Method for producing high-purity metallic silicon and apparatus therefor
US5104633A · kind A · utility
2Cited by
3References
18Claims
0Family size
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Key dates
| Filing date | Dec 18, 1989 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Dec 18, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B33/021
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and apparatus for producing or manufacturing a high purity metallic silicon takes a process for generating silicon monoxide by causing reaction between a silicon dioxide containing material and molten state metallic silicon. The silicon monoxide thus generated is sucked for reduction by means of a reducing agent including a carbon containing material and a silicon containing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.