Solvent extraction and separation of heavy rare earths from chloride media using nonsymmetric (2,3-dimethylbutyl)(2,4,4′-trimethylpentyl)phosphinic acid

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• 作者：Junlian Wang^a ; ^{wangjunlian306@163.com} ; Meiying Xie^a ; Huajun Wang^a ; Shengming Xu^b
• 关键词：(2 ; 3-Dimethylbutyl)(2 ; 4 ; 4&prime ; -trimethylpentyl)phosphinic acid ; Solvent extraction ; Separation ; Heavy rare earths
• 刊名：Hydrometallurgy
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：167
• 期：Complete
• 页码：39-47
• 全文大小：838 K
• 卷排序：167

文摘

The pKa of (2,3-dimethylbutyl)(2,4,4′-trimethylpentyl)phosphinic acid (INET-3) was 5.45. The extraction mechanism of INET-3 for heavy RE(III) was investigated. The extraction capacity and stripping acidity of INET-3 for heavy RE(III) were examined. The separation efficiency of INET-3 for heavy RE(III) were studied.