CA2498622A1 - Aluminium electrowinning cells with metal-based anodes - Google Patents
Aluminium electrowinning cells with metal-based anodes Download PDFInfo
- Publication number
- CA2498622A1 CA2498622A1 CA002498622A CA2498622A CA2498622A1 CA 2498622 A1 CA2498622 A1 CA 2498622A1 CA 002498622 A CA002498622 A CA 002498622A CA 2498622 A CA2498622 A CA 2498622A CA 2498622 A1 CA2498622 A1 CA 2498622A1
- Authority
- CA
- Canada
- Prior art keywords
- weight
- cell
- fluoride
- anode
- aluminium
- 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.)
- Granted
Links
- 239000004411 aluminium Substances 0.000 title claims abstract 8
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract 8
- 238000005363 electrowinning Methods 0.000 title claims abstract 4
- 229910052751 metal Inorganic materials 0.000 title claims abstract 4
- 239000002184 metal Substances 0.000 title claims abstract 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract 24
- 239000003792 electrolyte Substances 0.000 claims abstract 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract 14
- 239000011248 coating agent Substances 0.000 claims abstract 12
- 238000000576 coating method Methods 0.000 claims abstract 12
- 229910052759 nickel Inorganic materials 0.000 claims abstract 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 10
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract 8
- 239000000470 constituent Substances 0.000 claims abstract 8
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims abstract 8
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims abstract 8
- 239000010941 cobalt Substances 0.000 claims abstract 5
- 229910017052 cobalt Inorganic materials 0.000 claims abstract 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract 5
- 229910052742 iron Inorganic materials 0.000 claims abstract 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract 4
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract 4
- 229910052802 copper Inorganic materials 0.000 claims abstract 4
- 239000010949 copper Substances 0.000 claims abstract 4
- 235000003270 potassium fluoride Nutrition 0.000 claims abstract 4
- 239000011698 potassium fluoride Substances 0.000 claims abstract 4
- 235000013024 sodium fluoride Nutrition 0.000 claims abstract 4
- 239000011775 sodium fluoride Substances 0.000 claims abstract 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract 3
- 239000000956 alloy Substances 0.000 claims abstract 3
- 229910052799 carbon Inorganic materials 0.000 claims abstract 3
- 229910052758 niobium Inorganic materials 0.000 claims abstract 3
- 239000010955 niobium Substances 0.000 claims abstract 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052595 hematite Inorganic materials 0.000 claims abstract 2
- 239000011019 hematite Substances 0.000 claims abstract 2
- 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 abstract 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 4
- XVVDIUTUQBXOGG-UHFFFAOYSA-N [Ce].FOF Chemical compound [Ce].FOF XVVDIUTUQBXOGG-UHFFFAOYSA-N 0.000 claims 2
- XJHCXCQVJFPJIK-UHFFFAOYSA-M caesium fluoride Chemical compound [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 claims 2
- 239000010406 cathode material Substances 0.000 claims 2
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 229910000480 nickel oxide Inorganic materials 0.000 claims 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims 2
- AHLATJUETSFVIM-UHFFFAOYSA-M rubidium fluoride Chemical compound [F-].[Rb+] AHLATJUETSFVIM-UHFFFAOYSA-M 0.000 claims 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 2
- 238000009736 wetting Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910000640 Fe alloy Inorganic materials 0.000 claims 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 claims 1
- 229910001632 barium fluoride Inorganic materials 0.000 claims 1
- QCCDYNYSHILRDG-UHFFFAOYSA-K cerium(3+);trifluoride Chemical compound [F-].[F-].[F-].[Ce+3] QCCDYNYSHILRDG-UHFFFAOYSA-K 0.000 claims 1
- 239000011195 cermet Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229910000428 cobalt oxide Inorganic materials 0.000 claims 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims 1
- 239000002019 doping agent Substances 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims 1
- 150000001247 metal acetylides Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 150000004767 nitrides Chemical class 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- FVRNDBHWWSPNOM-UHFFFAOYSA-L strontium fluoride Chemical compound [F-].[F-].[Sr+2] FVRNDBHWWSPNOM-UHFFFAOYSA-L 0.000 claims 1
- 229910001637 strontium fluoride Inorganic materials 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
- C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
A cell for the electrowinning of aluminium comprises a metal-based anode (10 ) containing at least one of nickel, cobalt and iron, for example an anode mad e from an alloy consisting of 50 to 60 weight% in total of nickel and/or cobal t; 25 to 40 weight% iron; 6 to 12 weight% copper; 0.5 to 2 weight% aluminium and/or niobium; and 0.5 to 1.5 weight% in total of further constituents. The anode (10) may have an applied hematite-based coating and optionally a ceriu m oxyfluoride-based outermost coating. The cell contains a fluoride-containing molten electrolyte (5) at a temperature below 940~C, in which the anode is immersed and which consists of: 5 to 14 weight% dissolved alumina; 35 to 45 weight% aluminium fluoride; 30 to 45 weight% sodium fluoride; 5 to 20 weight % potassium fluoride; 0 to 5 weight% calcium fluoride; and 0 to 5 weight% in total of one or more further constituents. A nickel-containing anode stem (14b) can be used to suspend the anode (10) in the electrolyte facing a cathode (21,21A,25) that has an aluminium-wettable surface (20), in particul ar a drained horizontal or inclined surface.
Claims (23)
1. A cell for electrowinning aluminium from alumina, comprising:
- a metal-based anode having an outer part that has an electrochemically active oxide-based surface and that contains at least one of nickel, cobalt and iron;
- a fluoride-containing molten electrolyte in which the active anode surface is immersed and which is at a temperature below 940°C, in particular in the range from 880° to 920°C, and which consists of:
- 5 to 14 weight% dissolved alumina;
- 35 to 45 weight% aluminium fluoride;
- 30 to 45 weight% sodium fluoride;
- 5 to 20 weight% potassium fluoride;
- 0 to 5 weight% calcium fluoride; and - 0 to 5 weight% in total of one or more further constituents.
- a metal-based anode having an outer part that has an electrochemically active oxide-based surface and that contains at least one of nickel, cobalt and iron;
- a fluoride-containing molten electrolyte in which the active anode surface is immersed and which is at a temperature below 940°C, in particular in the range from 880° to 920°C, and which consists of:
- 5 to 14 weight% dissolved alumina;
- 35 to 45 weight% aluminium fluoride;
- 30 to 45 weight% sodium fluoride;
- 5 to 20 weight% potassium fluoride;
- 0 to 5 weight% calcium fluoride; and - 0 to 5 weight% in total of one or more further constituents.
2. The cell of claim 1, wherein the electrolyte contains 7 to 10 weight% alumina.
3. The cell of claim 1 or 2, wherein the electrolyte contains 38 to 42 weight% aluminium fluoride.
4. The cell of any preceding claim, wherein the electrolyte contains 34 to 43 weight% sodium fluoride.
5. The cell of any preceding claim, wherein the electrolyte contains 8 to 15 weight% potassium fluoride.
6. The cell of any preceding claim, wherein the electrolyte contains 2 to 4 weight% calcium fluoride.
7. The cell of any preceding claim, wherein the electrolyte contains 0 to 3 weight% of said one or more further constituents.
8. The cell of any preceding claim, wherein said one or more further constituents comprise at least one fluoride selected from magnesium fluoride, lithium fluoride, cesium fluoride, rubidium fluoride, strontium fluoride, barium fluoride and cerium fluoride.
9. The cell of any preceding claim, comprising a cathode that has an aluminium-wettable surface, in particular a horizontal or inclined drained surface.
10. The cell of claim 9, wherein the cathode has an aluminium-wettable coating that comprises a refractory boride and/or an aluminium-wetting oxide.
11. The cell of any preceding claim, wherein the anode has a metallic or cermet body and an oxide layer on the anode body.
12. The cell of any preceding claim, wherein the anode body is made from an iron alloy containing nickel and/or cobalt.
13. The cell of claim 12, wherein the anode body is made from an alloy consisting of:
- 40 to 80% nickel and/or cobalt, in particular 50 to 60 weight%;
- 9 to 55 weight% iron, in particular 25 to 40 weight%;
- 5 to 15 weight% copper, in particular 6 to 12 weight%;
- 0 to 4 weight% in total of at least one of aluminium, niobium and tantalum, in particular 0.5 to 2 weight%;
and - 0 to 2 weight% in total of further constituents, in particular 0.5 to 1 weight%.
- 40 to 80% nickel and/or cobalt, in particular 50 to 60 weight%;
- 9 to 55 weight% iron, in particular 25 to 40 weight%;
- 5 to 15 weight% copper, in particular 6 to 12 weight%;
- 0 to 4 weight% in total of at least one of aluminium, niobium and tantalum, in particular 0.5 to 2 weight%;
and - 0 to 2 weight% in total of further constituents, in particular 0.5 to 1 weight%.
14. The cell of claim 12 or 13, wherein the anode body is covered with an integral iron oxide-based layer containing up to 35 weight% nickel oxide and/or cobalt oxide, in particular from 5 to 10 weight% nickel oxide.
15. The cell of any preceding claim, wherein the anode comprises an applied iron oxide-based coating.
16. The cell of claim 15, wherein the anode coating contains Fe2O3 and optionally: at least one dopant selected from TiO2, ZnO and CuO and/or at least one inert material selected from nitrides and carbides.
17. The cell of any preceding claim, wherein the anode comprises a cerium oxyfluoride-based outermost coating.
18. The cell of any preceding claim, wherein the anode is suspended in the electrolyte by a nickel-containing stem, in particular a stem having a nickel-containing core covered with an applied oxide coating.
19. The cell of claim 18, wherein the nickel containing stem is covered with an applied coating containing aluminium oxide and titanium oxide.
20. The cell of claim 18 or 19, wherein the core of the stem comprises a copper inner part and a nickel-based outer part.
21. The cell of any preceding claim, comprising at least one component that contains a sodium-active cathodic material, such as elemental carbon, said sodium-active cathodic material being shielded from the electrolyte by a sodium-inert layer to inhibit the presence in the molten electrolyte of soluble cathodically-produced sodium metal that constitutes an agent for dissolving the active oxide-based anode surface.
22. A cell according to claim 1, comprising:
- a metal-based anode having an outer part that has an electrochemically active oxide-based surface and that is made from an alloy consisting of:
- 50 to 60 weight% in total of nickel and/or cobalt;
- 25 to 40 weight% iron;
- 6 to 12 weight% copper;
- 0.5 to 2 weight% aluminium and/or niobium; and - 0.5 to 1.5 weight% in total of further constituents, the anode comprising an applied hematite-based coating and optionally a cerium oxyfluoride-based outermost coating;
- a nickel-containing anode stem for suspending the anode in the electrolyte, the stem being covered with a coating of aluminium oxide and titanium oxide;
- a fluoride-containing molten electrolyte in which the active anode surface is immersed and which is at a temperature in the range from 880° to 930°C and which consists of:
- 7 to 10 weight% dissolved alumina;
- 38 to 42 weight% aluminium fluoride;
- 34 to 43 weight% sodium fluoride;
- 8 to 15 weight% potassium fluoride;
- 2 to 4 weight% calcium fluoride; and - 0 to 3 weight% in total of one or more further constituents;
and - a cathode having an aluminium-wettable surface, in particular a drained horizontal or inclined surface, formed by an aluminium-wettable coating of refractory hard material and/or aluminium-wetting oxide.
- a metal-based anode having an outer part that has an electrochemically active oxide-based surface and that is made from an alloy consisting of:
- 50 to 60 weight% in total of nickel and/or cobalt;
- 25 to 40 weight% iron;
- 6 to 12 weight% copper;
- 0.5 to 2 weight% aluminium and/or niobium; and - 0.5 to 1.5 weight% in total of further constituents, the anode comprising an applied hematite-based coating and optionally a cerium oxyfluoride-based outermost coating;
- a nickel-containing anode stem for suspending the anode in the electrolyte, the stem being covered with a coating of aluminium oxide and titanium oxide;
- a fluoride-containing molten electrolyte in which the active anode surface is immersed and which is at a temperature in the range from 880° to 930°C and which consists of:
- 7 to 10 weight% dissolved alumina;
- 38 to 42 weight% aluminium fluoride;
- 34 to 43 weight% sodium fluoride;
- 8 to 15 weight% potassium fluoride;
- 2 to 4 weight% calcium fluoride; and - 0 to 3 weight% in total of one or more further constituents;
and - a cathode having an aluminium-wettable surface, in particular a drained horizontal or inclined surface, formed by an aluminium-wettable coating of refractory hard material and/or aluminium-wetting oxide.
23. A method of electrowinning aluminium in a cell as defined in any preceding claim, comprising electrolysing the dissolved alumina to produce oxygen on the anode and aluminium cathodically, and supplying alumina to the electrolyte to maintain therein a concentration of dissolved alumina of 5 to 14 weight%, in particular 7 to 10 weight%.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IB0204059 | 2002-10-18 | ||
| IBPCT/IB02/04059 | 2002-10-18 | ||
| PCT/IB2003/004649 WO2004035871A1 (en) | 2002-10-18 | 2003-10-17 | Aluminium electrowinning cells with metal-based anodes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2498622A1 true CA2498622A1 (en) | 2004-04-29 |
| CA2498622C CA2498622C (en) | 2011-09-20 |
Family
ID=32104592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2498622A Expired - Fee Related CA2498622C (en) | 2002-10-18 | 2003-10-17 | Aluminium electrowinning cells with metal-based anodes |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20110031129A1 (en) |
| EP (1) | EP1554416B1 (en) |
| CN (1) | CN1735717B (en) |
| AT (1) | ATE543927T1 (en) |
| AU (1) | AU2003269385B2 (en) |
| CA (1) | CA2498622C (en) |
| ES (1) | ES2381927T3 (en) |
| NO (1) | NO20052377L (en) |
| NZ (1) | NZ538777A (en) |
| RU (1) | RU2318924C2 (en) |
| SI (1) | SI1554416T1 (en) |
| WO (1) | WO2004035871A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ540408A (en) * | 2003-02-20 | 2007-04-27 | Moltech Invent Sa | Aluminium electrowinning cells with metal-based anodes and a fluoride-containing molten electrolyte |
| EP1763595A2 (en) * | 2004-03-18 | 2007-03-21 | MOLTECH Invent S.A. | Aluminium electrowinning cells with non-carbon anodes |
| CN100465350C (en) * | 2005-06-24 | 2009-03-04 | 曹大力 | Method of preparing aluminium-iron base alloy in electrolytic tank using iron and its alloy as anode |
| WO2010026131A2 (en) * | 2008-09-08 | 2010-03-11 | Moltech Invent S.A. | Metallic oxygen evolving anode operating at high current density for aluminium reduction cells |
| CN101586250B (en) * | 2009-06-10 | 2010-12-29 | 中南大学 | Composite coating, preparation method and application thereof |
| RU2457286C1 (en) * | 2011-03-02 | 2012-07-27 | Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской Академии наук | Electrolysis method of molten salts with oxygen-containing additives using inert anode |
| CN103484891B (en) * | 2012-06-11 | 2016-06-15 | 内蒙古联合工业有限公司 | A kind of electrolgtic aluminium electrolyzer and use the electrolysis process of this electrolyzer |
| KR101801453B1 (en) | 2012-06-11 | 2017-11-24 | 이너 몽골리아 유나이티드 인더스트리얼 씨오,. 엘티디. | Electrolyte used for aluminum electrolysis and electrolysis process using the electrolyte |
| CN103014769A (en) * | 2012-11-26 | 2013-04-03 | 中国铝业股份有限公司 | Alloy inert anode for aluminium electrolysis and preparation method thereof |
| CA2917342C (en) * | 2013-07-09 | 2018-05-29 | Obshchestvo S Ogranichennoy Otvetstvennost'yu "Obedinennaya Kompaniya Rusal Inzhenerno-Tekhnologicheskiy Tsentr" | Electrolyte for obtaining melts using an aluminum electrolyzer |
| US10711359B2 (en) * | 2013-08-19 | 2020-07-14 | United Company RUSAL Engineering and Technology Centre LLC | Iron-based anode for obtaining aluminum by the electrolysis of melts |
| CN105132952B (en) * | 2015-08-26 | 2017-09-29 | 贵州理工学院 | It is a kind of to reduce the electrolyte system of perfluocarbon discharge capacity |
| KR102562722B1 (en) * | 2016-02-01 | 2023-08-03 | 재단법인 포항산업과학연구원 | Anode for electrolysis, electrolytic cell comprising the same, and electrolysis process using the electrolytic cell |
| RU2698162C2 (en) * | 2017-03-01 | 2019-08-22 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Perforated metal inert anode for aluminium production by molten electrolysis |
| RU2686408C1 (en) * | 2018-06-20 | 2019-04-25 | Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской Академии наук | Electrolytic production method of aluminum |
| CN114717610B (en) * | 2022-05-16 | 2023-08-08 | 中国铝业股份有限公司 | Method for reducing potassium content in aluminum electrolysis fluorine-carrying aluminum oxide |
| WO2024030044A1 (en) * | 2022-08-02 | 2024-02-08 | Владислав Владимирович ФУРСЕНКО | Method for producing aluminium by electrolysis of a solution of alumina in cryolite |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US400766A (en) * | 1889-04-02 | Process of reducing aluminium by electrolysis | ||
| US400664A (en) * | 1886-07-09 | 1889-04-02 | M Hall Charles | Process of reducing aluminium from its fluoride salts by electrolysis |
| SU554318A1 (en) * | 1974-03-19 | 1977-04-15 | Институт общей и неорганической химии АН Украинской ССР | Electrolyte to obtain aluminum-silicon alloys |
| US5006209A (en) * | 1990-02-13 | 1991-04-09 | Electrochemical Technology Corp. | Electrolytic reduction of alumina |
| US5725744A (en) * | 1992-03-24 | 1998-03-10 | Moltech Invent S.A. | Cell for the electrolysis of alumina at low temperatures |
| US5284562A (en) * | 1992-04-17 | 1994-02-08 | Electrochemical Technology Corp. | Non-consumable anode and lining for aluminum electrolytic reduction cell |
| US6258247B1 (en) * | 1998-02-11 | 2001-07-10 | Northwest Aluminum Technology | Bath for electrolytic reduction of alumina and method therefor |
| US6497807B1 (en) * | 1998-02-11 | 2002-12-24 | Northwest Aluminum Technologies | Electrolyte treatment for aluminum reduction |
| US6692631B2 (en) * | 2002-02-15 | 2004-02-17 | Northwest Aluminum | Carbon containing Cu-Ni-Fe anodes for electrolysis of alumina |
| US6800191B2 (en) * | 2002-03-15 | 2004-10-05 | Northwest Aluminum Technologies | Electrolytic cell for producing aluminum employing planar anodes |
| EP1763595A2 (en) * | 2004-03-18 | 2007-03-21 | MOLTECH Invent S.A. | Aluminium electrowinning cells with non-carbon anodes |
-
2003
- 2003-10-17 ES ES03751166T patent/ES2381927T3/en not_active Expired - Lifetime
- 2003-10-17 CN CN2003801070764A patent/CN1735717B/en not_active Expired - Lifetime
- 2003-10-17 AU AU2003269385A patent/AU2003269385B2/en not_active Ceased
- 2003-10-17 RU RU2005115103/02A patent/RU2318924C2/en not_active IP Right Cessation
- 2003-10-17 WO PCT/IB2003/004649 patent/WO2004035871A1/en active Search and Examination
- 2003-10-17 CA CA2498622A patent/CA2498622C/en not_active Expired - Fee Related
- 2003-10-17 AT AT03751166T patent/ATE543927T1/en active
- 2003-10-17 EP EP03751166A patent/EP1554416B1/en not_active Expired - Lifetime
- 2003-10-17 NZ NZ538777A patent/NZ538777A/en not_active IP Right Cessation
- 2003-10-17 SI SI200332133T patent/SI1554416T1/en unknown
- 2003-10-17 US US10/530,884 patent/US20110031129A1/en not_active Abandoned
-
2005
- 2005-05-13 NO NO20052377A patent/NO20052377L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004035871A1 (en) | 2004-04-29 |
| NO20052377L (en) | 2005-05-13 |
| AU2003269385A1 (en) | 2004-05-04 |
| CA2498622C (en) | 2011-09-20 |
| RU2318924C2 (en) | 2008-03-10 |
| ATE543927T1 (en) | 2012-02-15 |
| EP1554416A1 (en) | 2005-07-20 |
| AU2003269385B2 (en) | 2009-06-04 |
| CN1735717B (en) | 2011-12-28 |
| EP1554416B1 (en) | 2012-02-01 |
| RU2005115103A (en) | 2005-10-27 |
| US20110031129A1 (en) | 2011-02-10 |
| NZ538777A (en) | 2007-02-23 |
| CN1735717A (en) | 2006-02-15 |
| SI1554416T1 (en) | 2012-05-31 |
| ES2381927T3 (en) | 2012-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20141017 |