NO931932L - Electrode assemblies and multimonopoly cells for electrolytic extraction of aluminum - Google Patents
Electrode assemblies and multimonopoly cells for electrolytic extraction of aluminumInfo
- Publication number
- NO931932L NO931932L NO93931932A NO931932A NO931932L NO 931932 L NO931932 L NO 931932L NO 93931932 A NO93931932 A NO 93931932A NO 931932 A NO931932 A NO 931932A NO 931932 L NO931932 L NO 931932L
- Authority
- NO
- Norway
- Prior art keywords
- anode
- cathode
- aluminum
- electrolyte
- cell
- Prior art date
Links
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
En multimonopolar celle for elektrolytisk utvinning av aluminium ved elektrolyse av alumina oppløst i en saltsmelteelektrolytt omfatter elektrodemontasjer som hver har en ikke- forbrukbar anode og en ikke-forbrukbar katode som begge er motstandsdyktige mot angrep fra elektrolytten og fra det respektive elektrolyseprodukt. Anoden (2) har fortrinnsvis rørform med en aktiv anodeflate (7) på innsiden, og katoden er laget av en eller flere stenger (l) eller rør anbragt i midten av den rørformede anode eller mellom plateanoder, idet katoden strekker seg utenfor bunnen av anoden. Det aktive anodeoverflateareal er større enn det mot dette vendte aktive katodeoverflateareal. Under bruk blir elektrodemontasjen delvis neddykket vertikalt eller med en helling i elektrolytten (3) idet katoden dypper ned i et lag (4) av aluminium på cellebunnen. Flytende aluminium dannet under elektrolyse på katodeoverflaten drypper eller flyter nedad til cellens bunn, og oksygen utviklet på anodeoverflaten stiger opp gjennom elektrolytten og unnslipper ved toppen av den rørformede anode. Strømtilførsel til katodestengene foregår fortrinnsvis gjennom cellebunnen og laget (4) av aluminium.A multi-monopolar cell for electrolytic recovery of aluminum by electrolysis of alumina dissolved in a salt-melt electrolyte comprises electrode assemblies, each having a non-consumable anode and a non-consumable cathode, both resistant to attack by the electrolyte and from the respective electrolysis product. The anode (2) preferably has tubular shape with an active anode surface (7) on the inside, and the cathode is made of one or more rods (1) or tubes located in the middle of the tubular anode or between plate anodes, the cathode extending beyond the bottom of the anode . The active anode surface area is larger than that facing this active cathode surface area. In use, the electrode assembly is partially submerged vertically or with an inclination in the electrolyte (3) as the cathode dips into a layer (4) of aluminum on the cell bottom. Liquid aluminum formed during electrolysis on the cathode surface drips or flows down to the bottom of the cell, and oxygen developed on the anode surface rises through the electrolyte and escapes at the top of the tubular anode. Power supply to the cathode rods is preferably conducted through the cell bottom and the layer (4) of aluminum.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP90810926 | 1990-11-28 | ||
| PCT/EP1991/002219 WO1992009724A1 (en) | 1990-11-28 | 1991-11-20 | Electrode assemblies and multimonopolar cells for aluminium electrowinning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO931932L true NO931932L (en) | 1993-05-27 |
| NO931932D0 NO931932D0 (en) | 1993-05-27 |
Family
ID=26069894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO931932A NO931932D0 (en) | 1990-11-28 | 1993-05-27 | Electrode assemblies and multimonopoly cells for electrolytic extraction of aluminum |
Country Status (1)
| Country | Link |
|---|---|
| NO (1) | NO931932D0 (en) |
-
1993
- 1993-05-27 NO NO931932A patent/NO931932D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO931932D0 (en) | 1993-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU93039970A (en) | MULTIMONOPOLAR ELEMENT AND METHOD FOR PRODUCING ALUMINUM BY ELECTROLYSIS, ASSEMBLY OF ANODES IN THIS ELEMENT, INDEXPRESSIBLE ANODE AND METHOD OF CONVERTING AN ELECTROLYTIC ELEMENT TO A MULTIMELOMENTOL | |
| US5362366A (en) | Anode-cathode arrangement for aluminum production cells | |
| US3755099A (en) | Light metal production | |
| JPS6315354B2 (en) | ||
| NO138253B (en) | RECTANGULAR MOUNTING FRAME FOR ANODE OR CATHODE PLATE IN BIPOLAR ELECTRODE ELECTROLYSIS CELL OF FILTER PRESSURE TYPE | |
| NO138256B (en) | PROCEDURES FOR ELECTROLYZING A WATER SOLUTION CONTAINING SODIUM AND / OR POTASSIUM IONS AND ELECTROLYSIS CELLS FOR CARRYING OUT IT | |
| US4707239A (en) | Electrode assembly for molten metal production from molten electrolytes | |
| NO971191L (en) | Aluminum submersible assembly for aluminum production cells | |
| NO148932B (en) | ELECTROLYCLE CELL WITHOUT MEMBRANE, SPECIAL FOR THE PREPARATION OF ALKALICLORATES FROM ALKALICLORIDES | |
| US3893899A (en) | Electrolytic cell for metal production | |
| NO20013378L (en) | Aluminum electrowinning cells with oxygen-generating anodes | |
| NO931932L (en) | Electrode assemblies and multimonopoly cells for electrolytic extraction of aluminum | |
| NO833470L (en) | PROCEDURE FOR ELECTROLYTIC PREPARATION OF ALUMINUM BY ELECTROLYZE OF ALUMINUM CHLORIDE | |
| NO802805L (en) | ELECTROLYCLE CELL AND PROCEDURE FOR THE PREPARATION OF HALATES | |
| US1907818A (en) | Method of electrolysis and means therefor | |
| NO770690L (en) | ELECTROLYTE CELL OF THE MEMBRANE TYPE | |
| NO20021951L (en) | Drained cathode aluminum electro recovery cell with improved electrolyte circulation | |
| NO155845B (en) | PROCEDURE AND APPARATUS FOR GALVANIC ALUMINUM EXPOSURE. | |
| US3790465A (en) | Electrolytic cell including vertical hollow anodes with deflector panels diverging upwardly from each anode | |
| CA2123417A1 (en) | Cell for the Electrolysis of Alumina Preferably at Low Temperatures | |
| US3923614A (en) | Method of converting mercury cathode chlor-alkali electrolysis cells into diaphragm cells and cells produced thereby | |
| CN2045742U (en) | Aluminium electrolytic tank structure with inertia electrode | |
| US2370086A (en) | Electrolytic alkali halogen cells | |
| JPH0111722Y2 (en) | ||
| NO133094B (en) |