框式电解铜米冷压块生产阴极铜  

Production of cathode copper by anode frame electrolysis die compacted copper particles process

作　　者：张锋 王华[1,2,3] 王宇[1,2] 王恒[1,2] ZHANG Feng;WANG Hua;WANG Yu;WANG Heng(Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction,Ministry of Education,Kunming Univesity of Science and Technology,Kunming 650093,China;National Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry,Kunming Univesity of Science and Technology,Kunming 650093,China;State Key Laboratory Complex Nonferrous Metal Resources Clean Utilization,Faculty of Metallurgical and Energy Engineering,Kunming Univesity of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明理工大学冶金节能减排教育部工程研究中心,昆明650093 [2]昆明理工大学冶金化工节能环保技术国家地方联合工程研究中心,昆明650093 [3]昆明理工大学冶金与能源工程学院,省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093

出　　处：《矿冶》2021年第4期54-60,94,共8页Mining And Metallurgy

基　　金：国家自然科学基金资助项目(51574135)。

摘　　要：铜米直接电解工艺是一种高铜回收率、高电流效率的废铜线材回收技术。针对直接电解铜米工艺的优缺点,提出并开展了使用阳极框(钛篮)电解铜米冷压块生产阴极铜的试验。结果表明,电解液温度升高时,电流效率升高但阴极铜质量下降;提高电解液循环速度时,较多铜粉颗粒被带至阴极表面,造成阴极铜质量下降;增加阴极电流密度,阳极产生大量铜粉颗粒并在框内聚集,对阴极铜质量产生一定的负面影响。在温度50℃、电解液循环速度14 L/h、阴极电流密度200 A/m^(2)的条件下直接电解48 h,可以得到表面致密的阴极铜产品,阴极电路效率为93.15%,阴极铜沉积速率为1.39 g/h。The direct electrolytic recovery of copper from copper particles is a recovery method of high copper recovery rate and high current efficiency.According to the merits and demerits of the direct electrolysis process of copper particles,the experiment of producing cathode copper by anode frame(titanium basket)electrolysis die-compacted copper particles process was proposed and carried out.The results show that increasing the electrolyte temperature could accelerate the cathodic current efficiency and decrease cathode copper quality.Adjusting the electrolyte circulation speed at higher circulation speeds,larger number copper powder particles were brought to the cathode surface,causing the quality of the cathode copper to decrease.Increase cathode current densities have a negative effect on the quality of cathode copper because the copper powder particles were large produced and gather in the anode frame.Under the conditions of electrolyte temperature 50℃,electrolyte circulation speed 14 L/h,cathode current density 200 A/m^(2),electrolysis for 48 h can obtain cathode copper plate with dense surface.The cathode current circuit efficiency was 93.15%,and the cathode copper deposition rate was 1.39 g/h.

关 键 词：铜米 冷压 电解 

分 类 号：TF811[冶金工程—有色金属冶金]