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<p>As part of the development of a new production process for solar grade Si, a method for Si recovery from liquid Si-Zn alloys was investigated. It was found that Si could be recovered using a Si rod. The removal fraction of impurity elements from metallurgical grade Si was more than 99&#xa0;pct for Al, Ti, and Fe, 97&#xa0;pct for B and Ca, and 86&#xa0;pct for P, owing to the solvent refining effect of the Si-Zn alloy.</p>

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Recovery of Si from Liquid Si-Zn Alloy Using Si Rod

  • 期刊论文

  • 发表日期：

    2025年9月17日

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  • Takashi Yoshida,
  • Yutaro Norikawa,
  • Toshiyuki Nohira

摘要

As part of the development of a new production process for solar grade Si, a method for Si recovery from liquid Si-Zn alloys was investigated. It was found that Si could be recovered using a Si rod. The removal fraction of impurity elements from metallurgical grade Si was more than 99 pct for Al, Ti, and Fe, 97 pct for B and Ca, and 86 pct for P, owing to the solvent refining effect of the Si-Zn alloy.