Separation of middle rare earths by solvent extraction using 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant

Separation of middle rare earths by solvent extraction using 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant

The extraction of the trivalent middle rare earths from chloride media by kerosene solutions of 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant was studied. The separation factors between the elements using solution simulating wastes from NiMH spent batteries have been evaluated...

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Veröffentlicht in:Journal of rare earths 2009-10, Vol.27 (5), p.830-833
Hauptverfasser: Fontana, Danilo, Pietrelli, Loris
Format: Artikel
Sprache:eng
Schlagworte:
Chlorides
Esters
Kerosene
Rare earth metals
rare earths
Separation
Simulation
Solvent extraction
Wastes
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Zusammenfassung:The extraction of the trivalent middle rare earths from chloride media by kerosene solutions of 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant was studied. The separation factors between the elements using solution simulating wastes from NiMH spent batteries have been evaluated: the order of the extractive ability of extractant can be confirmed in Tb>Gd>Eu>Sm.
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(08)60344-0