Separation of rare earth metals with a polymeric microcapsule membrane
Separation of rare earth metals with a polymeric microcapsule membrane
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DOI：
10.1016/s0011-9164(02)00320-x
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发表时间：
2002-09-10
期刊：
影响因子：
9.9
通讯作者：
Kamio, E
中科院分区：
文献类型：
--
作者：
Kondo, K;Kamio, E
本文研究了酸性有机磷微胶囊萃取柱对镧系元素的相互分离。结果表明，通过选择进料水溶液的pH值，可以简单地实现镧系元素的吸附和洗脱。用吸附柱与微胶囊展开柱相连接的方法研究了镧系元素的相互分离。通过选择洗脱液的pH值，使各金属相互分离，纯度在95%以上。此外，还导出了稀土金属离子吸附穿透曲线的数值解。
In this study, we investigate the mutual separation of lanthanoids by using a column packed with the microcapsules containing acidic organophosphorus compound as an extractant. It is found that adsorption and elution of lanthanoids are briefly achieved by selecting pHs of the feed aqueous solution. The mutual separation of lanthanoids is investigated using the adsorption column connected to the development column containing microcapsules. With selecting pHs of the eluent, each metal is separated mutually in more than 95% of purity. In addition, a numerical solution of breakthrough curve for an adsorption of rare-earth metal ions is derived.