Massot, Laurent
and Bieber, Anne-Laure and Gibilaro, Mathieu and Cassayre, Laurent and Taxil, Pierre and Chamelot, Pierre
Silicon recovery from silicon-iron alloys by electrorefining in molten fluorides.
(2013)
Electrochimica Acta, 96. 97-102. ISSN 0013-4686
|
(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 610kB |
Official URL: http://dx.doi.org/10.1016/j.electacta.2013.02.065
Abstract
Electrorefining of a silicon-iron material (Si-4.7at%Fe) in molten NaF-KF at 850°C has been investigated in view of recovering pure Si, using electrochemical techniques, SEM-EDS and ICP-AES analyses. The selective electrochemical dissolution of Si was evidenced. Electrorefining runs led to a maximum Si recovery of 80% of the initial Si contained in the material, in the form of a dense deposit at the cathode, with very high current efficiencies. The Si purity has been examined and no Fe was detected by ICP-AES analysis: the recovered Si purity is thus assumed to be higher than 99.99%.
| Item Type: | Article |
|---|---|
| Additional Information: | Thanks to Elsevier editor. The definitive version is available at http://dx.doi.org/10.1016/j.electacta.2013.02.065 |
| HAL Id: | hal-00805734 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
| Laboratory name: | |
| Statistics: | download |
| Deposited On: | 28 Mar 2013 15:57 |
Repository Staff Only: item control page
