电解精炼铜时阳极中的贵金属杂质大部分转入阳极泥,少量落入阴极沉积物。例如,当电流密度为258A/m~2时有1.58%的银和0.65%的金(占阳极中的含量)落入阴极铜。大多数研究者认为,贵金属转入阴极的主要原因是阳极泥颗粒的对流携带和电泳携带。同时又指出,转入阴极铜的总银量中约有25%是由 Most of the precious metal impurities in the anode during electrolytic refining are transferred to the anode slime and a small amount to the cathode deposit. For example, when the current density is 258 A / m 2, 1.58% of silver and 0.65% of gold (the content in the anode) fall into the cathode copper. Most researchers believe that the main reason for the transfer of precious metals into the cathode is convective and electrophoretic transport of anode slime particles. At the same time, it is pointed out that about 25% of the total silver transferred to the cathode copper is caused by it