Abstract Cyclone electrowinning technology has obvious technical advantages in treating polymetallic mixed solutions, and it has been widely used to separate and purify cu, au, ag, Ni, co and other metals. Simulated leaching solution of copper‑cadmium residues was prepared as electrolyte, the extraction of copper by three-stage cyclone electrowinning in sequence were investigated in this study, and the optimum conditions of each stage were determined. In the first stage, the purity of cathode copper can reach over 99.996%, and the current efficiency can reach to 98.75% when the current density was 300A/m2 and the electrolyte circulation flow was 400 L/h. in the second stage, the purity of cathode copper can achieve the standard of the cathode copper(>99.99%)，and the current efficiency can reach to 98.93% when the conditions are determined as the current density of 400A/m2 and the circulation flow of 700 L/h. in the third stage, the cathode copper with over 99.9% purity can be obtained and the current efficiency can reach to 93.37% when the current density was 200A/m2 and the circulation flow was 500 L/h. the concentration of copper ions in the electrolyte can be reduced to below 0.1 g/L and the removal efficiency of copper can reach over 99% in the study. Compared to the traditional electrowinning process，the cyclone electrowinning shows the advantages of high metals selectivity，high current efficiency, high purity of electrolytic products and low environmental pollution, which has good economic and social environmental benefits

中文翻译：

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旋风电积技术从铜镉渣模拟浸出液中提取铜

摘要 旋风电积技术在处理多金属混合溶液方面具有明显的技术优势，已广泛应用于铜、金、银、镍、钴等金属的分离提纯。以铜镉渣模拟浸出液为电解液,研究了三级旋风电积依次提取铜的工艺,并确定了各阶段的最佳浸出条件。第一阶段阴极铜纯度可达99.996%以上，当电流密度为300A/m2，电解液循环流量为400L/h时，电流效率可达98.75%。第二阶段阴极铜纯度达到阴极铜标准(>99.99%)，电流效率可达98. 当条件确定为400A/m2的电流密度和700L/h的循环流量时为93%。第三阶段，当电流密度为200A/m2，循环流量为500L/h时，可获得纯度99.9%以上的阴极铜，电流效率可达93.37%。电解液中铜离子浓度可降至0.1g/L以下，铜去除率可达99%以上。与传统电解工艺相比，旋风电解具有金属选择性高、电流效率高、电解产品纯度高、环境污染小等优点，具有良好的经济和社会环境效益 当电流密度为200A/m2，循环流量为500 L/h时，可获得9%的纯度，电流效率可达93.37%。电解液中铜离子浓度可降至0.1g/L以下，铜去除率可达99%以上。与传统电解工艺相比，旋风电解具有金属选择性高、电流效率高、电解产品纯度高、环境污染小等优点，具有良好的经济和社会环境效益 当电流密度为200A/m2，循环流量为500 L/h时，可获得9%的纯度，电流效率可达93.37%。电解液中铜离子浓度可降至0.1g/L以下，铜去除率可达99%以上。与传统电解工艺相比，旋风电解具有金属选择性高、电流效率高、电解产品纯度高、环境污染小等优点，具有良好的经济和社会环境效益 1 g/L，研究中对铜的去除效率可达99%以上。与传统电解工艺相比，旋风电解具有金属选择性高、电流效率高、电解产品纯度高、环境污染小等优点，具有良好的经济和社会环境效益 1 g/L，研究中对铜的去除效率可达99%以上。与传统电解工艺相比，旋风电解具有金属选择性高、电流效率高、电解产品纯度高、环境污染小等优点，具有良好的经济和社会环境效益