Slag refining,as an important option for boron removal to produce solar grade silicon (SOG-Si) from metallurgical grade silicon (MG-Si),has attracted increasing attention.In this paper,Na2CO3-SiO2 systems were chosen as the sodium-based refining slag materials for boron removal from molten silicon.Furthermore,the effect of Al2O3 addition for boron removal was studied in detail,which showed that an appropriate amount of Al2O3 can help retention of the basicity of the slags,hence improving the boron removal rate.
参考文献
| [1] | Morita K,Mikib T.Thermodynamics of solar-grade-silicon refining.Intermetallics,2003,11 (11/12):1111 |
| [2] | Pei B X,Zhang H B,Cao M J,et al.Argumentation on the macrosegregation of boron in vacuum melting pouring ingot of GH901 alloy.Special Steel Technology,2006,12(48):5 |
| [3] | Rousseau S,Benmansour M,Morvan D,et al.Purification of MG silicon by thermal plasma process coupled to DC bias of the liquid bath.Solar Energy Materials & Solar Cells,2007,91(20):1906 |
| [4] | Alemany C,Trassy C,Pateyron B,et al.Refining of metallurgical-grade silicon by inductive plasma.Solar Energy Materials & Solar Cells,2002,72(1/4):41 |
| [5] | Delannoy Y,Alemany C,Li K I,et al.Plasma-refining process to provide solar-grade silicon.Solar Energy Materials & Solar Cells,2002,72(1/4):69 |
| [6] | Nakamura N,Baba H,Sakaguchi Y,et al.Boron removal in molten silicon by a steam-added plasma melting method.Mater Trans,2004,45(3):858 |
| [7] | Wu Jijun,Ma Wenhui,Yang Bin,et al.Boron removal from metallurgical grade silicon by oxidizing refining.Trans Nonferrous Met Soc,China,2009,19:463 |
| [8] | Wang Xinguo,Ding Weizhong,Shen Hong,et al.Oxidizing refining process of metallurgical grade silicon.The Chinese Journal of Nonferrous Metals,2002,12(4):827 |
| [9] | Teixeira L A V,Tokuda Y,Yoko T,et al.Behavior and state of boron in CaO-SiO2 slags during refining of solar grade silicon.ISIJ International,2009,49(6):777 |
| [10] | Teixeira L A V,Morita K.Removal of boron from molten silicon using CaO-SiO2 based slags.ISIJ International,2009,49(6):783 |
| [11] | Teixeira L A V,Morita K.Thermo-dynamics of boron removal from molten silicon with CaO-SiO2 slag.Current Advances in Materials and Processes,2007,20(1):83 |
| [12] | Noguchi R,Suzuki K,Tsukihashi F,et al.Thermodynamics of boron in a silicon melt.Metallurgical and Materials Transactions B,1994,25(6):903 |
| [13] | Hu Y Y,Lu D L,Lin T,et al.Study of the removal of boron from metallurgical grade silicon by oxidation slagging method.Adv Mater Research,2010,156/157:882 |
| [14] | Barin I.Thermochemical data of pure substances.3th ed.WileyVCH Verlag GmbH Pappelallec 3,D-69469 Wcinheim,Federal Republic of Germany,1995 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%