COMPARISON OF NAPHTHENIC ACID, VERSATIC ACID AND D2EHPA FOR THE SEPARATION OF RARE EARTHS
COMPARISON OF NAPHTHENIC ACID, VERSATIC ACID AND D2EHPA FOR THE SEPARATION OF RARE EARTHS
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DOI：
10.1080/07366299108918044
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发表时间：
1991-02
影响因子：
2
通讯作者：
D. Zheng;N. Gray;G. Stevens
中科院分区：
文献类型：
--
作者：
D. Zheng;N. Gray;G. Stevens
摘要 使用氯化物系统中的溶剂萃取分离选定的稀土元素（包括 La、Dy、Yb 和 Y）的平衡数据。所检查的溶剂为环烷酸、叔碳酸和 D2EHPA，在 shellsol 2016 中，温度为 15°C。所提供的数据表明，钇具有与 D2EHPA 中的重稀土相似的分布系数，但其分布系数与羧酸体系（叔碳酸和环烷酸）中的轻稀土相似。这表明羧酸可用于从重稀土中分离钇，并与D2EHPA结合用于从含有所有稀土的材料中分离。
ABSTRACT Equilibrium data are presented for the separation of selected rare earths Including La, Dy, Yb and Y, using solvent extraction from a chloride system. The solvents examined are Naphthenlc acid, Versatic acid and D2EHPA In shellsol 2016 at 15°C. The data presented show that Yttrium has a similar distribution co-efflclent to the heavy rare earths In D2EHPA but the distribution co-efflclent is similar to the light rare earths In the carboxyllc acid systems (Versatic and Naphthenlc acid). This Indicates that carboxyllc acids could be used to separate yttrium from heavy rare earths and In combination with D2EHPA for the separation from materials containing all the rare earths.