铜离子浓度和温度对铜电解极化作用的影响  

EFFECT OF COPPER ION CONCENTRATION AND TEMPERATURE ONELECTROLYTIC COPPER POLARIZATION

作　　者：吕玉国[1] 李坚[1] 黄娟[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,昆明650093

出　　处：《矿冶》2010年第3期81-84,共4页Mining And Metallurgy

摘　　要：本文用线性扫描伏安法研究Cu2+浓度和温度对铜电极极化行为的影响。结果表明,在铜电解中,升高温度和提高Cu2+浓度对铜电极体系起到去极化作用,温度和Cu2+浓度升高,极化程度减小,而极限电流密度和峰电流密度增大;同时交换电流密度i0增大;平衡电位φ平略微上升。In this paper,using linear sweep voltammetry,effects of copper ion concentration and temperature on electrolytic copper polarization are studied.The results show that in the copper electrolysis,elevating the temperature and increasing the concentration of Cu2＋ can polarize the copper-electrolysis system.With the increasing of temperature and of Cu2＋ concentration,the degree of polarization is decreased,while the limited current density and peak current density increase.At the same time,exchange current density rising and equilibrium potential increased slightly.

关 键 词：铜电解精炼 极化 混合控制 

分 类 号：TF804.4[冶金工程—有色金属冶金] TF811