应用周期反向电流电解精炼铜的研究

Study on Copper Electrorefining by Current of Period Opposite Direction

提高铜电解电流密度的主要障碍是阳极的钝化 ,用周期反向电流能相对地防止阳极钝化 ,从而电流密度可提高到 40 0A/m2 .经过实验 ,确定采用反向电流的操作条件及电解诸因素对反向电流电解的影响 ,从而初步确立了反向电流电解精炼铜的生产工艺 .

It is the anode’s passivation that hinders copper electrolysis current density, and using the current of period change direction can efficiently prevent the anode passivation,the current density can reach 400 A/ m2. Through experiment, we preliminarilly decide the conditions of electrorefining.