A review of hydrometallurgy techniques for the removal of impurities from metallurgical-grade silicon

F **, S Li, W Ma, Z Chen, K Wei, J Wu - Hydrometallurgy, 2021 - Elsevier
Hydrometallurgy is considered a promising method to produce solar-grade silicon (SOG-Si)
from metallurgical-grade silicon (MG-Si) due to its advantages of low cost, simple operation …

High-performance porous silicon/nanosilver anodes from industrial low-grade silicon for lithium-ion batteries

F **, Z Zhang, X Wan, S Li, W Ma, X Chen… - … applied materials & …, 2020 - ACS Publications
Silicon (Si) has been considered as one of the most promising candidates for the next-
generation lithium-ion battery (LIB) anode materials owing to its huge theoretical specific …

A single-step crystallization process to remove potassium from sodium aluminate solution

J Liu, X Pan, M Chen, H Yu - Journal of Environmental Chemical …, 2024 - Elsevier
The high concentration of potassium in sodium aluminate solution seriously threatens the
seed precipitation process and reduces the quality of alumina products, but the separation of …

Recent progress in upgrading metallurgical-grade silicon to solar-grade silicon via pyrometallurgical routes

Y Lei, X Ma, Y Wang, Z Chen, Y Ren, W Ma… - International Journal of …, 2022 - Springer
Si-based photovoltaic solar power has been rapidly developed as a renewable and green
energy source. The widespread use of Si-based solar cells requires large amounts of solar …

An approach to employ titanium-bearing blast-furnace slag to prepare Ti and Al–Si alloys

Y Lei, L Sun, W Ma, X Ma, J Wu, S Li… - Journal of Alloys and …, 2018 - Elsevier
Ti-bearing blast-furnace slag is a metallurgical waste but a promising Ti resource. In this
study, Ti and Al–Si alloys can be prepared directly by separating a Ti–Si–Al alloy that was …

Segregation and removal of transition metal impurities during the directional solidification refining of silicon with Al-Si solvent

W Yu, Y Xue, J Mei, X Zhou, M **ong… - Journal of Alloys and …, 2019 - Elsevier
Segregation behavior of transition metal impurities (Fe and Ti) during the Al–Si solvent
refining of silicon was investigated. A directional solidification with induction heating was …

[HTML][HTML] Phosphorus separation from metallurgical-grade silicon by magnesium alloying and acid leaching

M Zhu, A Azarov, E Monakhov, K Tang… - Separation and …, 2020 - Elsevier
In this paper, the separation of phosphorus from metallurgical-grade silicon was investigated
based on an Mg alloying and HCl leaching approach. Experimental results show that P …

Separation of Al-Si-Fe-(Mn/Cr) melts for simultaneous recycle of Al-Si scraps and purification of silicon

P **an, Y Lei, W Ma, C Wang - Separation and Purification Technology, 2021 - Elsevier
Currently, the elimination of Fe from Al-Si alloy for recycling Al-Si scraps, and the purification
of Si using Al-Si solvent for recycling Si wafers in solar cells or production of new Si wafers …

Facilitated removal of metal from diamond wire saw silicon powder waste via surfactant-assisted HCl+ L-tartaric acid mixed leaching

B **ong, S Han, S Yang, K **e, K Wei, W Ma - Chemical Engineering …, 2025 - Elsevier
Diamond wire saw silicon powder (DWSSP) waste is an important strategic secondary
resource that determines the sustainable development of photovoltaic (PV) industry …

[HTML][HTML] P removal from Si by Si-Ca-Al alloying-leaching refining: Effect of Al and the CaAl2Si2 phase

M Zhu, S Yue, G Wu, K Tang, Y Xu, J Safarian - Separation and Purification …, 2021 - Elsevier
Phosphorus (P) is a critical impurity in metallurgical-grade Si that needed to be removed for
solar-grade Si production. The Si-Ca-Al-P system is one of the most crucial alloy systems for …