酸化性ガスによる溶銅中不純物の酸化除去速度 Rate of Oxidation of Impurity in Liquid Copper by the Oxidizing Gas

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The kinetic behavior of oxidation of impurities (Zn, Sn and Pb) in liquid copper was investigated by blowing air onto the liquid copper surface. The oxidation of only Zn and Sn proceeded at the early stage of experiment. As Zn and Sn contents decreased, the oxygen content in copper increased and then the oxidation of Pb started after the oxygen content reached some critical value. The oxidation rates of impurities and the formation of Cu2O-based slag were promoted with increasing the blowing rate of air. Lower temperature favored the removal of Zn and Sn, but it was difficult to lower the contents of Zn, Sn, and specially, Pb down to less than 0.01 mass % only by blowing air. A kinetic reaction model was developed based on two film theory. The experimental results were confirmed to be interpreted by this model.

収録刊行物

  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 115(6), 455-459, 1999-06

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10002469750
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    4778735
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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