE95444C (pt) * | ||||
| US3545965A (en) * | 1968-06-27 | 1970-12-08 | Albert L Jacobs | Chemical gold mining |
| ZA84929B (en) * | 1983-02-22 | 1984-09-26 | Sueddeutsche Kalkstickstoff | Hydrometallurgical recovery of noble metals using thiourea |
| US4645535A (en) * | 1985-08-15 | 1987-02-24 | Little Roger H | Method for the recovery of precious metals from ores |
| PH21188A (en) * | 1985-09-10 | 1987-08-12 | Butler Dean | Leaching process |
-
1989
- 1989-06-19 GB GB898914037A patent/GB8914037D0/en active Pending
-
1990
- 1990-06-15 AP APAP/P/1990/000185A patent/AP140A/en active
- 1990-06-18 ES ES199090909059T patent/ES2046785T3/es not_active Expired - Lifetime
- 1990-06-18 DE DE90909059T patent/DE69004091T2/de not_active Expired - Fee Related
- 1990-06-18 AT AT90909059T patent/ATE96182T1/de active
- 1990-06-18 DK DK90909059.9T patent/DK0479814T3/da active
- 1990-06-18 CA CA002058969A patent/CA2058969A1/en not_active Abandoned
- 1990-06-18 WO PCT/GB1990/000938 patent/WO1990015887A1/en not_active Ceased
- 1990-06-18 JP JP2508660A patent/JPH05500239A/ja active Pending
- 1990-06-18 BR BR909007462A patent/BR9007462A/pt not_active Application Discontinuation
- 1990-06-18 EP EP90909059A patent/EP0479814B1/en not_active Expired - Lifetime
- 1990-06-18 AU AU58279/90A patent/AU638721B2/en not_active Ceased
- 1990-06-19 ZA ZA904747A patent/ZA904747B/xx unknown
-
1991
- 1991-12-18 FI FI915976A patent/FI95603C/fi not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3401961A1 (de) * | 1983-02-22 | 1984-08-23 | Skw Trostberg Ag, 8223 Trostberg | Hydrometallurgische gewinnung von edelmetallen unter einsatz von thioharnstoff |
| US4925485A (en) * | 1983-12-27 | 1990-05-15 | Skw Trostberg Aktiengesellschaft | Process for the isolation of noble metals |
| GB2181722A (en) * | 1985-08-15 | 1987-04-29 | Roger Harper Little | Method for the recovery of precious metals from ores |
Also Published As
| Publication number | Publication date |
|---|---|
| DK0479814T3 (da) | 1994-02-07 |
| FI95603B (fi) | 1995-11-15 |
| BR9007462A (pt) | 1992-06-16 |
| CA2058969A1 (en) | 1990-12-20 |
| ATE96182T1 (de) | 1993-11-15 |
| WO1990015887A1 (en) | 1990-12-27 |
| EP0479814A1 (en) | 1992-04-15 |
| AP9000185A0 (en) | 1990-07-31 |
| FI95603C (fi) | 1996-02-26 |
| AU5827990A (en) | 1991-01-08 |
| EP0479814B1 (en) | 1993-10-20 |
| GB8914037D0 (en) | 1989-08-09 |
| DE69004091T2 (de) | 1994-05-05 |
| ZA904747B (en) | 1992-02-26 |
| JPH05500239A (ja) | 1993-01-21 |
| AU638721B2 (en) | 1993-07-08 |
| ES2046785T3 (es) | 1994-02-01 |
| FI915976A0 (fi) | 1991-12-18 |
| DE69004091D1 (de) | 1993-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Prasad et al. | Modern trends in gold processing—overview | |
| US5169503A (en) | Process for extracting metal values from ores | |
| US5328669A (en) | Extraction of precious metals from ores and other precious metal containing materials using halogen salts | |
| US4925485A (en) | Process for the isolation of noble metals | |
| US4816235A (en) | Silver and manganese recovery using acidified thiourea | |
| US7985277B2 (en) | Process for extracting gold from gold-bearing ore | |
| US5851499A (en) | Method for pressure oxidizing gold-bearing refractory sulfide ores having organic carbon | |
| US4561947A (en) | Process for the recovery of noble metals from ores; which process uses thiourea | |
| US4283224A (en) | Separative treatment of anode slime | |
| WO1985000384A1 (en) | Improvements in or relating to the dissolution of noble metals | |
| US5308381A (en) | Ammonia extraction of gold and silver from ores and other materials | |
| EP1629129A2 (en) | Precious metal recovery using thiocyanate lixiviant | |
| US5114687A (en) | Ammonia extraction of gold and silver from ores and other materials | |
| Jha | Refractoriness of certain gold orestocyanidation: Probable causes and possible solutions | |
| US3767760A (en) | Process for recovery of precious metals from copper containing materials | |
| US4439235A (en) | Chlorination process for removing precious metals from ore | |
| AP140A (en) | Dissolving values of platinum group metals from ores and concentrates. | |
| US20160068927A1 (en) | Method of preparing a gold-containing solution and process arrangement for recovering gold and silver | |
| Warren et al. | Factors influencing the selective leaching of molybdenum with sodium hypochlorite from copper/molybdenum sulphide minerals | |
| US6406675B1 (en) | Method for reducing cyanide consumption during processing of gold and silver ores to remove base metals | |
| US7514050B2 (en) | Processing of acid-consuming mineral materials involving treatment with acidic biooxidation effluent | |
| US4185872A (en) | In-situ leaching of uranium | |
| KR0145346B1 (ko) | 할로겐 염을 이용하여 광물 또는 다른 귀금속 함유물질에서 귀금속을 추출하는 방법 | |
| EP0061468B1 (en) | Recovery of silver from ores and concentrates | |
| US4013754A (en) | Static leaching copper ore |