RU2008134292A - METHOD FOR PRODUCING ALUMINUM BY MELT ELECTROLYSIS - Google Patents
METHOD FOR PRODUCING ALUMINUM BY MELT ELECTROLYSIS Download PDFInfo
- Publication number
- RU2008134292A RU2008134292A RU2008134292/02A RU2008134292A RU2008134292A RU 2008134292 A RU2008134292 A RU 2008134292A RU 2008134292/02 A RU2008134292/02 A RU 2008134292/02A RU 2008134292 A RU2008134292 A RU 2008134292A RU 2008134292 A RU2008134292 A RU 2008134292A
- Authority
- RU
- Russia
- Prior art keywords
- electrolysis
- melt
- naf
- current density
- carried out
- Prior art date
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract 9
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims abstract 14
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract 7
- 235000013024 sodium fluoride Nutrition 0.000 claims abstract 7
- 239000011775 sodium fluoride Substances 0.000 claims abstract 7
- 238000000034 method Methods 0.000 claims abstract 6
- 239000011698 potassium fluoride Substances 0.000 claims abstract 5
- 239000000463 material Substances 0.000 claims abstract 4
- 239000000155 melt Substances 0.000 claims abstract 4
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims abstract 4
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims abstract 2
- 239000000654 additive Substances 0.000 claims abstract 2
- 229910045601 alloy Inorganic materials 0.000 claims abstract 2
- 239000000956 alloy Substances 0.000 claims abstract 2
- 229910052799 carbon Inorganic materials 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims abstract 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract 2
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract 2
- 150000004706 metal oxides Chemical class 0.000 claims abstract 2
- 150000002739 metals Chemical class 0.000 claims abstract 2
- 235000003270 potassium fluoride Nutrition 0.000 claims abstract 2
- 229910016569 AlF 3 Inorganic materials 0.000 claims 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
1. Способ получения алюминия электролизом расплава KF-AlF3 с добавками Аl2О3 при температуре 700÷900°С, отличающийся тем, что в расплав предварительно добавляют NaF, при этом поддерживают мольное отношение (КF+NаF)/АlF3 от 1,1 до 1,9 и электролиз ведут при анодной плотности тока не более 1,0 А/см2 и катодной плотности тока не более 0,9 А/см2. ! 2. Способ по п.1, отличающийся тем, что электролиз ведут в расплаве при следующем соотношении компонентов, мас.%: ! Фторид калия KF8,0÷52,0Фторид натрия NaF6,0÷40,0Фторид алюминия АlF3Остальное ! 3. Способ по п.1 или 2, отличающийся тем, что при электролизе в качестве анодов используют углеродсодержащие материалы или инертные, выбранные из металлов, металлических сплавов (в частности сплава Cu-Fe-Ni), оксидов металлов и керметов.1. A method of producing aluminum by electrolysis of a KF-AlF3 melt with Al2O3 additives at a temperature of 700 ÷ 900 ° C, characterized in that NaF is pre-added to the melt, while maintaining a molar ratio (KF + NaF) / AlF3 of 1.1 to 1, 9 and electrolysis is carried out at an anode current density of not more than 1.0 A / cm2 and a cathodic current density of not more than 0.9 A / cm2. ! 2. The method according to claim 1, characterized in that the electrolysis is carried out in the melt in the following ratio of components, wt.%:! Potassium fluoride KF8.0 ÷ 52.0 Sodium fluoride NaF6.0 ÷ 40.0 Aluminum fluoride AlF3 3. The method according to claim 1 or 2, characterized in that during electrolysis, carbon-containing materials or inert materials selected from metals, metal alloys (in particular Cu-Fe-Ni alloy), metal oxides and cermets are used as anodes.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008134292/02A RU2415973C2 (en) | 2008-08-20 | 2008-08-20 | Procedure for production of aluminium by electrolysis of melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008134292/02A RU2415973C2 (en) | 2008-08-20 | 2008-08-20 | Procedure for production of aluminium by electrolysis of melt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008134292A true RU2008134292A (en) | 2010-02-27 |
| RU2415973C2 RU2415973C2 (en) | 2011-04-10 |
Family
ID=42127568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008134292/02A RU2415973C2 (en) | 2008-08-20 | 2008-08-20 | Procedure for production of aluminium by electrolysis of melt |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2415973C2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015005817A1 (en) * | 2013-07-09 | 2015-01-15 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Electrolyte for producing aluminum by molten electrolysis |
| RU2603744C1 (en) * | 2015-05-22 | 2016-11-27 | Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской Академии наук | Method of electrolytic aluminising articles made of low-carbon steel |
| RU2651929C1 (en) * | 2017-04-05 | 2018-04-24 | Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской Академии наук | Method of electrolytic production of aluminum |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1483193A (en) * | 1974-11-29 | 1977-08-17 | Courtaulds Ltd | Process for the manufacture of carbon disulphide |
| US4133727A (en) * | 1977-05-17 | 1979-01-09 | Aluminum Company Of America | Method for extracting heat from a chamber containing a molten salt |
| US4265716A (en) * | 1979-06-14 | 1981-05-05 | The United States Of America As Represented By The United States Department Of Energy | Method of winning aluminum metal from aluminous ore |
| US4464234A (en) * | 1982-04-01 | 1984-08-07 | The United States Of America As Represented By The United States Department Of Energy | Production of aluminum metal by electrolysis of aluminum sulfide |
| ES2381927T3 (en) * | 2002-10-18 | 2012-06-01 | Rio Tinto Alcan International Limited | Aluminum electrolytic reduction cells with metal-based anodes. |
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2008
- 2008-08-20 RU RU2008134292/02A patent/RU2415973C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2415973C2 (en) | 2011-04-10 |
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|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20180821 |