Effect of sodium-based slag treatment on the distribution of impurities in metallurgical grade silicon | |
Fang, M. ; Lu, C.H. ; Lai, H.X. ; Huang, L.Q. ; Chen, J. ; Li, J.T. ; Ma, W.H. ; Wei, K.X. ; Sheng, Z.L. ; Shen, J.N. ; Luo, X.T. ; Lu CH(鲁春华) | |
2013 | |
关键词 | Aluminum Calcium Impurities Intermetallics Metal refining Silicon oxides Slags Sodium |
英文摘要 | Conference Name:4th International Conference on Manufacturing Science and Engineering, ICMSE 2013. Conference Address: Dalian, China. Time:March 30, 2013 - March 31, 2013.; Northeastern University, China; Harbin Institute of Technology; Jilin University; The distribution of impurities in metallurgical grade silicon before and after slag treatment was investigated for the purpose of upgrading metallurgical grade to solar grade silicon. It was found that metal impurities co-deposited with silicon and formed different intermetallics in the precipitated phase, and these intermetallics such as Si-Fe, Si-Ni, Si-Ti-V and Si-Ca-Al-Fe were substituted by Si-Fe-Ti-V after treatment of Na2CO3-SiO2 slag. Non-metallic impurities B and P were nearly homogeneous distribution in metallurgical grade silicon before and after slag treatment. Moreover, a particular analysis of the microstructure of slag has been carried out, it was determined that metal impurities Al and Ca could easily migrate from silicon to slag phase in the refining process. ? (2013) Trans Tech Publications, Switzerland. |
语种 | 英语 |
出处 | http://dx.doi.org/10.4028/www.scientific.net/AMR.690-693.949 |
出版者 | Trans Tech Publications Ltd |
内容类型 | 其他 |
源URL | [http://dspace.xmu.edu.cn/handle/2288/85882] |
专题 | 生命科学-会议论文 |
推荐引用方式 GB/T 7714 | Fang, M.,Lu, C.H.,Lai, H.X.,et al. Effect of sodium-based slag treatment on the distribution of impurities in metallurgical grade silicon. 2013-01-01. |
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