FI70252C - Foerfarande foer utvinning av koppar nickel och kobolt ur skaersten - Google Patents
Foerfarande foer utvinning av koppar nickel och kobolt ur skaersten Download PDFInfo
- Publication number
- FI70252C FI70252C FI793377A FI793377A FI70252C FI 70252 C FI70252 C FI 70252C FI 793377 A FI793377 A FI 793377A FI 793377 A FI793377 A FI 793377A FI 70252 C FI70252 C FI 70252C
- Authority
- FI
- Finland
- Prior art keywords
- copper
- nickel
- extraction
- cobalt
- slurry
- Prior art date
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 191
- 239000010949 copper Substances 0.000 claims description 180
- 229910052802 copper Inorganic materials 0.000 claims description 155
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 150
- 238000000605 extraction Methods 0.000 claims description 146
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 91
- 229910052759 nickel Inorganic materials 0.000 claims description 90
- 229910017052 cobalt Inorganic materials 0.000 claims description 77
- 239000010941 cobalt Substances 0.000 claims description 77
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 77
- 239000002002 slurry Substances 0.000 claims description 70
- 238000000034 method Methods 0.000 claims description 51
- 229910052717 sulfur Inorganic materials 0.000 claims description 50
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 48
- 239000011593 sulfur Substances 0.000 claims description 47
- 229910052742 iron Inorganic materials 0.000 claims description 45
- 230000001590 oxidative effect Effects 0.000 claims description 37
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 29
- 229910052760 oxygen Inorganic materials 0.000 claims description 29
- 239000001301 oxygen Substances 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- CYKLGTUKGYURDP-UHFFFAOYSA-L copper;hydrogen sulfate;hydroxide Chemical compound O.[Cu+2].[O-]S([O-])(=O)=O CYKLGTUKGYURDP-UHFFFAOYSA-L 0.000 claims description 18
- -1 ferrous metals Chemical class 0.000 claims description 12
- 238000011282 treatment Methods 0.000 claims description 12
- 239000008346 aqueous phase Substances 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 8
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 101
- 229910017709 Ni Co Inorganic materials 0.000 description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 18
- 229910003267 Ni-Co Inorganic materials 0.000 description 17
- 229910003262 Ni‐Co Inorganic materials 0.000 description 17
- 230000003647 oxidation Effects 0.000 description 16
- 238000007254 oxidation reaction Methods 0.000 description 16
- 238000001556 precipitation Methods 0.000 description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- 239000007787 solid Substances 0.000 description 14
- 239000003792 electrolyte Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 13
- 238000000926 separation method Methods 0.000 description 13
- 238000011084 recovery Methods 0.000 description 12
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 9
- 229910017521 Cu Ni Co Fe Inorganic materials 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000155 melt Substances 0.000 description 7
- 239000010970 precious metal Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000007792 addition Methods 0.000 description 4
- 238000010923 batch production Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 3
- 229910020598 Co Fe Inorganic materials 0.000 description 2
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical class [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- ZHDZZQCPMPRKFO-UHFFFAOYSA-N [Fe].[Ni].[Cu].[Co] Chemical compound [Fe].[Ni].[Cu].[Co] ZHDZZQCPMPRKFO-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical class [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 2
- 238000000658 coextraction Methods 0.000 description 2
- 229910001956 copper hydroxide Inorganic materials 0.000 description 2
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 1
- 239000005750 Copper hydroxide Substances 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000237537 Ensis Species 0.000 description 1
- 240000006890 Erythroxylum coca Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical class [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 1
- 235000008957 cocaer Nutrition 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009852 extractive metallurgy Methods 0.000 description 1
- 239000012527 feed solution Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 238000012546 transfer Methods 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/043—Sulfurated acids or salts thereof
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- 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)
- Conductive Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA314871 | 1978-10-30 | ||
| CA314,871A CA1106617A (en) | 1978-10-30 | 1978-10-30 | Autoclave oxidation leaching of sulfide materials containing copper, nickel and/or cobalt |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI793377A7 FI793377A7 (fi) | 1980-05-01 |
| FI70252B FI70252B (fi) | 1986-02-28 |
| FI70252C true FI70252C (fi) | 1986-09-15 |
Family
ID=4112761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI793377A FI70252C (fi) | 1978-10-30 | 1979-10-29 | Foerfarande foer utvinning av koppar nickel och kobolt ur skaersten |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4304644A (enExample) |
| JP (1) | JPS5562134A (enExample) |
| AU (1) | AU525738B2 (enExample) |
| CA (1) | CA1106617A (enExample) |
| FI (1) | FI70252C (enExample) |
| FR (1) | FR2440407B1 (enExample) |
| NO (1) | NO157105C (enExample) |
| ZA (1) | ZA795712B (enExample) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1147970A (en) * | 1980-12-23 | 1983-06-14 | Victor A. Ettel | Process for cobalt recovery from mixed sulfides |
| CA1173655A (en) * | 1981-10-30 | 1984-09-04 | Derek G.E. Kerfoot | Acid leach process for treating magnetic and non- magnetic nickel-copper mattes |
| CA1234290A (en) * | 1984-09-27 | 1988-03-22 | Donald R. Weir | Recovery of gold from refractory auriferous iron- containing sulphidic material |
| CA1235907A (en) * | 1984-09-27 | 1988-05-03 | Donald R. Weir | Recovery of gold from refractory auriferous iron- containing sulphidic concentrates |
| CA1234291A (en) * | 1984-09-27 | 1988-03-22 | Donald R. Weir | Recovery of gold from auriferous refractory iron- containing sulphidic material |
| CA1234991A (en) * | 1984-09-27 | 1988-04-12 | Donald R. Weir | Recovery of gold from auriferous refractory iron- containing sulphidic ore |
| CA1234289A (en) * | 1984-10-24 | 1988-03-22 | Derik G.E. Kerfoot | Recovery of platinum group metals from nickel-copper- iron matte |
| US4979987A (en) * | 1988-07-19 | 1990-12-25 | First Miss Gold, Inc. | Precious metals recovery from refractory carbonate ores |
| US5458866A (en) * | 1994-02-14 | 1995-10-17 | Santa Fe Pacific Gold Corporation | Process for preferentially oxidizing sulfides in gold-bearing refractory ores |
| US5489326A (en) * | 1994-10-04 | 1996-02-06 | Barrick Gold Corporation | Gold recovery using controlled oxygen distribution pressure oxidation |
| FI105926B (fi) * | 1998-03-16 | 2000-10-31 | Outokumpu Oy | Menetelmä nikkelin liuottamiseksi nikkelikivestä |
| RU2141452C1 (ru) * | 1998-05-26 | 1999-11-20 | ООО "Торговый дом "Красный химик" | Способ получения кобальт (ii) сульфата |
| RU2138446C1 (ru) * | 1998-05-26 | 1999-09-27 | ООО "Торговый дом "Красный химик" | Способ получения кобальт (ii) сульфата |
| AU4906800A (en) * | 1999-05-27 | 2000-12-18 | Hatch Associates Ltd. | Recovery of cobalt and nickel from iron-rich mattes and alloys by leaching |
| US6660059B2 (en) | 2000-05-19 | 2003-12-09 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| US6451088B1 (en) * | 2001-07-25 | 2002-09-17 | Phelps Dodge Corporation | Method for improving metals recovery using high temperature leaching |
| US6478847B1 (en) | 2001-08-31 | 2002-11-12 | Mueller Industries, Inc. | Copper scrap processing system |
| US7722840B2 (en) * | 2002-11-15 | 2010-05-25 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| US20040237721A1 (en) * | 2003-05-29 | 2004-12-02 | Morteza Baghalha | Anoxic leaching of precious metals with thiosulfate and precious metal oxidants |
| US7604783B2 (en) | 2004-12-22 | 2009-10-20 | Placer Dome Technical Services Limited | Reduction of lime consumption when treating refractor gold ores or concentrates |
| US8061888B2 (en) | 2006-03-17 | 2011-11-22 | Barrick Gold Corporation | Autoclave with underflow dividers |
| MX2008013892A (es) * | 2006-05-01 | 2008-11-14 | Phelps Dodge Corp | Proceso para la recuperacion de cobre a partir de material que contiene cobre, usando lixiviacion a presion, extraccion directa por via electronica y extraccion de disolvente/solucion. |
| US8252254B2 (en) | 2006-06-15 | 2012-08-28 | Barrick Gold Corporation | Process for reduced alkali consumption in the recovery of silver |
| ES2795401T3 (es) | 2010-12-07 | 2020-11-23 | Barrick Gold Corp | Lixiviación en resina a favor de la corriente o a contracorriente en procesos de lixiviación de oro |
| AR086933A1 (es) | 2011-06-15 | 2014-01-29 | Barrick Gold Corp | Metodo para recuperar metales preciosos y cobre de soluciones de lixiviado |
| US8931642B2 (en) | 2013-01-14 | 2015-01-13 | William D. Simmons | Activated flotation circuit for processing combined oxide and sulfide ores |
| US10161016B2 (en) | 2013-05-29 | 2018-12-25 | Barrick Gold Corporation | Method for pre-treatment of gold-bearing oxide ores |
| FI131460B1 (en) * | 2017-04-10 | 2025-05-05 | Univ Central South | METHOD AND SYSTEM FOR TOTAL RECOVERY AND USE OF COPPER-NICKEL SULPHIDE ORE |
| 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 |
| JP7112677B2 (ja) * | 2019-01-29 | 2022-08-04 | 住友金属鉱山株式会社 | コバルトの選択浸出方法 |
| CN116716479A (zh) * | 2023-05-25 | 2023-09-08 | 金川镍钴研究设计院有限责任公司 | 一种高镍铜合金硫化混合物的浸出方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2588265A (en) * | 1949-11-15 | 1952-03-04 | Chemical Construction Corp | Isolation of nickel sulfide |
| US2746859A (en) * | 1951-12-22 | 1956-05-22 | Chemical Construction Corp | Method of recovering non-ferrous metal values |
| US3174849A (en) * | 1961-10-05 | 1965-03-23 | Sherritt Gordon Mines Ltd | Two-stage oxidation and leaching process |
| US3616331A (en) * | 1968-08-03 | 1971-10-26 | Int Nickel Co | Recovery of nickel and copper from sulfides |
| DE1947535B1 (de) * | 1969-09-19 | 1971-08-26 | Norddeutsche Affinerie | Verfahren zum Aufschluss von Metalle und Sulfidschwefel enthaltenden Ausgangsstoffen |
| US3642435A (en) * | 1969-11-10 | 1972-02-15 | Cyprus Mines Corp | Method of recovering water-soluble nonferrous metal sulfates from sulfur-bearing ores |
| US3652265A (en) * | 1969-11-28 | 1972-03-28 | Engelhard Min & Chem | Recovery of metal values from nickel-copper mattes |
| US3741752A (en) * | 1971-01-22 | 1973-06-26 | Sherritt Gordon Mines Ltd | Acid leaching process for treating high grade nickel-copper mattes |
| CA965962A (en) * | 1972-05-08 | 1975-04-15 | International Nickel Company Of Canada | Separation of nickel from copper |
| US4039406A (en) * | 1973-08-10 | 1977-08-02 | Noranda Mines Limited | Recovering copper from concentrates with insoluble sulfate forming leach |
| US3975190A (en) * | 1975-05-23 | 1976-08-17 | Sherritt Gordon Mines Limited | Hydrometallurgical treatment of nickel and copper bearing intermediates |
-
1978
- 1978-10-30 CA CA314,871A patent/CA1106617A/en not_active Expired
-
1979
- 1979-10-22 US US06/087,426 patent/US4304644A/en not_active Expired - Lifetime
- 1979-10-25 AU AU52173/79A patent/AU525738B2/en not_active Ceased
- 1979-10-25 ZA ZA00795712A patent/ZA795712B/xx unknown
- 1979-10-26 NO NO793459A patent/NO157105C/no unknown
- 1979-10-29 FR FR7926740A patent/FR2440407B1/fr not_active Expired
- 1979-10-29 FI FI793377A patent/FI70252C/fi not_active IP Right Cessation
- 1979-10-30 JP JP14040679A patent/JPS5562134A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| ZA795712B (en) | 1980-10-29 |
| CA1106617A (en) | 1981-08-11 |
| JPS6247933B2 (enExample) | 1987-10-12 |
| AU525738B2 (en) | 1982-11-25 |
| FI793377A7 (fi) | 1980-05-01 |
| NO793459L (no) | 1980-05-02 |
| FI70252B (fi) | 1986-02-28 |
| FR2440407B1 (fr) | 1986-01-03 |
| FR2440407A1 (fr) | 1980-05-30 |
| US4304644A (en) | 1981-12-08 |
| NO157105B (no) | 1987-10-12 |
| AU5217379A (en) | 1980-05-15 |
| JPS5562134A (en) | 1980-05-10 |
| NO157105C (no) | 1988-01-20 |
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Owner name: INCO LIMITED |