JPS5771813A - Production of silicon from sodium silicofluoride - Google Patents
Production of silicon from sodium silicofluorideInfo
- Publication number
- JPS5771813A JPS5771813A JP14690880A JP14690880A JPS5771813A JP S5771813 A JPS5771813 A JP S5771813A JP 14690880 A JP14690880 A JP 14690880A JP 14690880 A JP14690880 A JP 14690880A JP S5771813 A JPS5771813 A JP S5771813A
- Authority
- JP
- Japan
- Prior art keywords
- sodium
- silicon
- reaction
- mixture
- silicofluoride
- 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.)
- Granted
Links
- 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 title abstract 8
- 239000011734 sodium Substances 0.000 title abstract 7
- 229910052708 sodium Inorganic materials 0.000 title abstract 7
- 229910052710 silicon Inorganic materials 0.000 title abstract 6
- 239000010703 silicon Substances 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 3
- 239000011775 sodium fluoride Substances 0.000 abstract 3
- 235000013024 sodium fluoride Nutrition 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 abstract 1
- 229910052814 silicon oxide Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Silicon Compounds (AREA)
Abstract
PURPOSE: After reaction of sodium silicofluoride with metallic sodium is conducted to separate silicon, sodium fluoride is converted into sodium silicofluoride and circulated to produce high-purity silicon.
CONSTITUTION: The reaction between sodium silicofluoride and metallic sodium forms a mixture of silicon and sodium fluoride and the mixture is melted by heating in an intert gas. Then, the mixture is cooled down to room temperature to separate silicon from the solidified product. To remaining sodium fluoride, are added silicon oxide of higher than 90% purity and a mineral acid solution and they are heated to effect the reaction. Sodium silicofluoride formed is filtered, washed with water, dried, then used to react with metallic sodium. Thus, the production costs of silicon is greatly reduced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14690880A JPS5771813A (en) | 1980-10-22 | 1980-10-22 | Production of silicon from sodium silicofluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14690880A JPS5771813A (en) | 1980-10-22 | 1980-10-22 | Production of silicon from sodium silicofluoride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5771813A true JPS5771813A (en) | 1982-05-04 |
| JPS638043B2 JPS638043B2 (en) | 1988-02-19 |
Family
ID=15418283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14690880A Granted JPS5771813A (en) | 1980-10-22 | 1980-10-22 | Production of silicon from sodium silicofluoride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010083732A (en) * | 2008-10-02 | 2010-04-15 | Tohoku Univ | Method for manufacturing silicon crystal and method for manufacturing solar cell film |
| CN106517246A (en) * | 2016-11-21 | 2017-03-22 | 衡阳市锦轩化工有限公司 | Method for continuously producing sodium fluoride |
-
1980
- 1980-10-22 JP JP14690880A patent/JPS5771813A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010083732A (en) * | 2008-10-02 | 2010-04-15 | Tohoku Univ | Method for manufacturing silicon crystal and method for manufacturing solar cell film |
| CN106517246A (en) * | 2016-11-21 | 2017-03-22 | 衡阳市锦轩化工有限公司 | Method for continuously producing sodium fluoride |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS638043B2 (en) | 1988-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2025956B (en) | Process for producing terephthalic acid of high purity | |
| MY112732A (en) | Production of anionic surfactant granules by in situ neutralisation | |
| JPS56155100A (en) | Production of single crystal of ferrite | |
| JPS5542294A (en) | Method of producing high purity granular silicic acid | |
| JPS5771813A (en) | Production of silicon from sodium silicofluoride | |
| JPS5734026A (en) | Production of high-purity potassium fluorotantalate | |
| JPS56150026A (en) | Preparation of methyl chloride | |
| JPS5534115A (en) | Crystallization method | |
| JPS51138649A (en) | P rocess for preparing cyclohexene | |
| JPS5748949A (en) | Preparation of ethylenediaminetetraacetic acid alkali metal salt | |
| JPS5542260A (en) | Production of alpha-type hemihydrate gypsum from gypsum | |
| JPS5711815A (en) | Preparation of high purity silicon | |
| JPS5212146A (en) | Process for preparation of p- acetylaminobenzene-sufonylchloride | |
| JPS5728095A (en) | Production of ethynylmagnesium chloride | |
| JPS57175717A (en) | Preparation of high purity boron carbide powder | |
| JPS5236604A (en) | Preparation of methylchloride and its purification process | |
| JPS6246922A (en) | Production of high purity alumina | |
| JPS56115776A (en) | Preparation of 2-bromo-trifluoromethylpyridine | |
| JPS56161348A (en) | Preparation of delta-keto-acid | |
| JPS51128998A (en) | Process for preparing 4-hydroxy-1h- pyrazolo (3,4-d) pyrimidine | |
| JPS52153914A (en) | Preparation of butene-1,4-dicarboxylic acid diesters | |
| JPS54128551A (en) | Preparation of triphenylphosphine | |
| JPS5618679A (en) | Production of europium-activated stannic oxide phosphor | |
| JPS54157796A (en) | High purity mordenite type crystalline zeolite production | |
| JPS56150046A (en) | Production of 4-dimethylaminostilbene |