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过程工程学报 ›› 2017, Vol. 17 ›› Issue (6): 1170-1175.DOI: 10.12034/j.issn.1009-606X.217125

• 反应与分离 • 上一篇    下一篇

醛肟萃取剂萃取分离废锂离子电池中的铜

陈 炎， 程洁红*     

  1. 江苏理工学院化学与环境工程学院，江苏 常州 213001
  • 收稿日期:2017-02-06 修回日期:2017-04-11 出版日期:2017-12-20 发布日期:2017-12-05
  • 通讯作者: 程洁红 jiehong514@sina.com
  • 基金资助:
    废锂离子电池二次资源的回收深加工理论和应用研究

Copper Separation from Spent Lithium Ion Battery by Hydroxyoxime Extractants

Yan CHEN,  Jiehong CHENG*   

  1. School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou, Jiangsu 213001, China
  • Received:2017-02-06 Revised:2017-04-11 Online:2017-12-20 Published:2017-12-05

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摘要： 用N902和AD100两种萃取剂分别分离萃取废锂离子电池浸出液中的铜，考察了初始pH值、萃取剂浓度、相比(O/A)和萃取时间对铜回收率的影响. 结果表明，室温下，在初始pH 3.0、萃取剂浓度20%(?)及O/A=1:1、萃取时间240 s的条件下，N902对铜的一级萃取率达98.3%；在初始pH 3.0、萃取剂浓度25%(?)、O/A=1:1、萃取时间180 s的条件下，AD100对铜的一级萃取率达97.1%. 经硫酸溶液反萃后，2种萃取剂一次反萃率均高于95%，均能高效萃取分离铜，效果接近.

关键词: 溶剂萃取, N902, AD100, 铜回收

Abstract: To extract and separate copper from spent lithium ion battery leaching solution were carried out by using two domestically-made extractants of N902 and AD100. Effects of initial pH of aqueous phase, extractant concentration, phase ratio (O/A) and extraction time on copper extraction rate were investigated. The experiments were carried out at room temperature. The results showed that the first-stage copper extraction rate can achieved 98.3% for N902, under the optimal conditions of initial pH of 3.0, extractant concentration of 20%, phase ratio (O/A) 1:1 and extraction time 240 s. While the first-stage extraction rate can be 97.1% for AD100, under the conditions of initial pH 3.0, extractant concentration 25%, O/A 1:1 and extraction time 180 s. By using sulfuric acid as stripping agent, the first stage stripping rates of the copper for two extractants of N902 and AD100 can achieved both more than 95%, copper was recovered efficiently, and presented similar effect.

Key words: solvent extraction, N902, AD100, copper recovery