Hits:

Indexed by:会议论文

Date of Publication:2015-01-01

Included Journals:EI、Scopus

Volume:817

Page Number:379-384

Abstract:Purification of metallurgical-grade silicon (MG CSi) by a combination of Al-Si solidification refining and electromagnetic oscillating separation and acid leaching collection has been studied. The primary Si crystals and Al-Si alloy in hypereutectic Al-30%Si melt were separated during solidification under the pulse electromagnetic field (PEF). The results show that the Si content in Si-rich layer increases with increasing discharging frequency. The typical metallic impurities (Fe, Ti, and Ca) have removal fraction higher than 99.5%. The removal fractions of the impurities B and P which are more difficult to remove are over 90% and 85%, respectively. ? (2015) Trans Tech Publications, Switzerland.