Method of purifying silicon utilizing cascading process
US8562932B2 · kind B2 · utility
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13References
21Claims
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Key dates
| Filing date | Mar 23, 2010 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Jun 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a method of purifying a material using a metallic solvent. The present invention includes a method of purifying silicon utilizing a cascade process. In a cascade process, as the silicon moves through the purification process, it contacts increasingly pure solvent metal that is moving through the process in an opposite direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.