A KCl–PbCl₂ (50.0–50.0 mol %) molten system was used as an electrolyte for secondary lead refining. As a result, pure lead and an anode product containing 52.81 mol % Sb, 33.66 mol % Bi, 7.54 mol % Pb, 3.74 mol % Ag, and 2.24 mol % As were obtained. Long-term electrochemical refining was found to be possible in the KCl–PbCl₂ electrolyte. Thermal analysis was applied to determine liquidus temperatures of the KCl–PbCl₂ (50.0–50.0 mol %) mixture with the PbO concentration ranging from 0 to 20 mol %. The temperature dependence of the PbO solubility in the KCl–PbCl₂ (50.0–50.0 mol %) melt was studied, and the thermodynamic parameters of the PbO solubility were calculated. Electrical conductivities and densities of oxy-chloride melts were measured.

中文翻译：

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PbO与KCl–PbCl ₂ –PbO系统之间的相互作用用于铅电化学精炼

使用KCl-PbCl ₂（50.0-50.0 mol％）熔融体系作为二次精炼的电解质。结果，获得了纯铅和包含52.81 mol％Sb，33.66 mol％Bi，7.54 mol％Pb，3.74 mol％Ag和2.24 mol％As的阳极产物。发现在KCl–PbCl ₂电解质中可以进行长期的电化学精制。通过热分析确定KCl–PbCl ₂（50.0–50.0 mol％）混合物的液相线温度，PbO浓度为0至20 mol％。PbO在KCl–PbCl _2中的溶解度与温度的关系研究了（50.0-50.0 mol％）熔体，并计算了PbO溶解度的热力学参数。测量了氯氧化物熔体的电导率和密度。