FI97481B - Förfarande för behandling av jarosithaltiga rester - Google Patents
Förfarande för behandling av jarosithaltiga rester Download PDFInfo
- Publication number
- FI97481B FI97481B FI904911A FI904911A FI97481B FI 97481 B FI97481 B FI 97481B FI 904911 A FI904911 A FI 904911A FI 904911 A FI904911 A FI 904911A FI 97481 B FI97481 B FI 97481B
- Authority
- FI
- Finland
- Prior art keywords
- zinc
- jarosite
- iron
- solution
- sulfuric acid
- Prior art date
Links
- 229910052935 jarosite Inorganic materials 0.000 title claims description 56
- 238000000034 method Methods 0.000 title claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 113
- 239000011701 zinc Substances 0.000 claims description 74
- 229910052725 zinc Inorganic materials 0.000 claims description 65
- 229910052742 iron Inorganic materials 0.000 claims description 53
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 51
- 239000012141 concentrate Substances 0.000 claims description 39
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 34
- 229910052595 hematite Inorganic materials 0.000 claims description 21
- 239000011019 hematite Substances 0.000 claims description 21
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 21
- 238000000605 extraction Methods 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 16
- 238000005868 electrolysis reaction Methods 0.000 claims description 14
- 239000005083 Zinc sulfide Substances 0.000 claims description 12
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 32
- 239000000203 mixture Substances 0.000 description 31
- 229910004298 SiO 2 Inorganic materials 0.000 description 21
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 20
- 239000010949 copper Substances 0.000 description 18
- 238000002386 leaching Methods 0.000 description 17
- 229910052745 lead Inorganic materials 0.000 description 15
- 229910052793 cadmium Inorganic materials 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 4
- 235000011130 ammonium sulphate Nutrition 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 229910052598 goethite Inorganic materials 0.000 description 3
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 239000011686 zinc sulphate Substances 0.000 description 2
- 235000009529 zinc sulphate Nutrition 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003673 groundwater Substances 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
- 239000012535 impurity Substances 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- LWUVWAREOOAHDW-UHFFFAOYSA-N lead silver Chemical group [Ag].[Pb] LWUVWAREOOAHDW-UHFFFAOYSA-N 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- NSUBOZSRZQKZOW-UHFFFAOYSA-J zinc iron(2+) disulfate Chemical compound [Fe+2].[Zn+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O NSUBOZSRZQKZOW-UHFFFAOYSA-J 0.000 description 1
- 239000011787 zinc oxide 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- 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)
- Electrolytic Production Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Fire-Extinguishing Compositions (AREA)
Claims (7)
1. Förfarande för behandling av jarosithaltiga Tester, vid vilket resterna behandlas i ett svavelsyrahaltigt 5 medium vid förhöjd temperatur och förhöjt tryck, k ä n -netecknat därav, att de jarosithaltiga resterna och zinksulfidhaltiga koncentrat blandas i utspädd svavel-syra, som innehäller 40 - 100 g/1 fri svavelsyra, i en autoklav vid ett syredeltryck av minst 1 000 kPa och vid 10 en temperatur av 130 - 170 °C, järn- och zinkinnehället i resten och det zinksulfidhaltiga koncentratet loses till största del, efter sänkning av trycket separeras lösningen och fastämnet frän varandra, lösningen leds tili extrak-tionskretsloppet i en zinkelektrolys, varvid järnet ut-15 fälls i form av hematit, grundämnessvavlet separeras frän fastämnet och resten leds tili en fortsatt användning.
2. Förfarande enligt patentkravet 1, k ä n netecknat därav, att den jarosithaltiga restens blandningsförhällande tili det zinksulfidhaltiga koncent- 20 ratet är 1:10 - 1:1.
3. Förfarande enligt patentkravet 1 eller 2, k ä n-netecknat därav, att den utspädda svavelsyran innehäller 50 - 80 g/1 fri svavelsyra.
4. Förfarande enligt nägot av patentkraven 1-3, . 25 kännetecknat därav, att syredeltrycket i autoklaven är 1 100 - 1 300 kPa.
5. Förfarande enligt nägot av patentkraven 1-4, kännetecknat därav, att behandlingstiden i autoklaven är 30 - 180 minuter. 30
6. Förfarande enligt nägot av patentkraven 1-5, kännetecknat därav, att temperaturen i auto-‘ klaven är 145 - 155 °C.
7. Förfarande enligt nägot av patentkraven 1-6, kännetecknat därav, att lösningen, som erhäl-35 lits efter sänkningen av trycket och separeringen, används i extraktionskretsloppet i zinkelektrolysen efter het, sur ; extraktion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3935362 | 1989-10-24 | ||
| DE3935362A DE3935362A1 (de) | 1989-10-24 | 1989-10-24 | Verfahren zur aufarbeitung von jarosit-haltigen rueckstaenden |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI904911A0 FI904911A0 (sv) | 1990-10-05 |
| FI97481B true FI97481B (sv) | 1996-09-13 |
| FI97481C FI97481C (sv) | 1996-12-27 |
Family
ID=6392077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI904911A FI97481C (sv) | 1989-10-24 | 1990-10-05 | Förfarande för behandling av jarosithaltiga rester |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5453253A (sv) |
| EP (1) | EP0428194B1 (sv) |
| JP (1) | JPH03176081A (sv) |
| AU (1) | AU632180B2 (sv) |
| CA (1) | CA2027973A1 (sv) |
| DE (2) | DE3935362A1 (sv) |
| ES (1) | ES2049405T3 (sv) |
| FI (1) | FI97481C (sv) |
| NO (1) | NO176524C (sv) |
| PE (1) | PE28591A1 (sv) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1007417A3 (fr) * | 1993-08-27 | 1995-06-13 | Union Miniere Sa | Procede de lixiviation de concentre sulfure de zinc et de ferrite de zinc. |
| BR9407223A (pt) * | 1993-08-27 | 1996-09-17 | Union Miniere Sa | Processos para a extração de zinco de concentrados de sulfeto de zinco e para a lixiviação de ferrita de zinco em conjunto com um material sulfetado contendo sulfeto de zinco |
| BE1007906A3 (nl) * | 1993-12-23 | 1995-11-14 | Union Miniere Sa | Werkwijze voor het logen van zwavelhoudend zinkconcentraat en zinkferriet. |
| US5624650A (en) * | 1996-02-22 | 1997-04-29 | Environchip Technologies, Inc. | Nitric acid process for ferric sulfate production |
| FI100806B (sv) * | 1996-08-12 | 1998-02-27 | Outokumpu Base Metals Oy | Förfarande för upplösning av zinkslig under atmosfäriska för hållanden |
| US5814292A (en) * | 1996-12-19 | 1998-09-29 | Energy Research Group | Comprehensive energy producing methods for aqueous phase oxidation |
| FI20002699A0 (sv) * | 2000-12-08 | 2000-12-08 | Outokumpu Oy | Förfarande för hydrolytisk utfällning av järn |
| FI115223B (sv) * | 2001-12-13 | 2005-03-31 | Outokumpu Oy | Förfarande för utfällning av järn i form av hematit från en zinksulfatlösning innehållande järn |
| FI20041132A (sv) * | 2004-08-31 | 2006-03-01 | Outokumpu Oy | Förfarande för behandling av järnfällning |
| CN101842504B (zh) | 2007-05-21 | 2012-11-14 | 奥贝特铝业有限公司 | 从铝土矿石中提取铝和铁的工艺 |
| US9272936B2 (en) | 2009-04-01 | 2016-03-01 | Earth Renewal Group, Llc | Waste treatment process |
| US8115047B2 (en) * | 2009-04-01 | 2012-02-14 | Earth Renewal Group, Llc | Aqueous phase oxidation process |
| US8168847B2 (en) * | 2009-04-01 | 2012-05-01 | Earth Renewal Group, Llc | Aqueous phase oxidation process |
| US8481800B2 (en) * | 2009-04-01 | 2013-07-09 | Earth Renewal Group, Llc | Aqueous phase oxidation process |
| US7951988B2 (en) * | 2009-04-01 | 2011-05-31 | Earth Renewal Group, Llc | Aqueous phase oxidation process |
| US7915474B2 (en) * | 2009-04-01 | 2011-03-29 | Earth Renewal Group, Llc | Aqueous phase oxidation process |
| EP2686458A4 (en) | 2011-03-18 | 2015-04-15 | Orbite Aluminae Inc | METHODS FOR RECOVERING RARE EARTH ELEMENTS FROM ALUMINUM-CONTAINING MATERIALS |
| EP3141621A1 (en) | 2011-05-04 | 2017-03-15 | Orbite Aluminae Inc. | Processes for recovering rare earth elements from various ores |
| CN103842296B (zh) | 2011-06-03 | 2016-08-24 | 奥贝特科技有限公司 | 用于制备赤铁矿的方法 |
| JP2014526431A (ja) | 2011-09-16 | 2014-10-06 | オーバイト アルミナ インコーポレイテッド | アルミナ及び様々な他の生成物の調製プロセス |
| EP2802675B1 (en) | 2012-01-10 | 2020-03-11 | Orbite Aluminae Inc. | Processes for treating red mud |
| JP5424139B2 (ja) | 2012-03-19 | 2014-02-26 | 住友金属鉱山株式会社 | 製鉄用ヘマタイトの製造方法 |
| JP5704410B2 (ja) | 2012-03-21 | 2015-04-22 | 住友金属鉱山株式会社 | 製鉄用ヘマタイトの製造方法 |
| CA2903512C (en) | 2012-03-29 | 2017-12-05 | Orbite Technologies Inc. | Processes for treating fly ashes |
| US9290828B2 (en) | 2012-07-12 | 2016-03-22 | Orbite Technologies Inc. | Processes for preparing titanium oxide and various other products |
| WO2014047728A1 (en) | 2012-09-26 | 2014-04-03 | Orbite Aluminae Inc. | Processes for preparing alumina and magnesium chloride by hc1 leaching of various materials |
| EP2920114A4 (en) | 2012-11-14 | 2016-03-02 | Orbite Aluminae Inc | PROCESS FOR PURIFYING ALUMINUM IONS |
| JP5622061B2 (ja) | 2013-03-26 | 2014-11-12 | 住友金属鉱山株式会社 | 製鉄用ヘマタイトの製造方法 |
| JP5440823B1 (ja) | 2013-09-18 | 2014-03-12 | 住友金属鉱山株式会社 | 製鉄用ヘマタイトの製造方法 |
| JP5800255B2 (ja) | 2014-02-27 | 2015-10-28 | 住友金属鉱山株式会社 | 製鉄用ヘマタイトの製造方法 |
| KR101707590B1 (ko) * | 2014-12-18 | 2017-02-16 | 김민석 | 9자형 벤딩기를 구비한 와이어 스트리퍼 |
| AU2020264822A1 (en) * | 2019-05-01 | 2021-12-02 | Vinod Chintamani Malshe | Effective utilization of Jarosite waste |
| CN113136488B (zh) * | 2021-04-22 | 2022-10-18 | 中化化工科学技术研究总院有限公司 | 一种湿法炼锌中铁矾渣的湿法处理工艺 |
| CN114835088B (zh) * | 2022-03-21 | 2023-07-18 | 中南大学 | 一种黄铁矿热解-氧压浸出制备硫磺和铁精粉的方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1492518A (fr) * | 1965-09-11 | 1967-08-18 | Sherritt Gordon Mines Ltd | Procédé hydrométallurgique pour récupérer le zine et le soufre contenus dans des sulfures minéraux |
| US4063933A (en) * | 1976-07-02 | 1977-12-20 | Texasgulf Canada Ltd. | Process for the treatment of complex lead-zinc concentrates |
| US4305914A (en) * | 1977-05-09 | 1981-12-15 | Electrolytic Zinc Company | Process for precipitating iron as jarosite with a low non-ferrous metal content |
| FI65810C (fi) * | 1980-09-30 | 1984-07-10 | Outokumpu Oy | Foerfarande foer behandling av raomaterial innehaollande oxid och ferrit av zink koppar och kadmium |
| CA1166022A (en) * | 1981-05-22 | 1984-04-24 | Donald R. Weir | Recovery of zinc from zinc containing sulphidic material |
| CA1176853A (en) * | 1981-08-05 | 1984-10-30 | Gerald L. Bolton | Process for recovering zinc from zinc ferrite material |
| CA1206008A (en) * | 1982-02-24 | 1986-06-17 | Donald R. Weir | Recovery of zinc from zinc-containing sulphidic material |
| GB2114966B (en) * | 1982-02-24 | 1985-08-29 | Sherritt Gordon Mines Ltd | Recovery of zinc from sulphidic material |
| CA1195846A (en) * | 1982-06-03 | 1985-10-29 | Donald R. Weir | Recovery of zinc from zinc-containing sulphidic material |
| CA1212242A (en) * | 1982-07-27 | 1986-10-07 | Donald R. Weir | Recovery of zinc from zinc-containing sulphidic material |
| US4610721A (en) * | 1985-01-31 | 1986-09-09 | Amax Inc. | Two-stage leaching process for steel plant dusts |
| US4778520A (en) * | 1987-03-26 | 1988-10-18 | University Of Waterloo | Process for leaching zinc from partially desulfurized zinc concentrates by sulfuric acid |
-
1989
- 1989-10-24 DE DE3935362A patent/DE3935362A1/de not_active Withdrawn
-
1990
- 1990-10-02 EP EP90202618A patent/EP0428194B1/de not_active Expired - Lifetime
- 1990-10-02 DE DE90202618T patent/DE59004326D1/de not_active Expired - Lifetime
- 1990-10-02 ES ES90202618T patent/ES2049405T3/es not_active Expired - Lifetime
- 1990-10-03 NO NO904301A patent/NO176524C/no unknown
- 1990-10-04 PE PE1990175752A patent/PE28591A1/es unknown
- 1990-10-05 FI FI904911A patent/FI97481C/sv not_active IP Right Cessation
- 1990-10-18 CA CA002027973A patent/CA2027973A1/en not_active Abandoned
- 1990-10-19 JP JP2281703A patent/JPH03176081A/ja active Pending
- 1990-10-23 AU AU64848/90A patent/AU632180B2/en not_active Ceased
- 1990-10-23 US US07/602,017 patent/US5453253A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2049405T3 (es) | 1994-04-16 |
| JPH03176081A (ja) | 1991-07-31 |
| AU6484890A (en) | 1991-05-02 |
| NO904301L (no) | 1991-04-25 |
| EP0428194A1 (de) | 1991-05-22 |
| FI97481C (sv) | 1996-12-27 |
| DE3935362A1 (de) | 1991-04-25 |
| EP0428194B1 (de) | 1994-01-19 |
| PE28591A1 (es) | 1991-11-04 |
| AU632180B2 (en) | 1992-12-17 |
| NO176524C (no) | 1995-04-19 |
| CA2027973A1 (en) | 1991-04-25 |
| DE59004326D1 (de) | 1994-03-03 |
| FI904911A0 (sv) | 1990-10-05 |
| US5453253A (en) | 1995-09-26 |
| NO176524B (no) | 1995-01-09 |
| NO904301D0 (no) | 1990-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI97481B (sv) | Förfarande för behandling av jarosithaltiga rester | |
| FI66913B (fi) | Tvaostegstryckurlakningsfoerfarande foer zink- och jaernhaltiga sulfidmineralier | |
| AU2008284944A1 (en) | Method for treatment of arsenic-containing nonferrous smelting intermediate product | |
| TW200819398A (en) | Process for recycling waste acid | |
| CN108138258B (zh) | 从含砷材料中除砷的方法 | |
| US5126116A (en) | Method for forming copper arsenate | |
| EP3894605A1 (en) | Lithium recovery and purification | |
| AU2014320230A1 (en) | A method for the treatment of metals | |
| CN114684801B (zh) | 一种利用硫铁矿烧渣制备高纯磷酸铁的方法 | |
| PL90887B1 (sv) | ||
| FI83434B (fi) | Foerfarande foer behandling av aoterstoder fraon hydrometallurgisk zinkutvinning. | |
| CN108862370A (zh) | 一种利用含锌原矿在锌氨络合环境下生产纳米氧化锌的方法 | |
| US20030010156A1 (en) | Method for upgrading steel plant dust | |
| FI93660C (sv) | Sätt att lösa upp material som innehåller zinkoxid och -silikat | |
| FI104739B (sv) | Förfarande för tillvaratagande av icke-järnmetaller genom smält- och smältfilmsulfatisering | |
| CN108622927A (zh) | 一种利用含锌原矿生产纳米氧化锌的方法 | |
| CN108588413A (zh) | 一种利用含锌原矿生产纳米氧化锌的方法 | |
| WO2002090605A1 (en) | Acid digestion process for treating alumina-bearing ores to recover metal values therefrom | |
| CN113136488A (zh) | 一种湿法炼锌中铁矾渣的湿法处理工艺 | |
| AU2014209913B2 (en) | Process for the recovery of iron as hematite and other metallic values from a sulphate leach solution | |
| BRPI0106186B1 (pt) | processos de integração dos tratamentos de concentrados ou minérios de silicatos de zinco e ustulados de zinco sulfetado, cuja integração ocorre na etapa de lixiviação neutra, e/ou na etapa de lixiviação ácida e/ou na etapa de precipitação de ferro/papagoetita | |
| SU155609A1 (sv) | ||
| PL143810B2 (en) | Method of purification of nickel sulfate | |
| AU2017371637A1 (en) | Releasing impurities from a calcium-based mineral | |
| RO114640B1 (ro) | Procedeu de separare a cromului, de fier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: RUHR-ZINK GMBH |