GB1042733A - Electrolytic recovery of alkali metals - Google Patents
Electrolytic recovery of alkali metalsInfo
- Publication number
- GB1042733A GB1042733A GB10861/63A GB1086163A GB1042733A GB 1042733 A GB1042733 A GB 1042733A GB 10861/63 A GB10861/63 A GB 10861/63A GB 1086163 A GB1086163 A GB 1086163A GB 1042733 A GB1042733 A GB 1042733A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- sodium
- electrolyte
- anode
- aluminium
- 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
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
-
- 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
- C25C3/02—Electrolytic production, recovery or refining of metals by electrolysis of melts of alkali or alkaline earth metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
- C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
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
<PICT:1042733/C6-C7/1> <PICT:1042733/C6-C7/2> <PICT:1042733/C6-C7/3> In recovering alkali metal by cathodic deposition from an electrolyte consisting of a complex compound containing an organoalkali metal-aluminium or -boron complex compound using a cathode resistant to both alkali metal and the electrolyte, the cathode is coated before electrolysis with cadmium or gold to improve its wettability by alkali metal. Typically the coating is applied to a thickness of 1 to 5 m on a substrate of copper. If other metals such as iron, alloy steel, aluminium or nickel are used, they are preferably copper plated if a cadmium coating is to be used. The process is described for recovering sodium from a sodium amalgam anode. The cathode may be of large surface area being formed by a series of connected spaced regularly perforated plates or grids arranged with the apertures in register or staggered. Alternatively the cathode may comprise an apertured plate 10a with pins (Figs. 8 to 10 not shown) or tubular projections 24 extending into them from a plate 10b. Instead of circular apertures, close packed rows of square, hexagonal or equilateral triangle openings may be provided. Collected sodium is removed in a direction parallel to the planes of the plates. For example with a horizontal amalgam anode 20 sodium deposited within the copper grid cathode structure 16 is tapped off by overflow 23. Electrolyte 18 is maintained at a pressure sufficient to prevent the sodium which is more dense falling downwardly out of the cathode, electrolyte passing through pipes extending through the cathode for return via the impeller pipe. The cell, cathode support and feed pipes are of insulating material. If desired the cathode may be provided with an insulating net for assisting retention of the sodium as in Specification 955,252. In another arrangement (Fig. 19 not shown) the electrolyte pressure is provided hydrostatically and electrolyte which passes through the grid portions of the cathode floats atop the sodium. Instead of a sodium amalgam pool the anode may comprise a vertical rotating disc fed with amalgam (Fig. 7 not shown). Impure sodium may be refined by supporting it as anode within one of the net-like electrode structures described above as cathodes. By using a cathode as described as the lower electrode in an electrolyte containing a sodium-aluminium alkoxy triethyl with an aluminium anode above it, sodium is formed at the cathode and alkoxy aluminium diethyl is formed at the anode.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEZ9335A DE1168651B (en) | 1962-03-30 | 1962-03-30 | Process for better wetting of the electrodes, in particular the cathodes used in the production of sodium by electrolysis of organic complex compounds and the formation of these electrodes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1042733A true GB1042733A (en) | 1966-09-14 |
Family
ID=7620862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10861/63A Expired GB1042733A (en) | 1962-03-30 | 1963-03-19 | Electrolytic recovery of alkali metals |
Country Status (5)
Country | Link |
---|---|
US (1) | US3409465A (en) |
BE (1) | BE630049A (en) |
CH (1) | CH459584A (en) |
DE (1) | DE1168651B (en) |
GB (1) | GB1042733A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1518570A1 (en) * | 1965-07-09 | 1969-10-09 | Basf Ag | Process for the electrochemical hydrodimerization of acrylonitrile |
US3657003A (en) * | 1970-02-02 | 1972-04-18 | Western Electric Co | Method of rendering a non-wettable surface wettable |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US961549A (en) * | 1909-01-26 | 1910-06-14 | Hooker Electro Chemical Company | Cathode. |
US1709523A (en) * | 1927-11-29 | 1929-04-16 | Grasselli Chemical Co | Anode |
US2097508A (en) * | 1934-04-07 | 1937-11-02 | Du Pont | Anode |
DE962939C (en) * | 1953-05-16 | 1957-05-02 | Demag Elektrometallurgie Gmbh | Soluble metal anode with at least one insoluble component |
BE548025A (en) * | 1956-05-23 | |||
US3129163A (en) * | 1960-12-23 | 1964-04-14 | Union Carbide Corp | Anode for electrolytic cell |
-
0
- BE BE630049D patent/BE630049A/xx unknown
-
1962
- 1962-03-30 DE DEZ9335A patent/DE1168651B/en active Pending
-
1963
- 1963-03-12 CH CH313263A patent/CH459584A/en unknown
- 1963-03-19 GB GB10861/63A patent/GB1042733A/en not_active Expired
- 1963-03-29 US US269125A patent/US3409465A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE1168651B (en) | 1964-04-23 |
CH459584A (en) | 1968-07-15 |
US3409465A (en) | 1968-11-05 |
BE630049A (en) |
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