萃取—旋流电积工艺从镓锗浸出液中生产阴极铜  

Production of Cathode Copper from Gallium and Germanium Leachate by Extraction-Cyclone Electrodeposition Process

作　　者：廖文讯 张伟 宫晓丹[1] 吴才贵 徐波 胡立 张俊峰 LIAO Wen-xun;ZHANG Wei;GONG Xiao-dan;WU Cai-gui;XU Bo;HU Li;ZHANG Jun-feng(Danxia Smelter,Shenzhen Zhongjin Lingnan Nonfemet Co.,Ltd.,Shaoguan 512325,Guangdong,China;Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]深圳市中金岭南有色金属股份有限公司丹霞冶炼厂,广东韶关512325 [2]江西理工大学材料冶金化学学部,江西赣州341000

出　　处：《有色金属（冶炼部分）》2022年第7期8-13,29,共7页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2021YFC2902802)。

摘　　要：介绍了某冶炼厂采用萃取-旋流电积工艺从镓锗浸出液中生产阴极铜的工业化应用情况。在铜的萃取生产过程中,通过优化反萃液酸度、萃取温度,同时监控浸出液中有害杂质含量和增设活性白土有机相净化装置,有效解决了铜萃取率低、分相慢和萃取有机相降解等技术问题;在铜的旋流电积生产中,采用钛基二氧化铅阳极替代钛基贵金属阳极、溶气泵加气浮澄清除油装置替换二级纤维改性材料除油装置,通过铜离子浓度电积终点准确控制、古尔胶助剂添加量、铜电积循环液温度优化,解决了阴极铜析出质量差、钛基贵金属阳极损耗大等生产难题,阴极铜的质量和阳极寿命均得到明显改善。Industrial application of production of cathode copper from gallium and germanium leachate by solvent extraction-cyclone electrodeposition process in a smelter was introduced.During copper solvent extraction and separation stage,the technical problems such as low copper extraction rate,slow phase separation and degradation of extraction organic phase were effectively solved by optimizing acidity of stripping solution and extraction temperature,monitoring the content of harmful impurities in leachate,and adding an active clay organic phase purification device.During cyclone electrodeposition production,the production problems such as poor quality of cathode copper and high loss of titanium base metal anode was solved through substitution of titanium-base lead dioxide anode to titanium-base precious metal anode,substitution of dissolved air pump gas float clarify oil removal device to two-stage fiber modified material oil removal device,accuracy control of copper ion concentration electric at the end of electrodeposition,and optimization gul glue addition and temperature of copper electrodeposition circulating solution.The quality of cathode copper and the life of anode are significantly improved.

关 键 词：萃取 旋流电积 镓锗浸出液 阴极铜 钛基二氧化铅阳极 

分 类 号：TF803.27[冶金工程—有色金属冶金] TF811