CA2123417A1 - Cell for the Electrolysis of Alumina Preferably at Low Temperatures - Google Patents
Cell for the Electrolysis of Alumina Preferably at Low TemperaturesInfo
- Publication number
- CA2123417A1 CA2123417A1 CA 2123417 CA2123417A CA2123417A1 CA 2123417 A1 CA2123417 A1 CA 2123417A1 CA 2123417 CA2123417 CA 2123417 CA 2123417 A CA2123417 A CA 2123417A CA 2123417 A1 CA2123417 A1 CA 2123417A1
- Authority
- CA
- Canada
- Prior art keywords
- cathodes
- anodes
- electrolysis
- electrolyte
- upright
- 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
- 238000005868 electrolysis reaction Methods 0.000 title abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 125000006850 spacer group Chemical group 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
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)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
An electrolysis cell for the production of aluminium by the electrolysis of alumina dissolved in a molten halide electrolyte, preferably at a temperature below 880 °C, using a multimonopolar arrangement of substantially non-consumable anodes (2) and cathodes (1) with facing operative surfaces which are upright or at a slope and are in spaced substantially parallel relationship, enabling operation at low anode current density with an acceptable production per unit cell floor area. The operative surface area of the anodes (2) and cathodes (1) is high due to their upright of sloping configuration. The operative surfaces of the anodes (2) and possibly of the cathodes (1) can be increased by making them porous, preferably with a reticulated skeletal structure, e.g. with a porous active part (13) on opposite faces of a central current feeder (12). There is an upward circulation of electrolyte by gas lift between the electrodes, there being electrolyte circulation guide means such as spacers (5) adjacent the edges of the facing anodes (2) and cathodes (1).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP1991/002219 WO1992009724A1 (en) | 1990-11-28 | 1991-11-20 | Electrode assemblies and multimonopolar cells for aluminium electrowinning |
| WOPCT/EP91/02219 | 1991-11-20 | ||
| EP92810212 | 1992-03-24 | ||
| ATEP92810212.8 | 1992-03-24 | ||
| PCT/EP1992/002666 WO1993010281A1 (en) | 1991-11-20 | 1992-11-19 | Cell for the electrolysis of alumina preferably at law temperatures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2123417A1 true CA2123417A1 (en) | 1993-05-27 |
| CA2123417C CA2123417C (en) | 1999-07-06 |
Family
ID=26069895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002123417A Expired - Fee Related CA2123417C (en) | 1991-11-20 | 1992-11-19 | Cell for the electrolysis of alumina preferably at low temperatures |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU659247B2 (en) |
| CA (1) | CA2123417C (en) |
| DE (1) | DE69210038T2 (en) |
| NO (1) | NO309155B1 (en) |
| WO (1) | WO1993010281A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5728466A (en) * | 1995-08-07 | 1998-03-17 | Moltech Invent S.A. | Hard and abrasion resistant surfaces protecting cathode blocks of aluminium electrowinning cells |
| US5938914A (en) * | 1997-09-19 | 1999-08-17 | Aluminum Company Of America | Molten salt bath circulation design for an electrolytic cell |
| EP1055019A1 (en) * | 1998-02-11 | 2000-11-29 | MOLTECH Invent S.A. | Drained cathode aluminium electrowinning cell with improved alumina distribution |
| ES2238318T3 (en) * | 1999-10-26 | 2005-09-01 | Moltech Invent S.A. | CELL FOR ELECTROLYTIC EXTRACTION OF ALUMINUM WITH CATHEDE DRAINED WITH BETTER CIRCULATION OF ELECTROLYTE. |
| US8480876B2 (en) | 2007-12-26 | 2013-07-09 | Theodore R. Beck | Aluminum production cell |
| RU2586183C1 (en) * | 2015-01-22 | 2016-06-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" | Electrolysis cell for producing liquid metals by electrolysis of melts |
| WO2021012055A1 (en) * | 2019-07-25 | 2021-01-28 | 2555663 Ontario Limited | Molten salt membrane electrolyzer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4110178A (en) * | 1977-05-17 | 1978-08-29 | Aluminum Company Of America | Flow control baffles for molten salt electrolysis |
| US4405433A (en) * | 1981-04-06 | 1983-09-20 | Kaiser Aluminum & Chemical Corporation | Aluminum reduction cell electrode |
| US4402808A (en) * | 1982-07-30 | 1983-09-06 | Aluminum Company Of America | Gasket for sealing joints between electrodes and adjacent cell lining and for improving bath circulation in electrolysis cells |
| AU2713684A (en) * | 1983-04-26 | 1984-11-01 | Aluminium Company Of America | Electrolytic cell |
| EP0192602B1 (en) * | 1985-02-18 | 1992-11-11 | MOLTECH Invent S.A. | Low temperature alumina electrolysis |
| US4865701A (en) * | 1988-08-31 | 1989-09-12 | Beck Theodore R | Electrolytic reduction of alumina |
| US5006209A (en) * | 1990-02-13 | 1991-04-09 | Electrochemical Technology Corp. | Electrolytic reduction of alumina |
| EP0560814B1 (en) * | 1990-11-28 | 1995-07-05 | MOLTECH Invent S.A. | Electrode assemblies and multimonopolar cells for aluminium electrowinning |
-
1992
- 1992-11-19 CA CA002123417A patent/CA2123417C/en not_active Expired - Fee Related
- 1992-11-19 AU AU29440/92A patent/AU659247B2/en not_active Ceased
- 1992-11-19 WO PCT/EP1992/002666 patent/WO1993010281A1/en active IP Right Grant
- 1992-11-19 DE DE69210038T patent/DE69210038T2/en not_active Expired - Fee Related
-
1994
- 1994-05-19 NO NO941882A patent/NO309155B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO941882L (en) | 1994-05-19 |
| NO941882D0 (en) | 1994-05-19 |
| DE69210038D1 (en) | 1996-05-23 |
| NO309155B1 (en) | 2000-12-18 |
| AU2944092A (en) | 1993-06-15 |
| DE69210038T2 (en) | 1996-09-05 |
| CA2123417C (en) | 1999-07-06 |
| WO1993010281A1 (en) | 1993-05-27 |
| AU659247B2 (en) | 1995-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |