摘要
提出了一种阳极直接电化学溶解与阴极间接溶出耦合溶出铜的新方法,阴极间接氧化是基于氧气还原反应和类芬顿反应产生H2O2和·OH.结果表明,在最佳电压0.25 V或电流密度6 m A/cm2下,电化学体系能产生大量活性物种,铜溶出率在直接阳极溶出的基础上大幅提升.
A novel integrated direct and indirect electrochemical copper dissolution was developed. Indirect oxidation process on the cathode is attributed to the H2 O2 and ·OH via oxygen reduction reaction and Fenton-like reaction, respectively. The results indicated that large amount of reactive species can be electro-generated to accelerate the dissolution of copper under the optimum conditions of preset potential 0.25 V or current density 6 mA/cm2, respectively.
作者
王云婷
薛玉冬
郑诗礼
张春晖
金伟
Yunting WANG;Yudong XUE;Shili ZHENG;Chunhui ZHANG;Wei JIN(School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China;National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China)
出处
《过程工程学报》
CAS
CSCD
北大核心
2018年第4期722-727,共6页
The Chinese Journal of Process Engineering
基金
国家自然科学基金资助项目(编号:51604253,51774261)
国家重点基础研究发展规划(973)基金资助项目(编号:2013CB632601)
关键词
铜溶解
电化学
协同作用
羟基自由基
酸性溶液
copper dissolution
electrochemical
integration
hydroxyl radical
acid solution
