Extraction and separation of cobalt(II), copper(II) and manganese(II) by Cyanex272, PC-88A and their mixtures

详细信息	查看全文 | 推荐本文 |

• 作者：Fuchun Wang^a ; ^b ; Fanghui He^c ; Junmei Zhao^a ; ^{jmzhao@home.ipe.ac.cn} ; Na Sui^a ; ^b ; Lin Xu^a ; ^b ; Huizhou Liu^a ; ^{hzliu@home.ipe.ac.cn}
• 关键词：Synergistic extraction ; Organophosphorus acids ; Cobalt(II) ; Copper(II) ; Manganese(II)
• 刊名：Separation and Purification Technology
• 出版年：2012
• 期刊代码：78_13835866
• 类别：ce
• 出版时间：1 June, 2012
• 卷：93
• 期：Complete
• 页码：8-14
• 文件大小：537 K

摘要

Co, Mn and Cu usually coexist in the leachate of waste lithium ion batteries (LIBs). Extraction and separation of Co²⁺, Cu²⁺ and Mn²⁺ from sodium sulfate media by bis(2,4,4-trimethylpentyl) phosphinic acid, 2-ethylhexyl phosphinic acid mono-2-ethylhexyl ester and their mixtures in n-heptane have been investigated in detail. Synergistic enhancement coefficients, extraction reactions, infrared spectra, stripping properties and extraction selectivity were examined. A feasible separation process for recovery and separation of Mn, Cu and Co by the synergistic system was proposed and the mixed extractants could be used for reclaiming Mn, Cu and Co from the leachate of waste LIBs.