SU555172A1 - Electrolyte to produce aluminum - Google Patents
Electrolyte to produce aluminumInfo
- Publication number
- SU555172A1 SU555172A1 SU2105456A SU2105456A SU555172A1 SU 555172 A1 SU555172 A1 SU 555172A1 SU 2105456 A SU2105456 A SU 2105456A SU 2105456 A SU2105456 A SU 2105456A SU 555172 A1 SU555172 A1 SU 555172A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electrolyte
- aluminum
- sodium fluoride
- oxyfluoride
- cryolite
- Prior art date
Links
Landscapes
- Electrolytic Production Of Metals (AREA)
Description
1one
Изобретение относитс к области металлургии , а именно к производству металлического алюмини путем электролиза криолито-глиноземных расплавов.The invention relates to the field of metallurgy, namely the production of aluminum metal by electrolysis of cryolite-alumina melts.
Известен электролит дл получени алк мини электролизом расплава, включающий криолит и фтористый натрий 1 .A known electrolyte for the production of alkali electrolysis of a melt, including cryolite and sodium fluoride 1.
Известный электролит обладает высокой стоимостью и характеризуетс низким выходом, по току.The known electrolyte has a high cost and is characterized by a low current output.
Целью изобретени вл етс снижение стоимости электролита и увеличение выхода по току.The aim of the invention is to reduce the cost of the electrolyte and increase the current efficiency.
Эта цель достигаетс тем, что электролит , включающий криолит ( вес%) и фтории натри (2-2 О вес %), дополнительно содержит оксифторид алюмини (1-13 вес.%).This goal is achieved by the fact that the electrolyte, including cryolite (weight%) and sodium fluoride (2-2 O weight%), additionally contains aluminum oxyfluoride (1-13 weight%).
Были приготовлены две смеси солей, содержащие соответственно 17 О г и 134 г криолита, 5 г и 26 г фторида натри , 25 г и 40 г оксифоторида алюмини . Полученные электролиты представл ли собой при температуре 960 С однородные, прозрачные и жидкотекучие расплавы. Температура плав- Two mixtures of salts were prepared, containing respectively 17 O g and 134 g cryolite, 5 g and 26 g sodium fluoride, 25 g and 40 g aluminum oxyfluoride. The electrolytes obtained were homogeneous, transparent and flowable melts at 960 ° C. Water temperature
лени первого электролита составила 937°С, второго-9150С. Электролиз был проведен при тепературе 960° +5ОС и плотности тока на катоде 1 а/см . В результате электролиза получен металл с выходом по току соответственно 83 % и 80% дл первого и второго электролитов. Дл известного электролита выход по току составил в тех же услови х 7 5 %.The laziness of the first electrolyte was 937 ° С, the second was 9150С. The electrolysis was carried out at a temperature of 960 ° + 5 ° C and a current density at the cathode of 1 A / cm. As a result of electrolysis, a metal was obtained with a current efficiency of 83% and 80%, respectively, for the first and second electrolytes. For a known electrolyte, the current efficiency was, under the same conditions, 7–5%.
Экономическа эффективность применени изобретени состоит в том, что на один современный электролизер большой мощности расходуетс 12,7 т криолита, 1,9 т оксифторида алюмини и 0,4 фторида натри . В расчете на алюминиевый завод, имеющий 1000 электролизеров, общий экономический эффект может составить около 0,25 млн. руб.The economic efficiency of the application of the invention lies in the fact that 12.7 tons of cryolite, 1.9 tons of aluminum oxyfluoride and 0.4 sodium fluoride are spent on one modern high-capacity electrolyzer. Based on an aluminum plant with 1000 electrolyzers, the overall economic effect may be about 0.25 million rubles.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2105456A SU555172A1 (en) | 1975-02-12 | 1975-02-12 | Electrolyte to produce aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2105456A SU555172A1 (en) | 1975-02-12 | 1975-02-12 | Electrolyte to produce aluminum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU555172A1 true SU555172A1 (en) | 1977-04-25 |
Family
ID=20610207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2105456A SU555172A1 (en) | 1975-02-12 | 1975-02-12 | Electrolyte to produce aluminum |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU555172A1 (en) |
-
1975
- 1975-02-12 SU SU2105456A patent/SU555172A1/en active
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