研究了控制阴极电势电积法的反应机理、工艺流程及应用情况。
Reaction mechanism, processing and application of controlling cathodic potential electrowinning were studied.
影响该方法电解效率的主要因素有：氧化物阴极导电性、O2-扩散、阴极电势、阳极材料。
The main influencing factors on electrolysis efficiency of the method were: oxide cathode conductivity, O2- diffusion, cathode potential, anode material.
对采用间断电积法、连续电积法、控制阴极电势电积法净化铜电解液的电耗和经济效益作了论述。
It is an exposition of current consumption and economic results of disconnected electrowinning, of continuous electrowinning and of electrowinning of controlling cathodic potential.
槽电压的迅速上升主要是由于阴极超电势的增加而造成。
The rapid increasing cell voltage was mainly due to the increase of cathodic overvoltage.
空间电荷形成的虚阴极的位置和电势周期性地振荡。
The position and potential of the virtual cathode caused by space charge effects oscillate periodically.
结果表明： 不同的电镀基材在硫酸铑体系中对其阴极极化的影响不明显； 以镍为基材镀铑时， 具有开路电势低、电流效率低、白度高、结合力好等特点；
The results show that lower open circuit potential and current efficiency, higher whiteness, better coating binding force were found when the substrate was nickel;
结果表明： 不同的电镀基材在硫酸铑体系中对其阴极极化的影响不明显； 以镍为基材镀铑时， 具有开路电势低、电流效率低、白度高、结合力好等特点；
The results show that lower open circuit potential and current efficiency, higher whiteness, better coating binding force were found when the substrate was nickel;
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