THE INFLUENCE OF PH VALUE ON DEPHOSPHORIZATION IN THE PROCESS OF REMOVING IMPURITY FROM MICRO SILICON POWDER
Received:May 21, 2011  
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DOI:10.3969/j.issn.1005-7854.2011.04.021
KeyWord:silica fume; dephosphorization ; thermodynamics ; pH value
           
AuthorInstitution
YANG Zhen-wei National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming ,China Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming ,China;
MA Wen-hui National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming ,China Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming ,China;
ZHOU Yang National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming ,China Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming ,China;
ZHU Wen-jie National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming ,China Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming ,China;
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Abstract:
      This paper is about the study of dephosphorization from micro silicon powder by leaching method and experiments are implemented to study the influence of pH value on dephosphorization. The results show that the lower the pH value is, the better the effect of phosphorus removal. This paper focuses on the behavior of phosphorus in removal process and furthermore, the mechanism research is carried out through thermodynamics analysis.
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