GB1403893A - Process for producing aluminum by electrolysis - Google Patents
Process for producing aluminum by electrolysisInfo
- Publication number
- GB1403893A GB1403893A GB4234172A GB4234172A GB1403893A GB 1403893 A GB1403893 A GB 1403893A GB 4234172 A GB4234172 A GB 4234172A GB 4234172 A GB4234172 A GB 4234172A GB 1403893 A GB1403893 A GB 1403893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- electrolysis
- oxide
- oxygen
- per cent
- 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
- 229910052782 aluminium Inorganic materials 0.000 title abstract 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 5
- 238000005868 electrolysis reaction Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 4
- 229910052760 oxygen Inorganic materials 0.000 abstract 4
- 239000001301 oxygen Substances 0.000 abstract 4
- 239000004411 aluminium Substances 0.000 abstract 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical class [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
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
- C25C3/18—Electrolytes
Abstract
1403893 Aluminium production ALUMINUM CO OF AMERICA 12 Sept 1972 [26 Oct 1971] 42341/72 HeadingC7B In the production of aluminium by electrolysis of aluminium chloride in a fused solvent, the metal oxide content of the bath is controlled so that it does not exceed 0.25 wt per cent and is preferably less than 0.05 wt per cent oxygen. The oxygen concentration of aluminium chloride fed into the bath to replace that lost by electrolysis may be less than 0.25 wt per cent oxygen. Control of oxygen content may be by dissolving the oxide by adding a fluoride or by lowering the temperature then electrolyzing the dissolved oxide. The fluoride may be cryolyte, magnesium, aluminium, sodium, or calcium fluorides. The oxide may also be removed by lowering the cement density or by filtration.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19265371A | 1971-10-26 | 1971-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1403893A true GB1403893A (en) | 1975-08-28 |
Family
ID=22710521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4234172A Expired GB1403893A (en) | 1971-10-26 | 1972-09-12 | Process for producing aluminum by electrolysis |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US3725222A (en) |
| JP (1) | JPS5215043B2 (en) |
| AT (1) | AT327578B (en) |
| AU (1) | AU453929B2 (en) |
| BR (1) | BR7207305D0 (en) |
| CA (1) | CA981209A (en) |
| CH (1) | CH555410A (en) |
| CS (1) | CS202530B2 (en) |
| DD (1) | DD99610A5 (en) |
| DE (1) | DE2251262C2 (en) |
| FR (1) | FR2158238B1 (en) |
| GB (1) | GB1403893A (en) |
| IT (1) | IT966362B (en) |
| NL (1) | NL155891B (en) |
| PH (1) | PH9821A (en) |
| PL (1) | PL82400B1 (en) |
| RO (1) | RO60672A (en) |
| SE (1) | SE396776B (en) |
| YU (1) | YU249272A (en) |
| ZA (1) | ZA727061B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179345A (en) * | 1979-02-26 | 1979-12-18 | Aluminum Company Of America | Controlled wettability graphite electrodes for selective use in electrolysis cells |
| US4179346A (en) * | 1979-02-26 | 1979-12-18 | Aluminum Company Of America | Selective use of wettable and non-wettable graphite electrodes in electrolysis cells |
| US4397822A (en) * | 1982-03-17 | 1983-08-09 | Murtha Marlyn J | Process for the recovery of alumina from fly ash |
| FR2524495A1 (en) * | 1982-03-31 | 1983-10-07 | Pechiney Aluminium | PROCESS FOR THE CONTINUOUS OBTAINMENT OF ALUMINUM BY CARBOCHLORATION OF ALUMINA AND IGNITION ELECTROLYSIS OF THE OBTAINED CHLORIDE |
| US4493784A (en) * | 1984-01-30 | 1985-01-15 | Atlantic Richfield Company | Dehydration of aluminum chloride hexahydrate |
| US6497807B1 (en) | 1998-02-11 | 2002-12-24 | Northwest Aluminum Technologies | Electrolyte treatment for aluminum reduction |
| US6258247B1 (en) * | 1998-02-11 | 2001-07-10 | Northwest Aluminum Technology | Bath for electrolytic reduction of alumina and method therefor |
| US6066247A (en) * | 1998-04-23 | 2000-05-23 | Sharma; Ram A. | Method for producing aluminum metal from aluminum trichloride |
| US6436272B1 (en) | 1999-02-09 | 2002-08-20 | Northwest Aluminum Technologies | Low temperature aluminum reduction cell using hollow cathode |
| US6428675B1 (en) | 2000-07-13 | 2002-08-06 | Alcoa Inc. | Low temperature aluminum production |
| US9896775B2 (en) | 2012-01-04 | 2018-02-20 | Keki Hormusji Gharda | Process for manufacturing aluminum from bauxite or its residue |
| WO2015123502A1 (en) * | 2014-02-13 | 2015-08-20 | Phinix, LLC | Electrorefining of magnesium from scrap metal aluminum or magnesium alloys |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103472A (en) * | 1963-09-10 | Electrolytic production of aluminum | ||
| US1206874A (en) * | 1915-03-02 | 1916-12-05 | Gulf Refining Co | Utilization of aluminum-chlorid residues. |
| US1942522A (en) * | 1926-11-22 | 1934-01-09 | Weber Julius | Electrolytic extraction of pure aluminum |
| FR1124194A (en) * | 1955-03-30 | 1956-10-05 | Pechiney | Improvements to chlorofluorine baths used in igneous electrolysis |
| US2919234A (en) * | 1956-10-03 | 1959-12-29 | Timax Associates | Electrolytic production of aluminum |
| US3518172A (en) * | 1967-02-24 | 1970-06-30 | Dow Chemical Co | Process for the electrolysis of aluminum chloride |
-
1971
- 1971-10-26 US US00192653A patent/US3725222A/en not_active Expired - Lifetime
-
1972
- 1972-09-01 AU AU46232/72A patent/AU453929B2/en not_active Expired
- 1972-09-11 CA CA151,416A patent/CA981209A/en not_active Expired
- 1972-09-12 SE SE7211732A patent/SE396776B/en unknown
- 1972-09-12 GB GB4234172A patent/GB1403893A/en not_active Expired
- 1972-09-15 PH PH13909A patent/PH9821A/en unknown
- 1972-10-03 ZA ZA727061A patent/ZA727061B/en unknown
- 1972-10-04 YU YU02492/72A patent/YU249272A/en unknown
- 1972-10-11 CS CS726860A patent/CS202530B2/en unknown
- 1972-10-12 NL NL7213843.A patent/NL155891B/en not_active IP Right Cessation
- 1972-10-13 DE DE2251262A patent/DE2251262C2/en not_active Expired
- 1972-10-16 IT IT53404/72A patent/IT966362B/en active
- 1972-10-18 CH CH1521572A patent/CH555410A/en not_active IP Right Cessation
- 1972-10-19 PL PL1972158371A patent/PL82400B1/pl unknown
- 1972-10-19 DD DD166348A patent/DD99610A5/xx unknown
- 1972-10-19 JP JP72104090A patent/JPS5215043B2/ja not_active Expired
- 1972-10-19 AT AT894372A patent/AT327578B/en active
- 1972-10-19 BR BR7305/72A patent/BR7207305D0/en unknown
- 1972-10-19 FR FR7237157A patent/FR2158238B1/fr not_active Expired
- 1972-10-19 RO RO72565A patent/RO60672A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5215043B2 (en) | 1977-04-26 |
| PH9821A (en) | 1976-03-26 |
| CA981209A (en) | 1976-01-06 |
| CS202530B2 (en) | 1981-01-30 |
| YU249272A (en) | 1982-02-28 |
| US3725222A (en) | 1973-04-03 |
| AU453929B2 (en) | 1974-10-17 |
| AT327578B (en) | 1976-02-10 |
| SE396776B (en) | 1977-10-03 |
| ATA894372A (en) | 1975-04-15 |
| ZA727061B (en) | 1973-07-25 |
| JPS4850910A (en) | 1973-07-18 |
| DE2251262A1 (en) | 1973-05-03 |
| NL7213843A (en) | 1973-05-01 |
| RO60672A (en) | 1976-10-15 |
| DE2251262C2 (en) | 1983-10-20 |
| AU4623272A (en) | 1974-03-07 |
| FR2158238B1 (en) | 1975-01-03 |
| BR7207305D0 (en) | 1973-10-09 |
| DD99610A5 (en) | 1973-08-12 |
| FR2158238A1 (en) | 1973-06-15 |
| CH555410A (en) | 1974-10-31 |
| PL82400B1 (en) | 1975-10-31 |
| IT966362B (en) | 1974-02-11 |
| NL155891B (en) | 1978-02-15 |
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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 |