GB1392263A - Electrolysis of aluminium - Google Patents
Electrolysis of aluminiumInfo
- Publication number
- GB1392263A GB1392263A GB3373773A GB3373773A GB1392263A GB 1392263 A GB1392263 A GB 1392263A GB 3373773 A GB3373773 A GB 3373773A GB 3373773 A GB3373773 A GB 3373773A GB 1392263 A GB1392263 A GB 1392263A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- current
- alumina
- concentration
- 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
- 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
- C25C3/20—Automatic control or regulation of cells
Abstract
1392263 Determining alumina SWISS ALUMINIUM Ltd 16 July 1973 [18 July 1972] 33737/73 Heading G1N [Also in Divisions C7, G3] The concentration of alumina in a known type of aluminium electrolysis cell is controlled by passing the cell current through a sampling cycle as shown, the cell voltage and current being measured at 52,53 and 56,58 after a first and second current reduction respectively, the current then being returned to its normal value 59. From the measured values the concentration of alumina in the cell is calculated so that, at the next servicing of the cell, the supply of alumina to the electrolyte is varied to bring the alumina concentration back to a desired value. Under given conditions of cell voltage instability, the cell current is returned to its normal value at 60 or 61 without taking measurements. Details are given of percentage current reductions to be used and when the measurements are to be taken. The cell is described with reference to Fig.1 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1075072A CH560767A5 (en) | 1972-07-18 | 1972-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1392263A true GB1392263A (en) | 1975-04-30 |
Family
ID=4366435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3373773A Expired GB1392263A (en) | 1972-07-18 | 1973-07-16 | Electrolysis of aluminium |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3850768A (en) |
| JP (1) | JPS5244285B2 (en) |
| AT (1) | AT325316B (en) |
| AU (1) | AU470789B2 (en) |
| BE (1) | BE802248A (en) |
| BR (1) | BR7305366D0 (en) |
| CH (1) | CH560767A5 (en) |
| EG (1) | EG11447A (en) |
| GB (1) | GB1392263A (en) |
| IE (1) | IE37881B1 (en) |
| IT (1) | IT994965B (en) |
| NL (1) | NL7309862A (en) |
| NO (1) | NO133941C (en) |
| PH (1) | PH11080A (en) |
| TR (1) | TR17683A (en) |
| ZA (1) | ZA734766B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759841Y2 (en) * | 1977-05-30 | 1982-12-21 | ||
| JPS581681Y2 (en) * | 1977-09-07 | 1983-01-12 | 三洋電機株式会社 | Steam electric cooker |
| JPS594065U (en) * | 1982-06-25 | 1984-01-11 | 日本電気株式会社 | Slide rule for quality control chart |
| WO1993014248A1 (en) * | 1992-01-10 | 1993-07-22 | Comalco Aluminium Limited | Trickle alumina feeder |
| US5476574A (en) * | 1992-01-10 | 1995-12-19 | Comalco Aluminium Limited | Continuous alumina feeder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3380897A (en) * | 1964-11-16 | 1968-04-30 | Reynolds Metals Co | Method of determining ore concentration |
| US3583896A (en) * | 1968-03-25 | 1971-06-08 | Reynolds Metals Co | Detection and control of electrode upsets |
| US3712857A (en) * | 1968-05-20 | 1973-01-23 | Reynolds Metals Co | Method for controlling a reduction cell |
-
1972
- 1972-07-18 CH CH1075072A patent/CH560767A5/xx not_active IP Right Cessation
-
1973
- 1973-07-05 IE IE1137/73A patent/IE37881B1/en unknown
- 1973-07-10 US US00378233A patent/US3850768A/en not_active Expired - Lifetime
- 1973-07-11 AU AU57969/73A patent/AU470789B2/en not_active Expired
- 1973-07-12 BE BE133393A patent/BE802248A/en unknown
- 1973-07-13 ZA ZA734766A patent/ZA734766B/en unknown
- 1973-07-15 EG EG273/73A patent/EG11447A/en active
- 1973-07-16 NL NL7309862A patent/NL7309862A/xx not_active Application Discontinuation
- 1973-07-16 NO NO2891/73A patent/NO133941C/no unknown
- 1973-07-16 GB GB3373773A patent/GB1392263A/en not_active Expired
- 1973-07-17 TR TR17683A patent/TR17683A/en unknown
- 1973-07-17 AT AT631273A patent/AT325316B/en not_active IP Right Cessation
- 1973-07-17 PH PH14831A patent/PH11080A/en unknown
- 1973-07-17 IT IT26689/73A patent/IT994965B/en active
- 1973-07-17 BR BR5366/73A patent/BR7305366D0/en unknown
- 1973-07-18 JP JP48080429A patent/JPS5244285B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT325316B (en) | 1975-10-10 |
| NL7309862A (en) | 1974-01-22 |
| JPS5244285B2 (en) | 1977-11-07 |
| NO133941C (en) | 1976-07-21 |
| IE37881B1 (en) | 1977-11-09 |
| EG11447A (en) | 1977-09-30 |
| ZA734766B (en) | 1974-06-26 |
| NO133941B (en) | 1976-04-12 |
| DE2335030A1 (en) | 1974-01-31 |
| BR7305366D0 (en) | 1974-08-22 |
| PH11080A (en) | 1977-10-25 |
| AU470789B2 (en) | 1976-03-25 |
| IE37881L (en) | 1974-01-18 |
| CH560767A5 (en) | 1975-04-15 |
| US3850768A (en) | 1974-11-26 |
| IT994965B (en) | 1975-10-20 |
| BE802248A (en) | 1973-11-05 |
| AU5796973A (en) | 1975-01-16 |
| DE2335030B2 (en) | 1976-03-18 |
| JPS4944920A (en) | 1974-04-27 |
| TR17683A (en) | 1975-07-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |