铜的电精炼:氯离子对阳极反应动力学的影响

R Galecio , J Guitton
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引用次数: 0

摘要

研究了铜在电解精炼工业中不同浓度和温度的酸性硫酸溶液中的阳极溶解。采用阳极、阴极伏安法和恒电位法研究了氯离子对这一现象的影响。结果表明,在研究的氯离子浓度和张力范围内,氯离子的存在并没有从根本上改变铜的溶解机理,但在阳极表面形成氯化亚铜层,导致伏安电流密度普遍降低。这一现象提示了铜通过吸附相氧化的机理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electro-affinage du cuivre: Influence des ions chlorure sur la cinetique de la reaction anodique

The anodic dissolution of copper was studied in acid sulfate solution with concentrations and temperature as in the industry of electrolytic refining of copper. The effect of chloride ions in the phenomenon was studied, by using anodic and cathodic voltametry and potentiostatic methods. The results show that the mechanism of copper dissolution is not radically altered by the presence of chloride ions in the range of chloride concentrations and tension studied, but a cuprous chloride layer formed at the anode surface is confirmed causing a general decrease of anodic current density in voltametry. The observed phenomenon suggests a mechanism of copper oxidation via adsorbed phase.

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