Modeling and Separation of Rare Earth Elements by Countercurrent Electromigration: A New Separation Column

ABSTRACTThe separation of a samarium (90%) and europium (10%) mixture in α-hydroxy isobutyric acid was performed in a new countercurrent electromigration system. The mobilities of these elements were estimated, and samarium of better than 99.9% purity was obtained. The equilibrium of multicoordinate complexes of these elements