DE2540641C2 - Verfahren zum Laugen von zinkferrithaltigen Rückständen - Google Patents
Verfahren zum Laugen von zinkferrithaltigen RückständenInfo
- Publication number
- DE2540641C2 DE2540641C2 DE2540641A DE2540641A DE2540641C2 DE 2540641 C2 DE2540641 C2 DE 2540641C2 DE 2540641 A DE2540641 A DE 2540641A DE 2540641 A DE2540641 A DE 2540641A DE 2540641 C2 DE2540641 C2 DE 2540641C2
- Authority
- DE
- Germany
- Prior art keywords
- solution
- zinc
- residue
- leaching
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002386 leaching Methods 0.000 title claims description 52
- 238000000034 method Methods 0.000 title claims description 34
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 title claims description 10
- 229910001308 Zinc ferrite Inorganic materials 0.000 title claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 66
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 64
- 239000011701 zinc Substances 0.000 claims description 43
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 42
- 229910052725 zinc Inorganic materials 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 35
- 239000002253 acid Substances 0.000 claims description 27
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 23
- 239000005083 Zinc sulfide Substances 0.000 claims description 22
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 20
- 239000002002 slurry Substances 0.000 claims description 18
- 238000001556 precipitation Methods 0.000 claims description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 15
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 15
- 238000005188 flotation Methods 0.000 claims description 13
- 235000019738 Limestone Nutrition 0.000 claims description 12
- 239000006028 limestone Substances 0.000 claims description 12
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 12
- 229960001763 zinc sulfate Drugs 0.000 claims description 12
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical class [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- 239000011686 zinc sulphate Substances 0.000 claims description 3
- 235000009529 zinc sulphate Nutrition 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000008247 solid mixture Substances 0.000 claims 3
- FSTLXSLAOHUSOO-UHFFFAOYSA-L S(=O)(=O)([O-])[O-].[Zn].[Fe+2] Chemical class S(=O)(=O)([O-])[O-].[Zn].[Fe+2] FSTLXSLAOHUSOO-UHFFFAOYSA-L 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 239000007790 solid phase Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 60
- 239000012141 concentrate Substances 0.000 description 28
- 239000002562 thickening agent Substances 0.000 description 22
- 238000006386 neutralization reaction Methods 0.000 description 15
- 239000011133 lead Substances 0.000 description 14
- 230000003647 oxidation Effects 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 10
- 229910052595 hematite Inorganic materials 0.000 description 9
- 239000011019 hematite Substances 0.000 description 9
- 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 9
- 235000011149 sulphuric acid Nutrition 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 229910052732 germanium Inorganic materials 0.000 description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 5
- 230000003472 neutralizing effect Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 229910052787 antimony Inorganic materials 0.000 description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 229910052935 jarosite Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 229910052733 gallium Inorganic materials 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
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910000358 iron sulfate Inorganic materials 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- LWUVWAREOOAHDW-UHFFFAOYSA-N lead silver Chemical group [Ag].[Pb] LWUVWAREOOAHDW-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- -1 FeS Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000000126 substance 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)
- Manufacture Of Iron (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB40112/74A GB1509537A (en) | 1974-09-13 | 1974-09-13 | Treatment of zinc plant residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2540641A1 DE2540641A1 (de) | 1976-04-01 |
| DE2540641C2 true DE2540641C2 (de) | 1985-11-21 |
Family
ID=10413255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2540641A Expired DE2540641C2 (de) | 1974-09-13 | 1975-09-12 | Verfahren zum Laugen von zinkferrithaltigen Rückständen |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3976743A (enExample) |
| JP (1) | JPS5621813B2 (enExample) |
| BE (1) | BE832924A (enExample) |
| CA (1) | CA1035580A (enExample) |
| DE (1) | DE2540641C2 (enExample) |
| ES (1) | ES440895A1 (enExample) |
| FR (1) | FR2284682A1 (enExample) |
| GB (1) | GB1509537A (enExample) |
| NL (1) | NL180022C (enExample) |
| NO (1) | NO142995C (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306506A1 (de) * | 1982-02-24 | 1983-09-08 | Sherritt Gordon Mines Ltd., Toronto, Ontario | Verfahren zur zinkgewinnung aus zinkhaltigem sulfidischen material |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2624658C3 (de) * | 1976-06-02 | 1980-04-17 | Ruhr - Zink Gmbh, 4354 Datteln | Verfahren zur Aufarbeitung von bei der Laugung gerösteter Zinkblende verbleibender Rückstände |
| JPS5321006A (en) * | 1976-08-11 | 1978-02-27 | Dowa Mining Co | Process for separation and recovery of gallium germanium indium and iron from zinc leaching residue |
| FI773588A7 (fi) * | 1977-11-28 | 1979-05-29 | Outokumpu Oy | Hydrometallurgisk process foer behandling av oxider och ferriter innehaollande jaern och andra metaller |
| FI65804C (fi) * | 1980-09-30 | 1984-07-10 | Outokumpu Oy | Hydrometallurgiskt foerfarande foer aotervinning av bly silveroch guld samt zink ur orena jarositaoterstoden fraon en e letrolytisk zinkprocess |
| US4437953A (en) * | 1981-06-02 | 1984-03-20 | Electrolytic Zinc Company Of Australasia Limited | Process for solution control in an electrolytic zinc plant circuit |
| CA1176853A (en) * | 1981-08-05 | 1984-10-30 | Gerald L. Bolton | Process for recovering zinc from zinc ferrite material |
| DE3634359A1 (de) * | 1986-10-09 | 1988-04-21 | Ruhr Zink Gmbh | Verfahren zur aufarbeitung von rueckstaenden aus der hydrometallurgischen zink-gewinnung |
| GB8928368D0 (en) * | 1989-12-15 | 1990-02-21 | Sherritt Gordon Ltd | Recovery of metal values from zinc plant residues |
| FI88516C (fi) * | 1990-02-16 | 1993-05-25 | Outokumpu Oy | Hydrometallurgiskt foerfarande foer behandling av zinksulfidhaltiga raoaemnen |
| US5128047A (en) * | 1990-04-20 | 1992-07-07 | Rhone-Poulenc Inc. | Sequential separation of metals by controlled pH precipitation |
| BE1007417A3 (fr) * | 1993-08-27 | 1995-06-13 | Union Miniere Sa | Procede de lixiviation de concentre sulfure de zinc et de ferrite de zinc. |
| EP0719347B1 (fr) * | 1993-08-27 | 1997-04-23 | n.v. UNION MINIERE s.a. | Procede d'extraction de zinc de concentres sulfures |
| BE1007906A3 (nl) * | 1993-12-23 | 1995-11-14 | Union Miniere Sa | Werkwijze voor het logen van zwavelhoudend zinkconcentraat en zinkferriet. |
| RU2153013C1 (ru) * | 1999-10-11 | 2000-07-20 | Акционерное общество открытого типа "Челябинский электролитный цинковый завод" | Способ переработки цинковых кеков |
| RU2175354C2 (ru) * | 1999-10-18 | 2001-10-27 | Акционерное общество открытого типа "Челябинский электролитный цинковый завод" | Способ переработки цинковых кеков |
| ES2159263B1 (es) * | 1999-12-17 | 2002-04-16 | Tecn Reunidas S A | Proceso para la produccion electrolitica de zinc o de compuestos de zinc de alta pureza a partir de materias primas primarias y secundarias de zinc. |
| AU6722001A (en) * | 2000-07-14 | 2002-01-30 | Noranda Inc | Production of zinc oxide from acid soluble ore using precipitation method |
| JP4129499B2 (ja) * | 2000-08-08 | 2008-08-06 | Ｄｏｗａメタルマイン株式会社 | 鉱物からの硫黄の回収方法 |
| FI115223B (fi) * | 2001-12-13 | 2005-03-31 | Outokumpu Oy | Menetelmä raudan saostamiseksi sinkkisulfaattiliuoksesta hematiittina |
| JP4112401B2 (ja) * | 2003-02-27 | 2008-07-02 | 日鉱金属株式会社 | 常圧法による浸出残渣からのイオウの回収方法 |
| FI118226B (fi) * | 2005-12-29 | 2007-08-31 | Outokumpu Technology Oyj | Menetelmä harvinaisten metallien talteenottamiseksi sinkin liuotusprosessissa |
| 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 |
| BRPI0701919B1 (pt) * | 2007-05-23 | 2016-10-11 | Votorantim Metais Zinco S A | processo de produção de índio metálico puro a partir de óxido de zinco e/ou solução contendo o metal |
| US7635534B2 (en) * | 2007-08-24 | 2009-12-22 | Basf Catalysts Llc | Simplified process for leaching precious metals from fuel cell membrane electrode assemblies |
| US8900535B2 (en) | 2010-01-07 | 2014-12-02 | Barrick Gold Corporation | Production of zinc sulphate concentrates from a dilute zinc sulphate solution |
| CN103667698A (zh) * | 2013-12-17 | 2014-03-26 | 郴州丰越环保科技股份有限公司 | 湿法含铟次氧化锌或锌精矿提炼铟中还原三价铁方法 |
| FI127003B (en) * | 2013-12-19 | 2017-09-15 | Outotec Finland Oy | Process and process arrangements for separating indium and arsenic from each other |
| CN103866120B (zh) * | 2014-03-25 | 2016-03-16 | 长沙有色冶金设计研究院有限公司 | 硫化锌精矿加压氧浸出锌同时回收有价金属的方法 |
| CN104014420B (zh) * | 2014-06-10 | 2016-03-02 | 李锦源 | 一种低品位氧硫混合铅锌矿多金属回收的方法 |
| CA2854778A1 (en) * | 2014-06-18 | 2015-12-18 | Guy Mercier | Recovery of zinc and manganese from pyrometalurgy sludge or residues |
| CN104120287B (zh) * | 2014-06-30 | 2015-06-24 | 蒙自矿冶有限责任公司 | 从低浓度含铟溶液中富集回收铟及伴生铜的工艺 |
| CN104141046B (zh) * | 2014-07-24 | 2016-10-05 | 安阳市岷山有色金属有限责任公司 | 一种对含铟氧化锌烟灰进行铟锌回收的方法 |
| CN105132607B (zh) * | 2015-08-14 | 2017-07-25 | 陕西理工学院 | 一种从铅锌冶炼废渣中回收铁的工艺 |
| CN106868304A (zh) * | 2016-12-27 | 2017-06-20 | 河南豫光锌业有限公司 | 一种降低湿法炼锌氧化铁渣中杂质含量的方法 |
| CN108179289A (zh) * | 2017-11-28 | 2018-06-19 | 四环锌锗科技股份有限公司 | 一种从氧化锌烟尘中回收锗的方法 |
| KR101889680B1 (ko) * | 2018-02-01 | 2018-08-17 | 고려아연 주식회사 | 황산아연 용액으로부터 철을 회수하는 방법 |
| CN109797292A (zh) * | 2018-12-28 | 2019-05-24 | 东营方圆有色金属有限公司 | 一种铜冶炼烟尘湿法处理中和降酸工序提高氧化锌浸出率的工艺 |
| CN109852803B (zh) * | 2019-01-15 | 2021-04-02 | 昆明理工大学 | 一种回收铁矾渣中有价金属及铁的方法 |
| CN109897966B (zh) * | 2019-03-29 | 2020-09-01 | 何耀 | 一种次氧化锌原料高效资源化利用方法 |
| CN112176199B (zh) * | 2020-09-27 | 2022-08-02 | 衡阳市大宇锌业有限公司 | 一种从炼锌废渣中高效提纯氧化锌的工艺 |
| CN112646983A (zh) * | 2020-10-29 | 2021-04-13 | 深圳市中金岭南有色金属股份有限公司丹霞冶炼厂 | 一种锌粉置换镓锗渣直接浸出的方法 |
| CN113061734A (zh) * | 2021-03-29 | 2021-07-02 | 攀钢集团攀枝花钢铁研究院有限公司 | 回收高炉布袋灰中锌、铟、铅的方法 |
| CN113430399A (zh) * | 2021-06-29 | 2021-09-24 | 红河学院 | 一种加压氧浸锗煤矿回收锗及浸出渣浮选联产优质煤的方法 |
| CN114438318B (zh) * | 2021-12-30 | 2023-12-08 | 云锡文山锌铟冶炼有限公司 | 湿法炼锌开车的方法 |
| CN115386732A (zh) * | 2022-09-06 | 2022-11-25 | 昆明冶金研究院有限公司 | 一种高效回收利用氧化锌烟尘中锌锗铟的方法 |
| CN116875826B (zh) * | 2023-09-07 | 2023-11-14 | 昆明理工大学 | 一种氧化锌烟尘深度、短流程提锗的方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE266349C (enExample) * | ||||
| US2898197A (en) * | 1958-11-05 | 1959-08-04 | Sherritt Gordon Mines Ltd | Method of treating pyrrhotitic mineral sulphides containing non-ferrous metal values |
| US3113860A (en) * | 1960-02-15 | 1963-12-10 | American Zinc Lead & Smelting | Recovery of metal values |
| DE1161433B (de) * | 1962-01-11 | 1964-01-16 | Sherritt Gordon Mines Ltd | Verfahren zur Wiedergewinnung von Zink aus Rueckstaenden eines Zinkbetriebes |
| US3193382A (en) * | 1962-01-11 | 1965-07-06 | Sherritt Gordon Mines Ltd | Process for the recovery of zinc from zinc plant residues |
| US3375066A (en) * | 1963-08-24 | 1968-03-26 | Yawata Chem Ind Co Ltd | Process for the continuous production of gypsum and iron oxide from waste sulfuric acid pickle liquor and a calcium compound |
| US3434798A (en) * | 1964-10-02 | 1969-03-25 | Asturienne Mines Comp Royale | Process for recovering zinc from ferrites |
| US3493365A (en) * | 1965-03-31 | 1970-02-03 | Electrolyt Zinc Australasia | Treatment of zinc plant residue |
| BE766665A (fr) * | 1971-05-03 | 1971-10-01 | Mines Fond Zinc Vieille | Procede de preparation d'un pigment a base d'oxyde de fer. |
-
1974
- 1974-09-13 GB GB40112/74A patent/GB1509537A/en not_active Expired
-
1975
- 1975-04-10 CA CA224,303A patent/CA1035580A/en not_active Expired
- 1975-08-05 US US05/602,020 patent/US3976743A/en not_active Expired - Lifetime
- 1975-08-28 FR FR7526536A patent/FR2284682A1/fr active Granted
- 1975-08-29 BE BE159618A patent/BE832924A/xx not_active IP Right Cessation
- 1975-09-10 NO NO753098A patent/NO142995C/no unknown
- 1975-09-11 JP JP10951475A patent/JPS5621813B2/ja not_active Expired
- 1975-09-12 NL NLAANVRAGE7510779,A patent/NL180022C/xx not_active IP Right Cessation
- 1975-09-12 ES ES440895A patent/ES440895A1/es not_active Expired
- 1975-09-12 DE DE2540641A patent/DE2540641C2/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306506A1 (de) * | 1982-02-24 | 1983-09-08 | Sherritt Gordon Mines Ltd., Toronto, Ontario | Verfahren zur zinkgewinnung aus zinkhaltigem sulfidischen material |
Also Published As
| Publication number | Publication date |
|---|---|
| US3976743A (en) | 1976-08-24 |
| AU8448475A (en) | 1977-03-10 |
| GB1509537A (en) | 1978-05-04 |
| JPS5154825A (enExample) | 1976-05-14 |
| BE832924A (fr) | 1975-12-16 |
| NL180022C (nl) | 1986-12-16 |
| JPS5621813B2 (enExample) | 1981-05-21 |
| NL7510779A (nl) | 1976-03-16 |
| FR2284682A1 (fr) | 1976-04-09 |
| NL180022B (nl) | 1986-07-16 |
| ES440895A1 (es) | 1977-03-01 |
| NO753098L (enExample) | 1976-03-16 |
| CA1035580A (en) | 1978-08-01 |
| FR2284682B1 (enExample) | 1981-12-24 |
| NO142995B (no) | 1980-08-18 |
| DE2540641A1 (de) | 1976-04-01 |
| NO142995C (no) | 1980-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |