Phosphorus Removal in Metallurgical-Grade Silicon via a Combined Approach of Si-Fe Solvent Refining and SiO<sub>2</sub>-TiO<sub>2</sub>-CaO-CaF<sub>2</sub> Slag Refining

Phosphorus Removal in Metallurgical-Grade Silicon via a Combined Approach of Si-Fe Solvent Refining and SiO<sub>2</sub>-TiO<sub>2</sub>-CaO-CaF<sub>2</sub> Slag Refining

As a critical impurity in the production of solar-grade silicon, the concentration of phosphorus (P) significantly affects photoelectric conversion efficiency. To address the challenge of P removal in solar-grade silicon production, this study proposes a combined process of Si-Fe solvent refining an...

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Bibliographic Details
Main Authors: Yi Zhong, Qing Zhao, Juncheng Li
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Metals
Subjects:
metallurgical-grade silicon
phosphorus removal
solvent refining
slag treatment
Si-Fe-Ti phase
Ca<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>
Online Access:https://www.mdpi.com/2075-4701/15/6/668
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