AU530394B2 - Alumina reduction cell - Google Patents
Alumina reduction cellInfo
- Publication number
- AU530394B2 AU530394B2 AU59791/80A AU5979180A AU530394B2 AU 530394 B2 AU530394 B2 AU 530394B2 AU 59791/80 A AU59791/80 A AU 59791/80A AU 5979180 A AU5979180 A AU 5979180A AU 530394 B2 AU530394 B2 AU 530394B2
- Authority
- AU
- Australia
- Prior art keywords
- cell
- carbon
- molten
- molten aluminium
- alumina
- 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.)
- Ceased
Links
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 3
- 239000004411 aluminium Substances 0.000 abstract 4
- 229910052782 aluminium Inorganic materials 0.000 abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 abstract 2
- 229910033181 TiB2 Inorganic materials 0.000 abstract 2
- 230000001464 adherent effect Effects 0.000 abstract 1
- 229910001610 cryolite Inorganic materials 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/66—Electroplating: Baths therefor from 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
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)
- Battery Electrode And Active Subsutance (AREA)
- Catalysts (AREA)
Abstract
Alumina reduction cells are used to prepare aluminium metal by the electrolytic reduction of alumina dissolved in molten cryolite. The molten aluminium formed collects at the bottom of the cell. When the cell floor serves as cathode and is of carbon, the molten aluminium does not wet the carbon making it necessary to increase the inter-electrode distance and reducing efficiency. The invention provides a cell wherein a floor cathode comprises a carbon substrate having an adherent surface layer of electrodeposited titanium diboride which is readily wettable by molten aluminium and which makes possible considerable savings in the expense of running the cell. The titanium diboride layer can be formed in situ in the cell or can be formed outside the cell on carbonaceous elements which are subsequently installed in the cell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7922847 | 1979-07-02 | ||
| GB7922847 | 1979-07-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5979180A AU5979180A (en) | 1981-01-15 |
| AU530394B2 true AU530394B2 (en) | 1983-07-14 |
Family
ID=10506221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU59791/80A Ceased AU530394B2 (en) | 1979-07-02 | 1980-07-01 | Alumina reduction cell |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0021850B1 (en) |
| JP (1) | JPS569384A (en) |
| AT (1) | ATE4331T1 (en) |
| AU (1) | AU530394B2 (en) |
| CA (1) | CA1172991A (en) |
| DE (1) | DE3064396D1 (en) |
| GR (1) | GR67190B (en) |
| NO (1) | NO801986L (en) |
| NZ (1) | NZ194195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU615596B2 (en) * | 1989-01-09 | 1991-10-03 | Schuyler, Lyndsay Jessica | Supersaturation plating of aluminum wettable cathode coatings during aluminum smelting in drained cathode cells |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2500488B1 (en) * | 1981-02-24 | 1985-07-12 | Pechiney Aluminium | PROCESS FOR PRODUCING ALUMINUM ACCORDING TO THE HALL-HEROULT TECHNIQUE AND CATHODE IN ELECTRICALLY CONDUCTIVE REFRACTORY FOR IMPLEMENTING THE PROCESS |
| DE3277506D1 (en) * | 1981-07-27 | 1987-11-26 | Commw Aluminium Corp | Refractory hard material-carbon fiber cathode coatings for aluminum reduction cells |
| US4560448A (en) * | 1982-05-10 | 1985-12-24 | Eltech Systems Corporation | Aluminum wettable materials for aluminum production |
| EP0094353B1 (en) * | 1982-05-10 | 1988-01-20 | Eltech Systems Corporation | Aluminum wettable materials |
| US5227045A (en) * | 1989-01-09 | 1993-07-13 | Townsend Douglas W | Supersaturation coating of cathode substrate |
| US5961811A (en) * | 1997-10-02 | 1999-10-05 | Emec Consultants | Potlining to enhance cell performance in aluminum production |
| US6616829B2 (en) | 2001-04-13 | 2003-09-09 | Emec Consultants | Carbonaceous cathode with enhanced wettability for aluminum production |
| RU2299278C2 (en) * | 2005-07-29 | 2007-05-20 | Общество с ограниченной ответственностью "Инженерно-технологический центр" | Wettable coating on aluminum cell hearth applying method |
| RU2337184C2 (en) * | 2006-11-30 | 2008-10-27 | Общество с ограниченной ответственностью "Эксперт-Ал" (ООО "Эксперт-Ал") | Method of producing and maintaining protective wettable cover on carbon blocks of cathode assembly of electrolytic tank for aluminium production |
| CN102373488A (en) * | 2011-10-26 | 2012-03-14 | 中国铝业股份有限公司 | Method for reducing cathode drop of aluminium cell |
| RU2558703C2 (en) * | 2013-10-08 | 2015-08-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" НГТУ | Method of pouring ladle lining manufacturing |
| CN109695044B (en) * | 2018-12-18 | 2020-10-09 | 广西师范大学 | TiB with uniform and compact structure2Layered titanium-based cathode material and method for producing same |
| EP4733288A1 (en) | 2024-10-24 | 2026-04-29 | Dubai Aluminium PJSC | Process for enhancing cathode lifetime in electrolytic cells for the hall-héroult process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827954A (en) * | 1969-04-14 | 1974-08-06 | Us Interior | Electrodeposition of metallic boride coatings |
| US3661736A (en) * | 1969-05-07 | 1972-05-09 | Olin Mathieson | Refractory hard metal composite cathode aluminum reduction cell |
| DE2305281A1 (en) * | 1972-02-04 | 1973-08-09 | Borax Cons Ltd | ELECTRODE FOR MELT FLOW ELECTROLYSIS AND METHOD OF PRODUCING IT |
| CH576005A5 (en) * | 1972-03-21 | 1976-05-31 | Alusuisse | |
| US3775271A (en) * | 1972-12-18 | 1973-11-27 | Interior | Electrolytic preparation of titanium and zirconium diborides using a molten, sodium salt electrolyte |
| US4093524A (en) * | 1976-12-10 | 1978-06-06 | Kaiser Aluminum & Chemical Corporation | Bonding of refractory hard metal |
-
1980
- 1980-06-30 NZ NZ194195A patent/NZ194195A/en unknown
- 1980-06-30 CA CA000355116A patent/CA1172991A/en not_active Expired
- 1980-07-01 AT AT80302219T patent/ATE4331T1/en not_active IP Right Cessation
- 1980-07-01 AU AU59791/80A patent/AU530394B2/en not_active Ceased
- 1980-07-01 GR GR62335A patent/GR67190B/el unknown
- 1980-07-01 NO NO801986A patent/NO801986L/en unknown
- 1980-07-01 EP EP80302219A patent/EP0021850B1/en not_active Expired
- 1980-07-01 JP JP9048480A patent/JPS569384A/en active Granted
- 1980-07-01 DE DE8080302219T patent/DE3064396D1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU615596B2 (en) * | 1989-01-09 | 1991-10-03 | Schuyler, Lyndsay Jessica | Supersaturation plating of aluminum wettable cathode coatings during aluminum smelting in drained cathode cells |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS569384A (en) | 1981-01-30 |
| JPS6343475B2 (en) | 1988-08-30 |
| NO801986L (en) | 1981-01-05 |
| NZ194195A (en) | 1982-03-30 |
| ATE4331T1 (en) | 1983-08-15 |
| EP0021850A1 (en) | 1981-01-07 |
| CA1172991A (en) | 1984-08-21 |
| AU5979180A (en) | 1981-01-15 |
| DE3064396D1 (en) | 1983-09-01 |
| GR67190B (en) | 1981-06-24 |
| EP0021850B1 (en) | 1983-07-27 |
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