Activities in the Cu-Fe-S mattes at 1473K.

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  • Ｃｕ‐Ｆｅ‐Ｓ系マットの１４７３Ｋにおける活量
  • Cu Fe Sケイ マット ノ 1473K ニ オケル カツリョウ

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Abstract

The chemical compositions of iron-saturated mattes have been measured at 1473 K. The vapor pressures of sulfur have been determined experimentally over the Cu-Fe-S mattes by equilibrating them under the H2-H2S gas mixtures. Based on the present work and also literature data, a single equation has been established which provides excellent descriptions of sulfur partial pressures over the entire Cu-Fe-S matte compositions including the Fe-S and Cu-S binary systems as well. This simple function facilitates the ternary Gibbs-Duhem integrations for determining the Cu and Fe activities in mattes. The Fe and Cu activities in the matte-saturated alloys, which are required as initial conditions for the Gibbs-Duhem integrations, have been established by using quasichemical solution models. The Raoultian activities of FeS and CuS0.5 have been presented for the metal-saturated mattes as well as the pseudobinary FeS-CuS0.5 mattes.

Journal

  • Shigen-to-Sozai

    Shigen-to-Sozai 106 (3), 151-156, 1990

    The Mining and Materials Processing Institute of Japan

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