NO20040143L - Alloy-based anode structures for aluminum production - Google Patents
Alloy-based anode structures for aluminum productionInfo
- Publication number
- NO20040143L NO20040143L NO20040143A NO20040143A NO20040143L NO 20040143 L NO20040143 L NO 20040143L NO 20040143 A NO20040143 A NO 20040143A NO 20040143 A NO20040143 A NO 20040143A NO 20040143 L NO20040143 L NO 20040143L
- Authority
- NO
- Norway
- Prior art keywords
- metal
- electrochemically active
- active
- alloy
- anode
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 2
- 239000000956 alloy Substances 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 239000003792 electrolyte Substances 0.000 abstract 3
- 230000005923 long-lasting effect Effects 0.000 abstract 2
- 229910001092 metal group alloy Inorganic materials 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 238000005363 electrowinning Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 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
- 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
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)
- Powder Metallurgy (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
A long-lasting metal-based oxygen-evolving anode (10) for the electrowinning of aluminium from alumina dissolved in a molten electrolyte, has a plurality of electrochemically active anode members (15,15') spaced apart and parallel to one another. Each anode member (15) can comprise a bottom part (15a) which has a substantially constant width over its height and which is extended upwardly by a tapered top part (15b for guiding a circulation a of electrolyte (30) thereon. The bottom part (15a) is usually made of a metal alloy with a substantially flat oxide bottom surface (16) which is electrochemically active for the oxidation of oxygen. The metal alloy can comprise an electrically conductive inert structural metal and an active diffusable metal that during electrolysis slowly diffuses to the electrochemically active bottom surface (16) where it is oxidised for maintaining the electrochemically active bottom surface (16) and slowly dissolves into the molten electrolyte (30), in which case the bottom part (15a) forms a long-lasting supply of the active metal diffusable to the electrochemically active bottom surface (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IB0101275 | 2001-07-13 | ||
| PCT/IB2002/002732 WO2003006716A2 (en) | 2001-07-13 | 2002-07-09 | Alloy-based anode structures for aluminium production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO20040143L true NO20040143L (en) | 2004-01-13 |
Family
ID=11004133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20040143A NO20040143L (en) | 2001-07-13 | 2004-01-13 | Alloy-based anode structures for aluminum production |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040231979A1 (en) |
| EP (1) | EP1448810B1 (en) |
| AT (1) | ATE382722T1 (en) |
| AU (1) | AU2002321684A1 (en) |
| CA (1) | CA2450071A1 (en) |
| DE (1) | DE60224436D1 (en) |
| NO (1) | NO20040143L (en) |
| WO (1) | WO2003006716A2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2375057T3 (en) | 2003-08-14 | 2012-02-24 | Rio Tinto Alcan International Limited | METAL ELECTROLYTIC EXTRACTION CELL WITH ELECTROLYTE PRIFIER. |
| US20110100834A1 (en) * | 2004-06-03 | 2011-05-05 | Vittorio De Nora | High stability flow-through non-carbon anodes for aluminium electrowinning |
| WO2010127401A1 (en) * | 2009-05-07 | 2010-11-11 | Aluminium Smelter Developments Pty Ltd | Wedge contact system |
| CN101580949B (en) * | 2009-06-24 | 2010-08-25 | 中国铝业股份有限公司 | Method for improving stability of aluminum electrolytic bath |
| CN102140652B (en) * | 2011-03-07 | 2012-09-19 | 陈虎政 | Novel anode used for aluminum electrolysis and production method thereof |
| WO2014022394A1 (en) * | 2012-08-01 | 2014-02-06 | Alcoa Inc. | Inert electrodes with low voltage drop and methods of making the same |
| 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 |
| CN108977851B (en) * | 2018-08-01 | 2020-05-05 | 新疆众和股份有限公司 | Anode steel claw for electrolytic aluminum |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3008116A1 (en) * | 1980-03-03 | 1981-09-17 | Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach | GAS-DEVELOPING METAL ELECTRODE FOR ELECTROCHEMICAL PROCESSES |
| DE3345530A1 (en) * | 1983-07-13 | 1985-06-27 | Basf Ag, 6700 Ludwigshafen | GAS-DEVELOPING METAL ELECTRODE FOR ELECTROLYSIS CELLS |
| SK286563B6 (en) * | 1999-01-08 | 2009-01-07 | Moltech Invent S.A. | Aluminium electrowinning cells with oxygen-evolving anodes |
| WO2001042534A2 (en) * | 1999-12-09 | 2001-06-14 | Moltech Invent S.A. | Metal-based anodes for aluminium electrowinning cells |
-
2002
- 2002-07-09 US US10/479,312 patent/US20040231979A1/en not_active Abandoned
- 2002-07-09 DE DE60224436T patent/DE60224436D1/en not_active Expired - Lifetime
- 2002-07-09 CA CA002450071A patent/CA2450071A1/en not_active Abandoned
- 2002-07-09 WO PCT/IB2002/002732 patent/WO2003006716A2/en active IP Right Grant
- 2002-07-09 EP EP02755397A patent/EP1448810B1/en not_active Expired - Lifetime
- 2002-07-09 AU AU2002321684A patent/AU2002321684A1/en not_active Abandoned
- 2002-07-09 AT AT02755397T patent/ATE382722T1/en not_active IP Right Cessation
-
2004
- 2004-01-13 NO NO20040143A patent/NO20040143L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003006716A3 (en) | 2004-06-03 |
| ATE382722T1 (en) | 2008-01-15 |
| EP1448810A2 (en) | 2004-08-25 |
| WO2003006716A2 (en) | 2003-01-23 |
| EP1448810B1 (en) | 2008-01-02 |
| DE60224436D1 (en) | 2008-02-14 |
| AU2002321684A1 (en) | 2003-01-29 |
| CA2450071A1 (en) | 2003-01-23 |
| US20040231979A1 (en) | 2004-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FC2A | Withdrawal, rejection or dismissal of laid open patent application |