GB208712A - Improvements in or relating to methods of lining electrolytic cells for refining metals - Google Patents
Improvements in or relating to methods of lining electrolytic cells for refining metalsInfo
- Publication number
- GB208712A GB208712A GB31946/23A GB3194623A GB208712A GB 208712 A GB208712 A GB 208712A GB 31946/23 A GB31946/23 A GB 31946/23A GB 3194623 A GB3194623 A GB 3194623A GB 208712 A GB208712 A GB 208712A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- cell
- bath
- alumina
- mixture
- 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.)
- Expired
Links
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
-
- 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
- C25C3/24—Refining
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
208,712. Aluminum Co. of America, (Assignees of Hoopes, W., Edwards, J. D., and Horsfield, B. T.). Dec. 21, 1922, [Convention date]. Aluminium, obtaining. - A cell for refining metals by electrolysis has a refractory insulating lining formed by establishing in the cell a bath of fused material suitable for use as an electrolyte and containing a refractory material, such as alumina, desired as a constituent of the lining, and depositing from the mixture a crust containing such material on the walls of the cell. The cell comprises a metal shell divided into two water-jacketed sections 13, 14 insulated from one another, the former being connected to a source of current. The section 13 is provided with a heat-insulating layer 23 and a bowl-shaped layer 24 of carbon. A conductor 26 is secured to the shell and plates 25 welded to the shell ensure good contact with the carbon layer. A number of upper carbon electrodes 29, secured to a conductor 31, are provided. When the cell is to be used for refining aluminium, the bath may be composed of a mixture of alumina and fluorides of aluminium, barium, sodium, strontium, calcium and magnesium. A suitable mixture comprises 9 parts by weight of aluminium fluoride. 9 parts by weight of bariuin fluoride, 7 parts by weight of sodium fluoride, and sufficient alumina to saturate the mixture. The cooling action of the circulating water in the jackets causes a crystalline crust, which is chiefly alumina, to form on the sides of the shell. During the operation of the cell for refining, the bath mixture will be situated between an upper layer of pure aluminium and a lower layer of an alloy containing. aluminium and the thickness of the lining 32 will always be increasing, due to oxygen entering the bath through the oxidation of sodium formed at the cathode. The crust may be broken away when it becomes too thick thus forming a convenient method of removing excess alumina from the bath. Specifications 208,710 and 208,711 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US208712XA | 1922-12-21 | 1922-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB208712A true GB208712A (en) | 1925-03-12 |
Family
ID=21801043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31946/23A Expired GB208712A (en) | 1922-12-21 | 1923-12-20 | Improvements in or relating to methods of lining electrolytic cells for refining metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB208712A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003598A1 (en) * | 1990-08-20 | 1992-03-05 | Comalco Aluminium Limited | Ledge-free aluminium smelting cell |
| CN109108049A (en) * | 2018-08-01 | 2019-01-01 | 湘潭大学 | Containing sodium, the method for transformation of fluorochemical and system in a kind of aluminium electroloysis dangerous waste slag |
| CN113423668A (en) * | 2018-12-21 | 2021-09-21 | 康宁公司 | Bus bar design to allow high current input for low resistivity glass |
-
1923
- 1923-12-20 GB GB31946/23A patent/GB208712A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003598A1 (en) * | 1990-08-20 | 1992-03-05 | Comalco Aluminium Limited | Ledge-free aluminium smelting cell |
| CN109108049A (en) * | 2018-08-01 | 2019-01-01 | 湘潭大学 | Containing sodium, the method for transformation of fluorochemical and system in a kind of aluminium electroloysis dangerous waste slag |
| CN109108049B (en) * | 2018-08-01 | 2021-06-18 | 湘潭大学 | A kind of conversion method and system of sodium-containing and fluorine-containing compounds in aluminum electrolysis hazardous waste residue |
| CN113423668A (en) * | 2018-12-21 | 2021-09-21 | 康宁公司 | Bus bar design to allow high current input for low resistivity glass |
| CN113423668B (en) * | 2018-12-21 | 2023-01-31 | 康宁公司 | Bus bar design to allow high current input for low resistivity glass |
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