GB1403892A - Electrolytic metal producing process and apparatus - Google Patents
Electrolytic metal producing process and apparatusInfo
- Publication number
- GB1403892A GB1403892A GB3903372A GB3903372A GB1403892A GB 1403892 A GB1403892 A GB 1403892A GB 3903372 A GB3903372 A GB 3903372A GB 3903372 A GB3903372 A GB 3903372A GB 1403892 A GB1403892 A GB 1403892A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- metal
- chlorine
- chloride
- cathode
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- 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
- C25C3/18—Electrolytes
-
- 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
- C25C3/22—Collecting emitted gases
-
- 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
- C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of 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)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electrolytic Production Of Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
1403892 Producing metals in fused electrolyte cells ALUMINUM CO OF AMERICA 22 Aug 1972 [8 Sept 1971(2) 9 Sept 1971(3)] 39033/72 Heading C7B Metal is produced from the metal chloride, e.g. Al from AlCl 3 or Mg from MgCl 2 , in a fused electrolyte cell including anode 14, at least one intermediate bi-polar electrode 15 and cathode 16 in superimposed spaced relationship defining inter-electrode spaces 19, by electrolyzing a bath comprising the metal chloride dissolved in molten solvent of higher decomposition potential than the metal chloride, such as alkali and/or alkaline earth metal halide, producing chlorine on each anode surface (41) and metal on each cathode surface (40), and establishing and maintaining a bath flow through each inter-electrode space to sweep out the metal produced and prevent its accumulation on the cathode surfaces, e.g. by using the chlorine produced as lifting gas to pump bath from the inter-electrode space upwardly while allowing molten metal swept therefrom to settle to a sump 4 below the cathode. The molten metal may be removed through a vacuum tapping tube inserted through port 10 in the cell roof 8 down through a bath supply passage 30 extending from an upper bath reservoir 7 into the sump. The bath reservoir may be fed periodically or continuously with the metal chloride through port 11 in the roof, and port 12 is for chlorine outlet above a bath return (gas lift) passage 35. As shown passages 30, 35 communicate with each space 19, being formed by holes (31, 36) and slots (32, 37) in the marginal edges of the superimposed electrodes, whereby the bath continuously circulates through spaces 19 and reservoir 7 by the chlorine flow. Each anode surface, preferably spaced less than ¥ inch from opposed cathode surface, has spaced channels therein for receiving and directing chlorine flow into the gas lift passage but not communicating with the bath supply passage. The cell refractory walls 3 lining the outer steel shell 1 may be nitride-based, e.g. a nitride of Si, B or Al (with or without oxide of Si, B or Al), or of Ti, Cr, Hf, Ga or Zr; silicon oxynitride (Si 2 ON 2 ) or Si 3 N 4 - bonded fused SiO 2 is preferred. A preferred bath comprises a molten solvent of 50-75% NaCl and 25-50% LiCl containing 1¢-10% AlCl 3 or 1¢-20% MgCl 2 . A mixture of AlCl 3 and alkali metal and/ or alkaline earth metal halide may be selectively condensed from the effluent gas and recycled to the bath. The chlorine recovered may be reacted with alumina to form AlCl 3 feed. Chlorine effluent (52), Fig.5 (not shown), containing alkali and alkaline earth metal and aluminium chloride may be cooled (53) to condense or sublime the chloride for recycling to the cell.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17861171A | 1971-09-08 | 1971-09-08 | |
US00178650A US3822195A (en) | 1971-09-08 | 1971-09-08 | Metal production |
US17889871A | 1971-09-09 | 1971-09-09 | |
US17889571A | 1971-09-09 | 1971-09-09 | |
US17886471A | 1971-09-09 | 1971-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1403892A true GB1403892A (en) | 1975-08-28 |
Family
ID=27538992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3903372A Expired GB1403892A (en) | 1971-09-08 | 1972-08-22 | Electrolytic metal producing process and apparatus |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS5215044B2 (en) |
AT (1) | AT329891B (en) |
AU (1) | AU461962B2 (en) |
CH (1) | CH553254A (en) |
DD (1) | DD99396A5 (en) |
DE (1) | DE2244036C2 (en) |
FR (1) | FR2152814B1 (en) |
GB (1) | GB1403892A (en) |
HU (2) | HU168156B (en) |
IT (1) | IT965246B (en) |
NL (1) | NL156450B (en) |
NO (3) | NO152458C (en) |
PL (1) | PL76069B1 (en) |
RO (1) | RO71622A (en) |
YU (2) | YU226772A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2407228A1 (en) * | 2010-07-14 | 2012-01-18 | Alstom Technology Ltd | Gas cleaning unit and method for cleaning gas |
WO2023111641A1 (en) * | 2021-12-15 | 2023-06-22 | Arcelormittal | Compact apparatus for production of iron metal by electrolysis |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814515B2 (en) * | 1977-04-08 | 1983-03-19 | 日本軽金属株式会社 | Double electrode type aluminum electrolyzer |
US4110178A (en) * | 1977-05-17 | 1978-08-29 | Aluminum Company Of America | Flow control baffles for molten salt electrolysis |
FR2506789A1 (en) * | 1981-05-29 | 1982-12-03 | Pechiney Aluminium | ELECTROLYTIC PRODUCTION CELL OF A METAL FROM ITS HALIDE |
US4440610A (en) * | 1982-09-27 | 1984-04-03 | Aluminum Company Of America | Molten salt bath for electrolytic production of aluminum |
CN111321426B (en) * | 2020-02-21 | 2021-02-19 | 东北大学 | Device for preparing aluminum by molten salt electrolysis by taking gaseous aluminum chloride as raw material and aluminum chloride feeding method |
CN114030063B (en) * | 2021-11-03 | 2023-02-14 | 阿坝铝厂 | Pre-baked anode carbon block anti-oxidation structure |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE399693C (en) * | 1922-02-18 | 1924-07-29 | Edgar Arthur Ashcroft | Method and device for the electrolytic treatment of molten metal salts |
GB198024A (en) * | 1922-02-18 | 1923-05-18 | Edgar Arthur Ashcroft | Improved process and apparatus for electrolysing fused salts of metals and recovering the metals and acid radicles, and the application of the said process and apparatus to the recovery of valuable constituents from metal bearing ores, and materials |
DE401917C (en) * | 1923-01-11 | 1924-09-10 | Edgar Arthur Ashcroft | Device for the electrolytic treatment of molten metal salts |
US2393686A (en) * | 1942-02-06 | 1946-01-29 | Mathieson Alkali Works | Electrolytic production of magnesium |
US2393685A (en) * | 1942-12-14 | 1946-01-29 | Mathieson Alkali Works | Electrolytic cell |
US2830940A (en) * | 1952-03-28 | 1958-04-15 | Monsanto Chemicals | Production of metals |
-
1972
- 1972-08-22 GB GB3903372A patent/GB1403892A/en not_active Expired
- 1972-08-30 AU AU46116/72A patent/AU461962B2/en not_active Expired
- 1972-09-05 DE DE2244036A patent/DE2244036C2/en not_active Expired
- 1972-09-06 JP JP47089426A patent/JPS5215044B2/ja not_active Expired
- 1972-09-06 PL PL1972157622A patent/PL76069B1/en unknown
- 1972-09-07 HU HUAU287A patent/HU168156B/hu unknown
- 1972-09-07 IT IT52596/72A patent/IT965246B/en active
- 1972-09-07 NO NO3180/72A patent/NO152458C/en unknown
- 1972-09-07 YU YU02267/72A patent/YU226772A/en unknown
- 1972-09-07 HU HU72AU00000347A patent/HU170773B/en unknown
- 1972-09-08 CH CH1323472A patent/CH553254A/en not_active IP Right Cessation
- 1972-09-08 RO RO197272168A patent/RO71622A/en unknown
- 1972-09-08 DD DD165560A patent/DD99396A5/xx unknown
- 1972-09-08 NL NL7212287.A patent/NL156450B/en not_active IP Right Cessation
- 1972-09-08 AT AT774272A patent/AT329891B/en not_active IP Right Cessation
- 1972-09-08 FR FR7232005A patent/FR2152814B1/fr not_active Expired
-
1978
- 1978-04-13 NO NO781299A patent/NO141095C/en unknown
-
1979
- 1979-06-29 NO NO792190A patent/NO792190L/en unknown
- 1979-07-19 YU YU01770/79A patent/YU177079A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2407228A1 (en) * | 2010-07-14 | 2012-01-18 | Alstom Technology Ltd | Gas cleaning unit and method for cleaning gas |
WO2012007809A1 (en) * | 2010-07-14 | 2012-01-19 | Alstom Technology Ltd | Integrated heat exchanger |
US8979980B2 (en) | 2010-07-14 | 2015-03-17 | Alstom Technology Ltd | Gas cleaning unit and method for cleaning gas |
RU2555038C2 (en) * | 2010-07-14 | 2015-07-10 | Альстом Текнолоджи Лтд | Device and method for gas cleaning |
WO2023111641A1 (en) * | 2021-12-15 | 2023-06-22 | Arcelormittal | Compact apparatus for production of iron metal by electrolysis |
Also Published As
Publication number | Publication date |
---|---|
NO152458B (en) | 1985-06-24 |
JPS4836006A (en) | 1973-05-28 |
NO792190L (en) | 1973-03-09 |
HU168156B (en) | 1976-03-28 |
DE2244036C2 (en) | 1986-04-03 |
NL156450B (en) | 1978-04-17 |
NO141095B (en) | 1979-10-01 |
YU226772A (en) | 1982-02-28 |
DE2244036A1 (en) | 1973-03-29 |
PL76069B1 (en) | 1975-02-28 |
JPS5215044B2 (en) | 1977-04-26 |
NL7212287A (en) | 1973-03-12 |
HU170773B (en) | 1977-09-28 |
ATA774272A (en) | 1975-08-15 |
FR2152814A1 (en) | 1973-04-27 |
NO141095C (en) | 1980-01-09 |
IT965246B (en) | 1974-01-31 |
NO781299L (en) | 1973-03-09 |
CH553254A (en) | 1974-08-30 |
AT329891B (en) | 1976-06-10 |
DD99396A5 (en) | 1973-08-05 |
RO71622A (en) | 1981-04-30 |
AU461962B2 (en) | 1975-06-12 |
AU4611672A (en) | 1974-03-07 |
NO152458C (en) | 1985-10-02 |
FR2152814B1 (en) | 1975-01-03 |
YU177079A (en) | 1982-06-30 |
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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 |