FI68864C - Foerfarande foer tillvaratagning av grundaemnessvavel och vaerdemetaller - Google Patents
Foerfarande foer tillvaratagning av grundaemnessvavel och vaerdemetaller Download PDFInfo
- Publication number
- FI68864C FI68864C FI790750A FI790750A FI68864C FI 68864 C FI68864 C FI 68864C FI 790750 A FI790750 A FI 790750A FI 790750 A FI790750 A FI 790750A FI 68864 C FI68864 C FI 68864C
- Authority
- FI
- Finland
- Prior art keywords
- copper
- enrichment
- sulfur
- process according
- recovered
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 4
- 239000002184 metal Substances 0.000 title claims description 4
- 230000003750 conditioning effect Effects 0.000 title 1
- 239000010949 copper Substances 0.000 claims description 62
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 57
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 56
- 229910052802 copper Inorganic materials 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 53
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 41
- 229910052750 molybdenum Inorganic materials 0.000 claims description 41
- 239000011733 molybdenum Substances 0.000 claims description 41
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 34
- 239000010931 gold Substances 0.000 claims description 34
- 229910052737 gold Inorganic materials 0.000 claims description 34
- 229910052717 sulfur Inorganic materials 0.000 claims description 31
- 239000011593 sulfur Substances 0.000 claims description 27
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 18
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 claims description 18
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 18
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 11
- 238000001704 evaporation Methods 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 6
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- ZGSDJMADBJCNPN-UHFFFAOYSA-N [S-][NH3+] Chemical compound [S-][NH3+] ZGSDJMADBJCNPN-UHFFFAOYSA-N 0.000 claims description 4
- 238000004090 dissolution Methods 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims 7
- 238000005187 foaming Methods 0.000 claims 1
- 239000012141 concentrate Substances 0.000 description 38
- 238000000605 extraction Methods 0.000 description 31
- 238000005188 flotation Methods 0.000 description 21
- 238000011084 recovery Methods 0.000 description 20
- 239000000706 filtrate Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052951 chalcopyrite Inorganic materials 0.000 description 6
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000010970 precious metal Substances 0.000 description 6
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 5
- 229910052935 jarosite Inorganic materials 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 4
- 238000009854 hydrometallurgy Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910052683 pyrite Inorganic materials 0.000 description 4
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 4
- 239000011028 pyrite Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000008396 flotation agent Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 229920001021 polysulfide Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 2
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 2
- 229940045803 cuprous chloride Drugs 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000005078 molybdenum compound Substances 0.000 description 2
- 150000002752 molybdenum compounds Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000416536 Euproctis pseudoconspersa Species 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal cyanide Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910001779 copper mineral Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910000462 iron(III) oxide hydroxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052961 molybdenite Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 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
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/34—Obtaining molybdenum
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
-
- 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
-
- 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
- C22B15/0069—Leaching or slurrying with acids or salts thereof containing halogen
-
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/894,515 US4138248A (en) | 1978-04-10 | 1978-04-10 | Recovery of elemental sulfur and metal values from tailings from copper recovery processes |
| US89451578 | 1978-04-10 | ||
| PCT/US1978/000225 WO1979000906A1 (fr) | 1978-04-10 | 1978-12-18 | Recuperation de soufre elementaire et de produits metalliques a partir des queues provenant de procedes de recuperation du cuivre |
| US7800225 | 1978-12-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI790750A7 FI790750A7 (fi) | 1979-10-11 |
| FI68864B FI68864B (fi) | 1985-07-31 |
| FI68864C true FI68864C (fi) | 1985-11-11 |
Family
ID=25403181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI790750A FI68864C (fi) | 1978-04-10 | 1979-03-05 | Foerfarande foer tillvaratagning av grundaemnessvavel och vaerdemetaller |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4138248A (fr) |
| EP (1) | EP0015938A1 (fr) |
| JP (1) | JPS55500223A (fr) |
| AU (1) | AU526719B2 (fr) |
| BE (1) | BE875468A (fr) |
| CA (1) | CA1114174A (fr) |
| DK (1) | DK524979A (fr) |
| FI (1) | FI68864C (fr) |
| FR (1) | FR2422588A1 (fr) |
| GB (1) | GB2035982B (fr) |
| SE (1) | SE7910115L (fr) |
| WO (1) | WO1979000906A1 (fr) |
| ZA (1) | ZA791704B (fr) |
| ZM (1) | ZM3479A1 (fr) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4236918A (en) * | 1979-01-15 | 1980-12-02 | Cyprus Metallurgical Processes Corporation | Recovery of elemental sulfur and metal values from tailings from copper recovery processes |
| US4634467A (en) * | 1985-07-30 | 1987-01-06 | Duval Corporation | Hydrometallurgical process for copper recovery |
| US4766554A (en) * | 1985-12-31 | 1988-08-23 | The Boeing Company | Ultrasonic inspection system with linear transducer array |
| US4799177A (en) * | 1985-12-31 | 1989-01-17 | The Boeing Company | Ultrasonic instrumentation for examination of variable-thickness objects |
| US5013359A (en) * | 1988-10-31 | 1991-05-07 | Hydrochem Developments Ltd. | Process for recovering gold from refractory sulfidic ores |
| US5807479A (en) * | 1994-07-15 | 1998-09-15 | Coproco Development Corporation | Process for recovering copper from copper-containing material |
| US5795465A (en) * | 1994-07-15 | 1998-08-18 | Coproco Development Corporation | Process for recovering copper from copper-containing material |
| AUPP543798A0 (en) | 1998-08-24 | 1998-09-17 | Technological Resources Pty Limited | Hydrometallurgical extraction of copper and other valuable metals |
| RU2186020C2 (ru) * | 1999-09-13 | 2002-07-27 | Кабардино-Балкарский государственный университет | Способ получения серы |
| ITMI20061033A1 (it) | 2006-05-26 | 2007-11-27 | Engitec Technologies S P A | Processo per il recupero di zolfo elementare da residui prodotti in processi idrometallurgici |
| US7824633B2 (en) * | 2006-11-21 | 2010-11-02 | Freeport-Mcmoran Corporation | System and method for conversion of molybdenite to one or more molybdenum oxides |
| WO2009037596A2 (fr) * | 2007-09-17 | 2009-03-26 | Barrick Gold Corporation | Procédé d'amélioration de la récupération d'or de minerais d'or doublement réfractaires |
| US8262770B2 (en) | 2007-09-18 | 2012-09-11 | Barrick Gold Corporation | Process for controlling acid in sulfide pressure oxidation processes |
| TR201002190T1 (tr) * | 2007-09-18 | 2010-08-23 | Barrick Gold Corporation | Altın ve gümüşün refrakter cevherlerinden geri kazanımına yönelik işlem |
| CN102787233A (zh) * | 2012-07-18 | 2012-11-21 | 山东国大黄金股份有限公司 | 一种冶炼烟气制酸过程产生的废酸循环综合利用的方法 |
| CN103212481A (zh) * | 2013-04-12 | 2013-07-24 | 江西理工大学 | 一种含砷硫铁矿的浮选工艺 |
| CN106513181B (zh) * | 2016-11-22 | 2019-11-08 | 广西大学 | 一种硫化矿含金矿石的浮选方法 |
| PL422508A1 (pl) * | 2017-08-09 | 2019-02-11 | Instytut Chemii i Techniki Jądrowej | Sposób ługowania metali z pomiedziowych odpadów poflotacyjnych z pirometalurgicznej metody produkcji miedzi |
| CN113893951B (zh) * | 2021-10-22 | 2023-09-19 | 普洱山海工贸有限公司 | 一种铜尾矿中高效环保浮选回收硫铁精矿的绿色工艺 |
| GR1010931B (el) * | 2024-03-15 | 2025-05-02 | Σωκρατης Ιωαννη Αργυροπουλος | Υδρομεταλλουργικη μεθοδος παραγωγης ανακτησης χαλκου απο copper oil sludge, με τη χρηση ανοργανων και οργανικων προτυπων, συνθετων, υδατικων διαλυματων και γεωπολυμερων υλικων |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US683325A (en) * | 1899-11-13 | 1901-09-24 | Golden Link Cons Gold Mines Ltd | Extraction of precious metals from their ores. |
| US1574987A (en) * | 1922-12-19 | 1926-03-02 | Union Sulphur Company | Method of producing purified sulphur |
| US2658827A (en) * | 1950-04-12 | 1953-11-10 | R Alfonso Rizo-Patron | Method of recovering precious and base metals |
| US2878102A (en) * | 1955-11-30 | 1959-03-17 | Continental Ore Corp | Recovery of metallic and non-metallic values from sulfide and sulfide-oxide ores |
| US3834893A (en) * | 1969-03-26 | 1974-09-10 | Kennecott Copper Corp | Combined chemical treatment and flotation process for recovering relatively high grade molybdenite from off grade or low grade ore materials |
| US3645455A (en) * | 1969-04-04 | 1972-02-29 | Kennecott Copper Corp | Production of lubricant-grade molybdenite from byproduct concentrates of porphyry copper ores |
| US3640703A (en) * | 1970-07-09 | 1972-02-08 | Chemical Refiners Inc | Cyclic integrated copper process |
| CA953924A (en) * | 1971-02-19 | 1974-09-03 | Cominco Ltd. | Hydrometallurgical process for extraction of copper and sulphur from copper-iron sulphides |
| CA953925A (en) * | 1971-03-05 | 1974-09-03 | Godefridus M. Swinkels | Hydrometallurgical process for treating copper-iron sulphides |
| US3785944A (en) * | 1971-10-07 | 1974-01-15 | Duval Corp | Hydrometallurgical process for the production of copper |
| US3879272A (en) * | 1971-10-07 | 1975-04-22 | Duval Corp | Hydrometallurgical process for the production of copper |
| US3798026A (en) * | 1972-03-27 | 1974-03-19 | Cominco Ltd | Copper hydrometallurgy |
| US3923616A (en) * | 1973-10-01 | 1975-12-02 | Du Pont | Recovery of metal values from ores |
| US3972711A (en) * | 1975-03-03 | 1976-08-03 | Cyprus Metallurigical Processes Corporation | Cuprous chloride recovery process |
| US4013457A (en) * | 1975-02-24 | 1977-03-22 | Cyprus Metallurgical Processes Corporation | Process for the recovery of cuprous chloride in the presence of metal impurities |
| US4011072A (en) * | 1975-05-27 | 1977-03-08 | Inspiration Consolidated Copper Company | Flotation of oxidized copper ores |
| US4039324A (en) * | 1975-11-14 | 1977-08-02 | Cyprus Metallurgical Processes Corporation | Fluidized hydrogen reduction process for the recovery of copper |
| US4083921A (en) * | 1977-01-03 | 1978-04-11 | Kennecott Copper Corporation | Purifying molybdenum flotation concentrates |
-
1978
- 1978-04-10 US US05/894,515 patent/US4138248A/en not_active Expired - Lifetime
- 1978-12-18 GB GB7938773A patent/GB2035982B/en not_active Expired
- 1978-12-18 WO PCT/US1978/000225 patent/WO1979000906A1/fr not_active Ceased
- 1978-12-18 JP JP50058379A patent/JPS55500223A/ja active Pending
-
1979
- 1979-02-09 CA CA321,148A patent/CA1114174A/fr not_active Expired
- 1979-03-05 FI FI790750A patent/FI68864C/fi not_active IP Right Cessation
- 1979-04-05 FR FR7909240A patent/FR2422588A1/fr not_active Withdrawn
- 1979-04-09 AU AU45940/79A patent/AU526719B2/en not_active Ceased
- 1979-04-09 ZM ZM3479A patent/ZM3479A1/xx unknown
- 1979-04-10 BE BE0/194517A patent/BE875468A/fr not_active IP Right Cessation
- 1979-04-10 ZA ZA791704A patent/ZA791704B/xx unknown
- 1979-11-19 EP EP79900356A patent/EP0015938A1/fr not_active Withdrawn
- 1979-12-07 SE SE7910115A patent/SE7910115L/ unknown
- 1979-12-10 DK DK524979A patent/DK524979A/da not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU526719B2 (en) | 1983-01-27 |
| JPS55500223A (fr) | 1980-04-17 |
| GB2035982B (en) | 1982-07-07 |
| SE7910115L (sv) | 1979-12-07 |
| US4138248A (en) | 1979-02-06 |
| ZM3479A1 (en) | 1980-09-22 |
| WO1979000906A1 (fr) | 1979-11-15 |
| BE875468A (fr) | 1979-10-10 |
| FI68864B (fi) | 1985-07-31 |
| GB2035982A (en) | 1980-06-25 |
| FI790750A7 (fi) | 1979-10-11 |
| CA1114174A (fr) | 1981-12-15 |
| FR2422588A1 (fr) | 1979-11-09 |
| AU4594079A (en) | 1979-10-18 |
| DK524979A (da) | 1979-12-10 |
| EP0015938A1 (fr) | 1980-10-01 |
| ZA791704B (en) | 1980-04-30 |
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| MM | Patent lapsed |
Owner name: CYPRUS METALLURGICAL PROCESSES |