Abstract
The distribution ratios of gold, silver and selenium between liquid copper and cuprous sulfide, Lx (X=Au, Ag or Se), have been measured at 1, 200°C and the results obtained are summarized as follows:1) LAu =171.5 (Au content in copper phase up to 1%)LAg=2.37 (Ag content in copper phase up to 7%)Lse=0.074 (Se content in copper phase up to 1.2%)These ratios are independent of the concentrations below the maximum experimental values indicated in brackets.2) The distribution ratio of gold, LAu is not affected by silver (Ag content in copper phase up to 4. 5%), and that for silver, LAg is uninfluenced by gold (Au content in copper phase up to 1%).3) The distribution ratios of siver and selenium, LAg and Lse in the Cu-Ag-Se-S system (Ag content up to 7%, Se content up to 0.15% in copper phase) are hardly changed by adding ways of silver and selenium, i. e. as the chemical compound Ag2Se or separately. Moreover, there are no significant differences between these ratios and LAg in the Cu-Ag-S system or Lse in the Cu-Se-S system. The affinity between silver and selenium, therefore, is thought to be weak.On the basis of these distribution ratios, some discussions were made on the behaviors of gold, silver and selenium in the blister making period of copper converting and in the blister making zone of the copper continuous smelting process.
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