ZA200408280B - Process for the treatment or removal of impurities in a hydromettallurgical extraction process - Google Patents
Process for the treatment or removal of impurities in a hydromettallurgical extraction process Download PDFInfo
- Publication number
- ZA200408280B ZA200408280B ZA200408280A ZA200408280A ZA200408280B ZA 200408280 B ZA200408280 B ZA 200408280B ZA 200408280 A ZA200408280 A ZA 200408280A ZA 200408280 A ZA200408280 A ZA 200408280A ZA 200408280 B ZA200408280 B ZA 200408280B
- Authority
- ZA
- South Africa
- Prior art keywords
- pressure oxidation
- copper
- concentrate
- pressure
- subjecting
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 57
- 230000008569 process Effects 0.000 title claims description 26
- 239000012535 impurity Substances 0.000 title claims description 15
- 238000000605 extraction Methods 0.000 title description 3
- 230000003647 oxidation Effects 0.000 claims description 61
- 238000007254 oxidation reaction Methods 0.000 claims description 61
- 229910052802 copper Inorganic materials 0.000 claims description 56
- 239000010949 copper Substances 0.000 claims description 56
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 55
- 239000012141 concentrate Substances 0.000 claims description 53
- 239000007787 solid Substances 0.000 claims description 30
- 229910052785 arsenic Inorganic materials 0.000 claims description 26
- 239000006227 byproduct Substances 0.000 claims description 23
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 17
- -1 sulphate ions Chemical class 0.000 claims description 16
- 239000000706 filtrate Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000003929 acidic solution Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 229910052787 antimony Inorganic materials 0.000 claims description 7
- 229910052797 bismuth Inorganic materials 0.000 claims description 7
- 238000007670 refining Methods 0.000 claims description 7
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-M bisulphate group Chemical group S([O-])(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 claims description 6
- 229910052753 mercury Inorganic materials 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000002386 leaching Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 235000008504 concentrate Nutrition 0.000 description 44
- 229940108928 copper Drugs 0.000 description 40
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 21
- 239000002253 acid Substances 0.000 description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 235000010755 mineral Nutrition 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000002939 deleterious effect Effects 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- 229910017251 AsO4 Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229940000489 arsenate Drugs 0.000 description 1
- 150000001495 arsenic compounds Chemical class 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000014987 copper Nutrition 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005363 electrowinning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- C22B15/00—Obtaining copper
-
- 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
- C22B15/0002—Preliminary treatment
- C22B15/0004—Preliminary treatment without modification of the copper constituent
- C22B15/0008—Preliminary treatment without modification of the copper constituent 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
-
- 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
-
- 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
-
- 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
- C22B15/0084—Treating solutions
- C22B15/0089—Treating solutions by chemical methods
-
- 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
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
-
- 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
- C22B30/00—Obtaining antimony, arsenic or bismuth
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/122,346 US6755891B2 (en) | 2002-04-16 | 2002-04-16 | Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200408280B true ZA200408280B (en) | 2006-03-29 |
Family
ID=28790535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200408280A ZA200408280B (en) | 2002-04-16 | 2004-10-13 | Process for the treatment or removal of impurities in a hydromettallurgical extraction process |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US6755891B2 (es) |
| EP (1) | EP1495149B1 (es) |
| JP (1) | JP4360920B2 (es) |
| KR (1) | KR100742870B1 (es) |
| CN (1) | CN1280434C (es) |
| AR (1) | AR039437A1 (es) |
| AT (1) | ATE328125T1 (es) |
| AU (1) | AU2003218556B2 (es) |
| BR (1) | BR0309299B1 (es) |
| CA (1) | CA2481332C (es) |
| DE (1) | DE60305681T2 (es) |
| EA (1) | EA007662B1 (es) |
| ES (1) | ES2269991T3 (es) |
| MX (1) | MXPA04010244A (es) |
| PE (1) | PE20040023A1 (es) |
| PL (1) | PL198353B1 (es) |
| WO (1) | WO2003089677A1 (es) |
| ZA (1) | ZA200408280B (es) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7399454B2 (en) | 2004-04-29 | 2008-07-15 | Metalox International, Llc | Metallurgical dust reclamation process |
| US7124777B2 (en) * | 2004-09-03 | 2006-10-24 | Ranco Incorporated Of Delaware | Reversing valve with flowsplitter |
| PE20070861A1 (es) * | 2005-10-19 | 2007-08-29 | Dundee Precious Metals Inc | Procedimiento para recuperar valores metalicos a partir de materiales que contienen arsenico y/o antimonio |
| EP1999284A1 (en) * | 2006-03-28 | 2008-12-10 | Dundee Precious (Barbados) Inc. | Improved processing of metal values from concentrates |
| US8025859B2 (en) * | 2007-05-18 | 2011-09-27 | Cesl Limited | Process for gold and silver recovery from a sulphide concentrate |
| JP5188297B2 (ja) | 2007-07-13 | 2013-04-24 | Ｄｏｗａメタルマイン株式会社 | 砒素を含む非鉄製錬中間産物の処理方法 |
| JP2009242935A (ja) | 2007-07-13 | 2009-10-22 | Dowa Metals & Mining Co Ltd | 砒素を含むもののアルカリ処理方法 |
| JP2009242223A (ja) * | 2007-07-13 | 2009-10-22 | Dowa Metals & Mining Co Ltd | 三酸化二砒素の処理方法 |
| JP5188296B2 (ja) * | 2007-07-13 | 2013-04-24 | Ｄｏｗａメタルマイン株式会社 | 銅砒素化合物の処理方法 |
| JP5188298B2 (ja) * | 2007-08-09 | 2013-04-24 | Ｄｏｗａメタルマイン株式会社 | 砒素を含む非鉄製錬中間産物の処理方法 |
| US7918919B2 (en) * | 2007-09-18 | 2011-04-05 | Barrick Gold Corporation | Process for mercury control during pressure oxidation |
| SE533677C2 (sv) | 2009-04-05 | 2010-11-30 | Boliden Mineral Ab | Metod för att raffinera kopparbullion som innehåller antimon och/eller arsenik |
| KR101134501B1 (ko) | 2009-12-07 | 2012-04-13 | 주식회사 풍산 | 열플라즈마를 이용한 고순도 구리분말의 제조방법 |
| AU2014231718B2 (en) | 2013-03-14 | 2015-06-25 | Orway Mineral Consultants (Wa) Pty Ltd | Hydrometallurgical method for the removal of radionuclides from radioactive copper concentrates |
| KR101399953B1 (ko) * | 2013-11-20 | 2014-05-30 | 한국지질자원연구원 | 복합 구리광 선광방법 |
| US9410225B2 (en) * | 2014-05-13 | 2016-08-09 | Teck Resources Limited | Process for recovery of copper from arsenic-bearing and/or antimony-bearing copper sulphide concentrates |
| PE20170425A1 (es) * | 2014-08-11 | 2017-04-27 | Smidth As F L | Sistema y metodos para optimizar la eficiencia de concentrados de cobre de fundicion |
| CN104388671B (zh) * | 2014-10-30 | 2017-04-12 | 戴元宁 | 高银黝铜矿的化工冶金综合利用方法 |
| AR105261A1 (es) | 2015-07-06 | 2017-09-20 | Sherritt Int Corp | Recuperación de cobre de una alimentación de proceso que contiene arsénico |
| CA3054964A1 (en) | 2017-04-14 | 2018-10-18 | Sherritt International Corporation | Low acidity, low solids pressure oxidative leaching of sulphidic feeds |
| CN107794372B (zh) * | 2017-10-25 | 2019-08-30 | 湖南水口山有色金属集团有限公司 | 一种从铅阳极泥中选择性脱砷及废水处理零排放的方法 |
| JP7007905B2 (ja) * | 2017-12-27 | 2022-01-25 | Ｊｘ金属株式会社 | 銅の回収方法、及び電気銅の製造方法 |
| KR102283027B1 (ko) * | 2020-12-28 | 2021-07-28 | 한국광해관리공단 | 구리 추출 후의 침출수 내 잔류 구리 회수방법 |
| CN115216628B (zh) * | 2022-06-14 | 2023-09-22 | 云锡文山锌铟冶炼有限公司 | 从含铜砷酸性溶液中去除铜砷的方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA991416A (en) * | 1973-07-05 | 1976-06-22 | International Nickel Company Of Canada | Purification of nonferrous mattes |
| US4244735A (en) * | 1979-07-27 | 1981-01-13 | Hazen Research, Inc. | Chloride leach process for recovering metal values in the presence of arsenic |
| CA1150062A (en) * | 1980-06-10 | 1983-07-19 | Robert W. Stanley | Hydrometallurgical treatment of copper-bearing hematite residue |
| US5902474A (en) * | 1993-07-29 | 1999-05-11 | Cominco Engineering Services Ltd. | Chloride assisted hydrometallurgical extraction of metal |
| GB9503877D0 (en) * | 1995-02-27 | 1995-04-19 | Sherritt Inc | Recovery of copper from sulphidic concentrates |
| ZA987219B (en) * | 1997-08-15 | 2000-02-14 | Cominco Eng Services | Chloride assisted hydrometallurgical extraction of metal. |
-
2002
- 2002-04-16 US US10/122,346 patent/US6755891B2/en not_active Expired - Lifetime
-
2003
- 2003-04-04 MX MXPA04010244A patent/MXPA04010244A/es active IP Right Grant
- 2003-04-04 BR BR0309299A patent/BR0309299B1/pt not_active IP Right Cessation
- 2003-04-04 DE DE2003605681 patent/DE60305681T2/de not_active Expired - Lifetime
- 2003-04-04 KR KR20047016591A patent/KR100742870B1/ko active IP Right Grant
- 2003-04-04 CA CA 2481332 patent/CA2481332C/en not_active Expired - Lifetime
- 2003-04-04 CN CNB038122065A patent/CN1280434C/zh not_active Expired - Fee Related
- 2003-04-04 PL PL372567A patent/PL198353B1/pl not_active IP Right Cessation
- 2003-04-04 EA EA200401386A patent/EA007662B1/ru not_active IP Right Cessation
- 2003-04-04 AU AU2003218556A patent/AU2003218556B2/en not_active Ceased
- 2003-04-04 AT AT03711742T patent/ATE328125T1/de not_active IP Right Cessation
- 2003-04-04 ES ES03711742T patent/ES2269991T3/es not_active Expired - Lifetime
- 2003-04-04 JP JP2003586385A patent/JP4360920B2/ja not_active Expired - Fee Related
- 2003-04-04 EP EP03711742A patent/EP1495149B1/en not_active Expired - Lifetime
- 2003-04-04 WO PCT/CA2003/000488 patent/WO2003089677A1/en active IP Right Grant
- 2003-04-14 PE PE2003000377A patent/PE20040023A1/es not_active Application Discontinuation
- 2003-04-16 AR ARP030101345 patent/AR039437A1/es active IP Right Grant
-
2004
- 2004-10-13 ZA ZA200408280A patent/ZA200408280B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AR039437A1 (es) | 2005-02-16 |
| US6755891B2 (en) | 2004-06-29 |
| BR0309299A (pt) | 2005-02-22 |
| KR100742870B1 (ko) | 2007-07-26 |
| EA200401386A1 (ru) | 2005-04-28 |
| JP2005523383A (ja) | 2005-08-04 |
| ES2269991T3 (es) | 2007-04-01 |
| US20030192404A1 (en) | 2003-10-16 |
| PL198353B1 (pl) | 2008-06-30 |
| PE20040023A1 (es) | 2004-02-25 |
| CA2481332C (en) | 2010-03-02 |
| KR20040097364A (ko) | 2004-11-17 |
| WO2003089677A1 (en) | 2003-10-30 |
| JP4360920B2 (ja) | 2009-11-11 |
| EP1495149B1 (en) | 2006-05-31 |
| CN1656238A (zh) | 2005-08-17 |
| DE60305681D1 (de) | 2006-07-06 |
| DE60305681T2 (de) | 2007-05-16 |
| CA2481332A1 (en) | 2003-10-30 |
| EA007662B1 (ru) | 2006-12-29 |
| CN1280434C (zh) | 2006-10-18 |
| AU2003218556B2 (en) | 2008-01-24 |
| EP1495149A1 (en) | 2005-01-12 |
| AU2003218556A1 (en) | 2003-11-03 |
| ATE328125T1 (de) | 2006-06-15 |
| MXPA04010244A (es) | 2005-07-05 |
| PL372567A1 (en) | 2005-07-25 |
| BR0309299B1 (pt) | 2013-12-31 |
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