ZA200304050B - Method for the hydrolytic precipitation of iron. - Google Patents
Method for the hydrolytic precipitation of iron. Download PDFInfo
- Publication number
- ZA200304050B ZA200304050B ZA200304050A ZA200304050A ZA200304050B ZA 200304050 B ZA200304050 B ZA 200304050B ZA 200304050 A ZA200304050 A ZA 200304050A ZA 200304050 A ZA200304050 A ZA 200304050A ZA 200304050 B ZA200304050 B ZA 200304050B
- Authority
- ZA
- South Africa
- Prior art keywords
- iron
- zinc
- solution
- stage
- ferrous
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 142
- 229910052742 iron Inorganic materials 0.000 title claims description 69
- 238000000034 method Methods 0.000 title claims description 43
- 238000001556 precipitation Methods 0.000 title claims description 38
- 230000003301 hydrolyzing effect Effects 0.000 title claims description 5
- 239000011701 zinc Substances 0.000 claims description 40
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 39
- 229910052725 zinc Inorganic materials 0.000 claims description 39
- 229910052935 jarosite Inorganic materials 0.000 claims description 23
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical group [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 20
- 230000007935 neutral effect Effects 0.000 claims description 19
- 229910000859 α-Fe Inorganic materials 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 17
- 239000002244 precipitate Substances 0.000 claims description 17
- 238000002386 leaching Methods 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000006386 neutralization reaction Methods 0.000 claims description 14
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 11
- 239000012141 concentrate Substances 0.000 claims description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 8
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 8
- 235000009529 zinc sulphate Nutrition 0.000 claims description 8
- 239000011686 zinc sulphate Substances 0.000 claims description 8
- 238000005868 electrolysis reaction Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 6
- -1 ferrous metals Chemical class 0.000 claims description 5
- 229910052733 gallium Inorganic materials 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 235000010269 sulphur dioxide Nutrition 0.000 claims description 3
- 239000004291 sulphur dioxide Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- 239000000243 solution Substances 0.000 description 58
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 12
- 238000006722 reduction reaction Methods 0.000 description 12
- 150000002739 metals Chemical class 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 7
- 239000001117 sulphuric acid Substances 0.000 description 7
- 235000011149 sulphuric acid Nutrition 0.000 description 7
- 230000003472 neutralizing effect Effects 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- 229910052595 hematite Inorganic materials 0.000 description 4
- 239000011019 hematite Substances 0.000 description 4
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000011133 lead Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910052598 goethite Inorganic materials 0.000 description 2
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910002588 FeOOH Inorganic materials 0.000 description 1
- JSKQRADCWGNYQD-UHFFFAOYSA-N N.O.[Na] Chemical compound N.O.[Na] JSKQRADCWGNYQD-UHFFFAOYSA-N 0.000 description 1
- 101100227142 Schizosaccharomyces pombe (strain 972 / ATCC 24843) fio1 gene Proteins 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 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
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/26—Refining solutions containing zinc values, e.g. obtained by leaching zinc 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
- 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
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Manufacture Of Iron (AREA)
- Chemical Treatment Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Basic Packing Technique (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20002699A FI20002699A0 (sv) | 2000-12-08 | 2000-12-08 | Förfarande för hydrolytisk utfällning av järn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200304050B true ZA200304050B (en) | 2004-02-19 |
Family
ID=8559678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200304050A ZA200304050B (en) | 2000-12-08 | 2003-05-26 | Method for the hydrolytic precipitation of iron. |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US7118719B2 (sv) |
| EP (1) | EP1339883B1 (sv) |
| JP (1) | JP4094949B2 (sv) |
| KR (1) | KR100845169B1 (sv) |
| CN (1) | CN1249257C (sv) |
| AT (1) | ATE336595T1 (sv) |
| AU (2) | AU1717102A (sv) |
| BR (1) | BR0116028B1 (sv) |
| CA (1) | CA2429889C (sv) |
| DE (1) | DE60122370D1 (sv) |
| EA (1) | EA005237B1 (sv) |
| ES (1) | ES2269520T3 (sv) |
| FI (1) | FI20002699A0 (sv) |
| MX (1) | MXPA03005114A (sv) |
| NO (1) | NO333462B1 (sv) |
| PE (1) | PE20020807A1 (sv) |
| WO (1) | WO2002046481A1 (sv) |
| ZA (1) | ZA200304050B (sv) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI116071B (sv) * | 2003-02-26 | 2005-09-15 | Outokumpu Oy | Förfarande för tillvaratagande av zink med motströmsupplösning |
| FI20030612A (sv) * | 2003-04-23 | 2004-10-24 | Outokumpu Oy | Förfarande för behandling av avfallsmaterial som uppstår i en metallurgisk process |
| FI118226B (sv) * | 2005-12-29 | 2007-08-31 | Outokumpu Technology Oyj | Förfarande för tillvaratagning av sällsynta metaller i en upplösningsprocess för zink |
| WO2007079532A1 (en) * | 2006-01-10 | 2007-07-19 | Murrin Murrin Operations Pty Ltd | Hematite precipitation |
| JP4961603B2 (ja) * | 2006-07-14 | 2012-06-27 | Ｄｏｗａメタルマイン株式会社 | ガリウム含有溶液の処理方法 |
| WO2008128278A2 (en) * | 2007-04-19 | 2008-10-30 | Metallica Minerals Ltd | Treatment of nickel-containing solutions |
| WO2008141423A1 (en) | 2007-05-21 | 2008-11-27 | Exploration Orbite Vspa Inc. | Processes for extracting aluminum and iron from aluminous ores |
| FI122676B (sv) * | 2010-10-12 | 2012-05-15 | Outotec Oyj | Förfarande för behandling av en zinksulfathaltig lösning |
| CN103534367A (zh) | 2011-03-18 | 2014-01-22 | 奥贝特铝业有限公司 | 从含铝材料中回收稀土元素的方法 |
| CA2813860A1 (en) * | 2011-04-15 | 2012-10-18 | Tam 5, S.L. | Hydrometallurgical method for recovery of zinc in sulphuric medium starting from sulphidic zinc concentrates |
| WO2012149642A1 (en) | 2011-05-04 | 2012-11-08 | Orbite Aluminae Inc. | Processes for recovering rare earth elements from various ores |
| RU2013157943A (ru) | 2011-06-03 | 2015-07-20 | Орбит Элюминэ Инк. | Способ получения гематита |
| US9382600B2 (en) | 2011-09-16 | 2016-07-05 | Orbite Technologies Inc. | Processes for preparing alumina and various other products |
| EP2802675B1 (en) | 2012-01-10 | 2020-03-11 | Orbite Aluminae Inc. | Processes for treating red mud |
| CN104520237B (zh) | 2012-03-29 | 2018-05-01 | 奥佰特氧化铝有限公司 | 处理飞灰的方法 |
| US9290828B2 (en) | 2012-07-12 | 2016-03-22 | Orbite Technologies Inc. | Processes for preparing titanium oxide and various other products |
| MX349844B (es) | 2012-07-16 | 2017-08-16 | Tam 5 S L * | Metodo hidrometalurgico para la recuperacion de zinc en medio sulfurico a partir de concentrados de zinc sulfurados con alto contenido en hierro. |
| CN102766765B (zh) * | 2012-08-07 | 2014-12-24 | 四川四环电锌有限公司 | 氧化锌粉回收利用方法 |
| CA2885255C (en) | 2012-09-26 | 2015-12-22 | Orbite Aluminae Inc. | Processes for preparing alumina and magnesium chloride by hc1 leaching of various materials |
| CN102899502A (zh) * | 2012-10-08 | 2013-01-30 | 来宾华锡冶炼有限公司 | 一种从高锡高铟锌浸出渣中提取锌铟及回收锡的方法 |
| CN102899491B (zh) * | 2012-10-12 | 2013-12-04 | 中南大学 | 一种浮选分离硫酸锌浸出液中高浓度铁离子的方法 |
| JP2016504251A (ja) | 2012-11-14 | 2016-02-12 | オーバイト アルミナ インコーポレイテッドＯｒｂｉｔｅ Ａｌｕｍｉｎａｅ Ｉｎｃ． | アルミニウムイオンの精製方法 |
| CN103130282B (zh) * | 2013-03-20 | 2014-07-09 | 江苏理工学院 | 黄钾铁矾的制备方法 |
| CN103290214A (zh) * | 2013-05-28 | 2013-09-11 | 中国恩菲工程技术有限公司 | 从含铁硫酸锌溶液中沉铁的方法 |
| CN103695657A (zh) * | 2013-12-24 | 2014-04-02 | 广西博士海意信息科技有限公司 | 一种从湿法炼锌废渣中富集回收镓锗的方法 |
| EP2902510A1 (en) * | 2014-01-29 | 2015-08-05 | Canbekte, Hüsnü Sinan | A new method for leaching of electric arc furnace dust (EAFD) with sulphuric acid |
| CN109970105B (zh) * | 2019-04-24 | 2021-04-16 | 西南科技大学 | 一种湿法炼锌工艺中清洁回收铁的方法 |
| CN110079676B (zh) * | 2019-05-05 | 2020-10-09 | 昆明理工大学 | 一种富含锗的氧化锌烟尘梯级浸出工艺 |
| CN110764545B (zh) * | 2019-10-24 | 2020-11-27 | 中南大学 | 一种湿法炼锌中性浸出过程中pH值的控制方法 |
| CN112795795B (zh) * | 2020-12-15 | 2023-10-03 | 深圳市中金岭南有色金属股份有限公司丹霞冶炼厂 | 一种在硫酸浸出液中加压氧化分离镓锗的方法 |
| CN113088710A (zh) * | 2021-03-29 | 2021-07-09 | 云南驰宏资源综合利用有限公司 | 一种铜锗置换渣中铜锗分离的方法 |
| CN114634257A (zh) * | 2022-03-04 | 2022-06-17 | 太原碧蓝水利工程设计股份有限公司 | 一种处理酸性矿坑水的方法及由酸性矿坑水合成的羟基硫酸铁钾 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE673023A (sv) | 1965-04-30 | 1900-01-01 | ||
| IE32587B1 (en) * | 1968-11-20 | 1973-09-19 | Mines Fond Zinc Vieille | Improvements in or relating to valorization |
| ES407811A2 (es) * | 1972-10-20 | 1976-02-01 | Asturiana De Zinc Sa | Un procedimiento de recuperacion de zinc de las ferritas existentes en residuos. |
| US4042474A (en) | 1973-08-02 | 1977-08-16 | Pako Corporation | Separating nickel, cobalt and chromium from iron in metallurgical products |
| US4305914A (en) * | 1977-05-09 | 1981-12-15 | Electrolytic Zinc Company | Process for precipitating iron as jarosite with a low non-ferrous metal content |
| US4128617A (en) * | 1977-07-11 | 1978-12-05 | Newmont Exploration Limited | Treatment of zinc calcines for zinc recovery |
| CA1094326A (en) * | 1977-08-19 | 1981-01-27 | Verner B. Sefton | Process for the precipitation of iron as jarosite |
| DE3935362A1 (de) * | 1989-10-24 | 1991-04-25 | Ruhr Zink Gmbh | Verfahren zur aufarbeitung von jarosit-haltigen rueckstaenden |
| CA2104736A1 (en) * | 1993-08-24 | 1995-02-25 | Lucy Rosato | Process for high extraction of zinc from zinc ferrites |
| FI98073C (sv) * | 1995-08-14 | 1997-04-10 | Outokumpu Eng Oy | Förfarande för hydrometallurgisk återvinning av nickel ur två olika typer av nickelsten |
| FI100806B (sv) * | 1996-08-12 | 1998-02-27 | Outokumpu Base Metals Oy | Förfarande för upplösning av zinkslig under atmosfäriska för hållanden |
-
2000
- 2000-12-08 FI FI20002699A patent/FI20002699A0/sv not_active IP Right Cessation
-
2001
- 2001-11-28 PE PE2001001194A patent/PE20020807A1/es active IP Right Grant
- 2001-12-07 US US10/450,921 patent/US7118719B2/en not_active Expired - Lifetime
- 2001-12-07 CA CA2429889A patent/CA2429889C/en not_active Expired - Lifetime
- 2001-12-07 AT AT01999677T patent/ATE336595T1/de not_active IP Right Cessation
- 2001-12-07 CN CNB018201938A patent/CN1249257C/zh not_active Expired - Lifetime
- 2001-12-07 EA EA200300648A patent/EA005237B1/ru not_active IP Right Cessation
- 2001-12-07 AU AU1717102A patent/AU1717102A/xx active Pending
- 2001-12-07 AU AU2002217171A patent/AU2002217171B2/en not_active Expired
- 2001-12-07 DE DE60122370T patent/DE60122370D1/de not_active Expired - Lifetime
- 2001-12-07 MX MXPA03005114A patent/MXPA03005114A/es active IP Right Grant
- 2001-12-07 WO PCT/FI2001/001065 patent/WO2002046481A1/en active IP Right Grant
- 2001-12-07 JP JP2002548197A patent/JP4094949B2/ja not_active Expired - Lifetime
- 2001-12-07 EP EP01999677A patent/EP1339883B1/en not_active Expired - Lifetime
- 2001-12-07 ES ES01999677T patent/ES2269520T3/es not_active Expired - Lifetime
- 2001-12-07 KR KR1020037007661A patent/KR100845169B1/ko active IP Right Grant
- 2001-12-07 BR BRPI0116028-1A patent/BR0116028B1/pt not_active IP Right Cessation
-
2003
- 2003-05-26 ZA ZA200304050A patent/ZA200304050B/en unknown
- 2003-06-03 NO NO20032509A patent/NO333462B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030059326A (ko) | 2003-07-07 |
| BR0116028B1 (pt) | 2010-09-08 |
| EA005237B1 (ru) | 2004-12-30 |
| NO333462B1 (no) | 2013-06-17 |
| NO20032509D0 (no) | 2003-06-03 |
| NO20032509L (no) | 2003-06-03 |
| US20040067183A1 (en) | 2004-04-08 |
| EP1339883B1 (en) | 2006-08-16 |
| EP1339883A1 (en) | 2003-09-03 |
| DE60122370D1 (de) | 2006-09-28 |
| AU1717102A (en) | 2002-06-18 |
| WO2002046481A1 (en) | 2002-06-13 |
| BR0116028A (pt) | 2003-10-07 |
| CA2429889C (en) | 2011-02-08 |
| FI20002699A0 (sv) | 2000-12-08 |
| AU2002217171B2 (en) | 2006-03-16 |
| CA2429889A1 (en) | 2002-06-13 |
| ES2269520T3 (es) | 2007-04-01 |
| US7118719B2 (en) | 2006-10-10 |
| CN1479793A (zh) | 2004-03-03 |
| JP4094949B2 (ja) | 2008-06-04 |
| MXPA03005114A (es) | 2003-09-05 |
| CN1249257C (zh) | 2006-04-05 |
| PE20020807A1 (es) | 2002-10-02 |
| JP2004515439A (ja) | 2004-05-27 |
| ATE336595T1 (de) | 2006-09-15 |
| KR100845169B1 (ko) | 2008-07-09 |
| EA200300648A1 (ru) | 2003-12-25 |
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