GB954849A - Production of silicon - Google Patents
Production of siliconInfo
- Publication number
- GB954849A GB954849A GB2837761A GB2837761A GB954849A GB 954849 A GB954849 A GB 954849A GB 2837761 A GB2837761 A GB 2837761A GB 2837761 A GB2837761 A GB 2837761A GB 954849 A GB954849 A GB 954849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- silica
- base
- gas
- pict
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
Apparatus for casting silicon comprises a silica melting-vessel 1 containing a silica siphon tube 5 whose longer limb projects into a subjacent vertical tubular silica mould 6 which is closed at its base by, e.g. a Ta cap, and encased in an annular jacket 8 of heat-insulating material, e.g. quartz fibre, which tapers downwards at its outer surface. Electromagnetic heating employing work coil 4 is preferably used. The internal surface of mould 6 is preferably coated with carbon black. The whole apparatus is mounted in a gas-tight <PICT:0954849/C1/1> enclosure which may be flushed with inert gas, e.g. argon. The cast Si rod freezes in the mould from the base upwards and after withdrawal from the mould may be acid-etched with HNO3 + HF to remove carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2837761A GB954849A (en) | 1961-08-04 | 1961-08-04 | Production of silicon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2837761A GB954849A (en) | 1961-08-04 | 1961-08-04 | Production of silicon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB954849A true GB954849A (en) | 1964-04-08 |
Family
ID=10274694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2837761A Expired GB954849A (en) | 1961-08-04 | 1961-08-04 | Production of silicon |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB954849A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0007063A1 (en) * | 1978-07-11 | 1980-01-23 | COMPAGNIE GENERALE D'ELECTRICITE Société anonyme dite: | Process and device for the manufacture of polycrystalline silicon |
| US4312700A (en) * | 1979-06-26 | 1982-01-26 | Helictronic Forschungs- Und Entwicklungs- Gesellschaft Fur Solarzellen-Grundstoffe Mbh | Method for making silicon rods |
-
1961
- 1961-08-04 GB GB2837761A patent/GB954849A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0007063A1 (en) * | 1978-07-11 | 1980-01-23 | COMPAGNIE GENERALE D'ELECTRICITE Société anonyme dite: | Process and device for the manufacture of polycrystalline silicon |
| FR2430917A1 (en) * | 1978-07-11 | 1980-02-08 | Comp Generale Electricite | PROCESS AND DEVICE FOR PRODUCING POLYCRYSTALLINE SILICON |
| US4312700A (en) * | 1979-06-26 | 1982-01-26 | Helictronic Forschungs- Und Entwicklungs- Gesellschaft Fur Solarzellen-Grundstoffe Mbh | Method for making silicon rods |
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