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Distribution equilibria of Pb and Cu between CaO-SiO2-Al2O3 melts and liquid copper

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Abstract

The distribution equilibria of lead and copper between CaO-SiO2-Al2O3 melts and liquid copper were measured at 1623 K under a controlled H2-CO2 atmosphere. The distribution ratios were plotted against the oxygen partial pressure, and reasonable oxide forms dissolved in the melts were estimated from the slopes of the plots. The activity coefficients of lead oxide (PbO) and cuprous oxide (CuO0.5) increased with increasing slag basicity, defined by X CaO/X SiO2. The temperature dependence of the activity coefficients of lead oxide and cuprous oxide was also measured.

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Author notes

  1. Kenji Matsuzaki (Research Associate)

    Present address: the Department of Materials Science and Engineering, Waseda University, 169-8555, Tokyo, Japan

Authors and Affiliations

  1. Mitsui Mining & Smelting, 362-0021, Saitama, Japan

    Kenji Matsuzaki (Research Associate)

  2. the Department of Materials Science and Engineering, Waseda University, 169-8555, Tokyo, Japan

    Takaaki Ishikawa (Graduate Student), Takayuki Tsukada (Graduate Student) & Kimihisa Ito (Professor)

Authors
  1. Kenji Matsuzaki
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  2. Takaaki Ishikawa
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  3. Takayuki Tsukada
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  4. Kimihisa Ito
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Matsuzaki, K., Ishikawa, T., Tsukada, T. et al. Distribution equilibria of Pb and Cu between CaO-SiO2-Al2O3 melts and liquid copper. Metall Mater Trans B 31, 1261–1266 (2000). https://doi.org/10.1007/s11663-000-0013-3

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  • DOI: https://doi.org/10.1007/s11663-000-0013-3

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