SU51940A1 - Method for producing aluminum fluoride and cryolitized alumina from alunite and fluorspar - Google Patents
Method for producing aluminum fluoride and cryolitized alumina from alunite and fluorsparInfo
- Publication number
- SU51940A1 SU51940A1 SU??-2109A SU2109A SU51940A1 SU 51940 A1 SU51940 A1 SU 51940A1 SU 2109 A SU2109 A SU 2109A SU 51940 A1 SU51940 A1 SU 51940A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- alumina
- aluminum fluoride
- fluorspar
- cryolitized
- alunite
- Prior art date
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
Изобретение дает новый способ получени фтористого алюмини и глинозема из алунитов и низкосортного плавикового шпата.The invention provides a new method for producing aluminum fluoride and alumina from alunites and low grade fluorspar.
Способ заключаетс в следующем. Ялунит, обожженный при температуре 500-600°, выщелачиваетс водой а присутствии плавикового шпата; при этом получаетс в растворе фторсульфат алюмини по следующей реакции:The method is as follows. Yalunite, calcined at a temperature of 500-600 °, is leached with water in the presence of fluorspar; when this is obtained in solution aluminum fluorosulfate by the following reaction:
. K SOiflUSO,). 3-2Д120з + 2СаР2 -AloF4SO;+ K.SO,+ 2П1рз -Ь2Са50.. K SOIFUSUSO,). 3-2D1203 + 2CaP2 -AloF4SO; + K.SO., + 2P1pc -L2Ca50.
Полученный фторсульфат алюмини отдел етс от нерастворенного остатка и нейтрализуетс содой или аммиаком по реакции:Aluminum fluorosulfate obtained is separated from the undissolved residue and is neutralized by soda or ammonia by the reaction:
2.. 3ftUF4 -SO.+ SK.SO.+ eCNHjOH2 .. 3ftUF4 -SO. + SK.SO. + eCNHjOH
4Я1РзД12О, + 3(N H4),SO, + 4Я1RzD12O, + 3 (N H4), SO, +
+ 3K,S04+3H,6.+ 3K, S04 + 3H, 6.
Основной фтористый алюминий, содержащий 76,5% фтористого алюмини , может служить заменителем фтористого алюмини при электролизе глинозема дл корректировки ванн.Primary aluminum fluoride, containing 76.5% aluminum fluoride, can serve as a substitute for aluminum fluoride in the electrolysis of alumina to adjust baths.
Сплавлением основного фтористого алюмини с содой получаетс криолитизированныи глинозем по реакции:By fusing basic aluminum fluoride with soda, cryolitized alumina is obtained by the reaction:
3. 3fll2 Р4О + ЗМаоСОз 2Я1 F,Na,+ + 2Я120з + ЗСО2.3. 3fll2 Р4О + ЗМаОСОЗ 2Я1 F, Na, + + 2Я120з + ЗСО2.
Основной фтористый алюминий тем или иным способом, например, возгонкой при температуре выше 1000° может быть переработан на чистый фтористый алюминий и глинозем по реакции:The main aluminum fluoride in one way or another, for example, by sublimation at temperatures above 1000 ° C can be processed into pure aluminum fluoride and alumina by the reaction:
4. ЗА., FP 4fll РЗ + .4. FOR., FP 4fll РЗ +.
Сульфат же аммони -кали используетс в качестве удобрени или после регенерации аммиака известью дает сульфат кали .Ammonium potassium sulphate, on the other hand, is used as a fertilizer or, after regeneration of ammonia with lime, potassium sulphate is produced.
Оставшийс нерастворимый остаток (реакци 1) перерабатываетс на глинозем , например, по Байеру.The remaining insoluble residue (reaction 1) is processed to alumina, for example, according to Bayer.
Предмет изобретени .The subject matter of the invention.
1. Способ получени фтористого алюмини из алунита и фтористого кальци , отличающийс тем, что получен1. A method of producing aluminum fluoride from alunite and calcium fluoride, characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-2109A SU51940A1 (en) | 1936-11-20 | 1936-11-20 | Method for producing aluminum fluoride and cryolitized alumina from alunite and fluorspar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-2109A SU51940A1 (en) | 1936-11-20 | 1936-11-20 | Method for producing aluminum fluoride and cryolitized alumina from alunite and fluorspar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU51940A1 true SU51940A1 (en) | 1936-11-30 |
Family
ID=52101651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU??-2109A SU51940A1 (en) | 1936-11-20 | 1936-11-20 | Method for producing aluminum fluoride and cryolitized alumina from alunite and fluorspar |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU51940A1 (en) |
-
1936
- 1936-11-20 SU SU??-2109A patent/SU51940A1/en active
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