摘要
综述了镍基电池回收再生的方法,并分析了目前镍基电池常用的火法、湿法回收以及再生技术的利弊,提出了一种锌镍电池回收再生思路,并对该思路中负极回收方法进行了探究.结果表明,该锌镍电池回收再生思路具备一定可行性,且该思路下负极回收效果良好;采用硝酸浸出可使废阴极中Zn和Cu的浸出率分别达到99.94%和99.99%;采用锌粉置换和萃取法均可使浸出液净化过程中杂质铜的去除率达99%以上.
The recovery and regeneration methods of nickel-based batteries were summarized,and the advantages and disadvantages of pyrogenic,wet recovery and regeneration technologies commonly used in nickel-based batteries at present were analyzed.A recovery and regeneration idea of zinc-nickel batteries was proposed,and the negative electrode recovery method in this idea was explored.The results show that the idea of recovering and regenerating zinc-nickel battery is feasible,and the negative electrode recovery effect is good under this idea.The leaching rate of Zn and Cu in waste cathode can reach 99.94%and 99.99%respectively by nitric acid leaching.The removal rate of impurity copper in leaching solution purification process can reach more than 99%by zinc powder replacement and extraction.
作者
蔡云婷
俞小花
史春阳
CAI Yunting;YU Xiaohua;SHI Chunyang(Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)
出处
《有色金属科学与工程》
CAS
2019年第6期8-12,共5页
Nonferrous Metals Science and Engineering
基金
国家自然科学基金面上资助项目(51774160)
关键词
镍基电池
锌镍电池
回收再生
湿法
nickel-based batteries
Zn-Ni batteries
recovery and regeneration
hydrometallurgy
