醛肟萃取剂萃取分离废锂离子电池中的铜

发布时间：2019-03-03 11:53

【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p H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p H 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p H 3.0、萃取剂浓度25%(?)及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.
[Abstract]:Two extractants, N902 and AD100, were used to separate and extract copper from the leaching solution of waste lithium ion battery. The effects of initial pH value, extractant concentration, specific ratio (Oa) and extraction time on the recovery of copper were investigated. The results showed that at room temperature, at initial pH 3.0, the extractant concentration was 20% (?) When the extraction time was 240 s, the first-order extraction rate of copper by N902 reached 98.3%, and at initial pH 3.0, the concentration of extractant was 25% (?) When the extraction time was 180s, the first-order extraction rate of copper by AD100 was up to 97.1%. After stripping with sulfuric acid solution, the primary stripping rates of the two extractants are all higher than 95%, and both of them can efficiently extract and separate copper. The results are close to those of the two extractants.
【作者单位】： 江苏理工学院化学与环境工程学院;
【基金】：江苏省高校自然科学研究重大项目(编号:15KJA610001)
【分类号】：O658.2;TF811;X705
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本文编号：2433670