Distribution of representative impurities in metallurgical-grade silicon using CaO-SiO2-CaF2 and CaO-SiO2-CaCl2 slags

摘要：

　　This paper presents a detailed analysis of impurities distribution in metallurgical-grade silicon after CaO-SiO2-CaF2 and CaO-SiO2-CaCl2 slags refining.It demonstrates that the impurities removal efficiency generally increase in metallurgical-grade silicon after CaO-SiO2-CaCl2 slag refining compared to that after CaO-SiO2-CaF2 slag refining.It is also determined that metallic impurities like Fe, Al and Ca tend to co-deposit with Si to form Si-Ca based intermetallic compounds in the precipitate phase after slag refining.

关键词： Metallurgical-grade silicon Slag refining Impurities distribution

作者: Liuqing Huang Jianning Shen Xuetao Luo Huixian Lai Chenghao Lu Ming Fang Juan Chen Yanxu Lin Deqin Yu Jintang Li Wenhui Ma

作者单位: Department of Materials Science and Engineering,Xiamen University,Xiamen 361005,P R China Ningxia Electrical Power Ltd.Co,Yinchuan,750002,P R China National Engineering Laboratory for Vacuum Metallurgy,Faculty of Materials and Metallurgical Enginee

会议类型: 国际会议

会议名称: the 2013 2nd International Conference on Metallurgy Technology and Materials(ICMTM2013)(第二届冶金技术与材料国际会议)

会议地点: 香港

会议语种:英文

页码: 11-15

在线出版日期: 2013-06-25（万方平台首次上网日期，不代表论文的发表时间）