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过程工程学报 ›› 2018, Vol. 18 ›› Issue (4): 722-727.DOI: 10.12034/j.issn.1009-606X.217336

• 反应与分离 • 上一篇    下一篇

酸性溶液中阴阳极协同氧化强化铜的溶出

王云婷1,2, 薛玉冬2,3, 郑诗礼2*, 张春晖1, 金 伟2*   

  1. 1. 中国矿业大学(北京)化学与环境工程学院,北京 100083
    2. 中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室,绿色过程与工程重点实验室,北京 100190
    3. 中国科学院大学化学工程学院,北京 100049
  • 收稿日期:2017-09-12 修回日期:2017-12-22 出版日期:2018-08-22 发布日期:2018-08-15
  • 通讯作者: 金伟 wjin@ipe.ac.cn
  • 基金资助:
    国家自然科学基金青年项目;国家自然科学基金青年项目

Enhanced copper dissolution by integrating anodic oxidation and cathodic oxidation process in acidic solution

Yunting WANG1,2, Yudong XUE2,3, Shili ZHENG2*, Chunhui ZHANG1, Wei JIN2*   

  1. 1. School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China
    2. 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
    3. School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-09-12 Revised:2017-12-22 Online:2018-08-22 Published:2018-08-15

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 mA/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.

关键词: 铜溶解, 电化学, 协同作用, 羟基自由基, 酸性溶液

Abstract: A novel integrated direct and indirect electrochemical copper dissolution was developed. Indirect oxidation process on the cathode is attributed to the H2O2 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.

Key words: copper dissolution, electrochemical, integration, hydroxyl radical, acid solution