Separation of middle rare earths by solvent extraction using 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant
来源期刊：JOURNAL OF RARE EARTHS2009年第5期
论文作者：Loris Pietrelli Danilo Fontana
Key words：solvent extraction; rare earths; separation;
Abstract: 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 ThGdEuSm.
Loris Pietrelli1，Danilo Fontana1
(1.ENEA, Italian National Agency for New Technologies, Energy and the Environment Via Anguillarese 301, 1-00123 Roma, Italy)
Abstract: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 ThGdEuSm.
Key words:solvent extraction; rare earths; separation;
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