模拟铜电解精炼工业生产条件 ,在小型电解槽中探讨周期反向电流电解精炼铜的可行性。研究表明 :当电流密度为 40 0A·m 2 ,电流周期沉积电流 75秒 ,溶解电流 1 .5秒 ,添加剂用量 (g·dm 3) :KCl0 .1 0 5、骨胶 0 .0 1 0、硫脲 0 .0 1 0 ,有害杂质含量 (g·dm 3) :As5 + ≤ 3.0、Sb3+ ≤ 0 .1 6、Bi3+ ≤ 0 .1 0时 ,能获得表面光滑平整 ,纯度为99.998%的电解铜 Simulation of copper electrolytic refining industrial production conditions, in a small electrolytic cell cycle reverse current electrolytic copper refining feasibility. The results show that when the current density is 40 0 ​​A · m 2, the current is deposited for 75 seconds at a current density of 1.5 seconds, the amount of the additive (g · dm 3): KCl0.150, Urea 0. 0 1 0, the content of harmful impurities (g · dm 3): As5 + ≤ 3.0, Sb3 + ≤ 0 .1 6, Bi3 + ≤ 0. 10, the surface can be smooth and the purity is 99.998%