Laurent Massot, Anne-Laure Bieber
Electrorefining of a silicon-iron material (Si–4.7 at% Fe) in molten NaF-KF at 850 °C was investigated in view of recovering pure Si, using electrochemical techniques. The study focused on the separation and current efficiencies of silicon from iron impurities within a commercial silicon-iron alloy, establishing a comparative analysis against the electrochemical behavior of various metals identified as common pollutants in silicon production. Linear sweep voltammetry was performed to assess oxidation potentials and the resultant voltammograms indicated the feasibility of silicon and iron separation. Characterization of the anode microstructure revealed a matrix composed of silicon with intermetallic FeSi2, confirming the expected phases from the Si–Fe phase diagram. Results demonstrated that efficient recovery of silicon is plausible using the outlined electrorefining methods, thereby highlighting the potential for refining silicon materials containing iron through optimized electrochemical processes.
@article{f861a8ec-d241-48dc-9bab-93beed015bb2,
title={Silicon recovery from silicon iron alloy},
author={Laurent Massot and Anne-Laure Bieber},
year={2026},
language={en}
}TY - JOUR TI - Silicon recovery from silicon iron alloy AU - Laurent Massot AU - Anne-Laure Bieber PY - 2026 LA - en ER -
Unknown, Unknown
This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu
Unknown, Unknown
This study focuses on the fundamental characteristics of solid iron, which is predominantly composed of iron atoms and provides a basis for understand
Ir. Méshac KIME ILUNGA
Ce document traite des procédés métallurgiques spéciaux, en mettant particulièrement l'accent sur l'extraction liquide-liquide, un processus mis au po
Copper solvent extraction units at large hydrometallurgical plants face constraints in metal recovery, phase disengagement, and reagent consumption, d
Non spécifié
L'hydrométallurgie du cuivre, principalement axée sur les minerais oxydés facilement solubles, s'applique également aux minerais sulfurés ou mixtes ap