Phase Relations, Activities and Precious Metal Distribution in the Cu-Fe-S-Sb System Saturated with Carbon at 1200℃

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As a fundamental study to develop a new process for eliminating detrimental antimony, recovering precious metals from the antimony-rich matte produced from the copper concentrate, and treating the occasionally generated speiss in nonferrous smelting processes, the phase relations in the Cu-Fe-S-Sb system saturated with carbon and the distribution of some minor elements between the phases in the miscibility gap, where three equilibrated phases of iron-rich alloy, copper-rich alloy and matte coexist, were investigated at 1200°C by using a quenching method.<BR>The experimental results were compared with the results for the Cu-Fe-S-As-C system and discussed on the basis of activity coefficient of antimony in the matte phase at different matte grades. By utilizing the obtained data, material balance calculations concerning to the treatment of antimony-rich matte produced in copper smelting by adding the pig-iron was elaborated and also laboratory scale experiments using industrial matte were carried to corroborate the calculations. By using the phase separation, the cleaning of complex matte, the recovery of valuable copper, silver and gold into the copper-rich alloy and matte phases as well as the elimination of iron and an acceptable amount of antimony into the iron-rich alloy phase for discarding as a harmless and smaller deposit might be feasible.

収録刊行物

  • Materials transactions  

    Materials transactions 49(6), 1311-1319, 2008-06-01 

    The Japan Institute of Metals and Materials

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各種コード

  • NII論文ID(NAID)
    10021147487
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    9519191
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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