SU301991A1 - Method of decomposing aluminate solutions - Google Patents
Method of decomposing aluminate solutionsInfo
- Publication number
- SU301991A1 SU301991A1 SU6801277590A SU1277590A SU301991A1 SU 301991 A1 SU301991 A1 SU 301991A1 SU 6801277590 A SU6801277590 A SU 6801277590A SU 1277590 A SU1277590 A SU 1277590A SU 301991 A1 SU301991 A1 SU 301991A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- decomposing
- decomposition
- aluminate solutions
- aluminate
- solutions
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
- C01F7/141—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
Изобретение относитс к производству глинозема, который вл етс источником получени металлического алюмини .The invention relates to the production of alumina, which is a source for producing metallic aluminum.
Известен способ .разложени алюминат ных растворов путем введени в них активной затравки гидроокиси алюмини , полученной, например,, при самопроизволь ном разложении алюминатных растворов. Затравку готов т 8-1О суток. Степень разложени апюминатных растворов составл ет 56,1%,The known method of decomposing aluminate solutions by introducing into them an active seed of aluminum hydroxide, obtained, for example, by spontaneous decomposition of aluminate solutions. The seed was prepared 8-1O days. The decomposition rate of apuminate solutions is 56.1%,
С цепью интенсификации процесса и повьгшени степени разложени , предпагаатс гидроокись алюмини предваритепьно обрабатьгеать апюминатным раствором при постепенном снижении.температуры от 65 до .With a chain of process intensification and a higher degree of decomposition, it is assumed that aluminum hydroxide is pre-treated with an apyuminate solution with a gradual decrease in temperature from 65 to.
При этом возрастает скорость процесса в I, раза и степень разложени на 5-8% (до 61,7%).At the same time, the speed of the process increases in I, times and the degree of decomposition by 5-8% (up to 61.7%).
Пример, Провод т сравнительную декомпозицию алюминатных растворов состава л. 132 г/л NcJ2O p128 г/пExample, Comparative decomposition of aluminate solutions of composition l is carried out. 132 g / l NcJ2O p128 g / p
том, полученным известным способом, и активной затравкой, полученной предпа гаемым способом.the volume obtained in a known manner and the active seed obtained by the proposed method.
Процесс разложени провод т в течение 5О ч при равномерном снижении тем тературы с 65 до 43°С opt: затравочном отношении 1,0, и за 10, 22, 34 и 5О ч степень разложени растворас активной затравкой соответственно составл ет 5О,7; 53,2| 55,9 и 61,7%,The decomposition process is carried out for 5 hours with a uniform decrease in the temperature from 65 to 43 ° C opt: a seed ratio of 1.0, and for 10, 22, 34 and 5 oh hours, the degree of decomposition of the solution with the active seed is respectively 5 O, 7; 53.2 | 55.9 and 61.7%,
При тех же услови х степень разложени с известным затравочным, гидратом составл ет: 38,0( 12ч); 44,8(2Оч); 48,9(28 ч) и 56,1 (5О ч).Under the same conditions, the degree of decomposition with a known seed, hydrate is: 38.0 (12h); 44.8 (2Oh); 48.9 (28 h) and 56.1 (5O h).
Фосмупа изобретенйInventions
5five
Способ разложени алюминатных раст- воров путем введени в них активной затравки гидроокиси алюмини , о т л и чающийс тем, что, с цельринтенсификации процесса и повышени сте„ пени разложени , гидроокись алюмини предварительно обрабатывают алюминат- ным раствором при постепенном снижении температуры от 65 до 4О С.The method of decomposition of aluminate solutions by introducing into them an active seed of aluminum hydroxide, which is so that, with the aim of accelerating the process and increasing the degree of decomposition, aluminum hydroxide is pre-treated with aluminate solution with a gradual decrease in temperature from 65 to 4 ° WITH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU6801277590A SU301991A1 (en) | 1968-10-03 | 1968-10-03 | Method of decomposing aluminate solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU6801277590A SU301991A1 (en) | 1968-10-03 | 1968-10-03 | Method of decomposing aluminate solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
SU301991A1 true SU301991A1 (en) | 1979-01-05 |
Family
ID=20443607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU6801277590A SU301991A1 (en) | 1968-10-03 | 1968-10-03 | Method of decomposing aluminate solutions |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU301991A1 (en) |
-
1968
- 1968-10-03 SU SU6801277590A patent/SU301991A1/en active
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