Extractive separation of trivalent lanthanide metals with a combination of Di(2-ethylhexyl)phosphoric acid and 1,10-phenanthroline.
作者： Hasan Zahir , Yoshitaka Masuda
DOI: 10.1016/S0039-9140(96)02067-X
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摘要: Abstract The equilibrium extraction behavior of a series trivalent lanthanide ions (Ln 3+ ) using chloroform-Kerosine solution containing Di(2-ethylhexyl)phosphoric acid, combined with an adductant, 1,10-phenanthroline monohydrate (phen), was studied. enhancement the by addition such neutral adductant is explained in terms quaternary complex, M(HX 2 3 (phen) , to into organic phase. stoichiometry, constants and separation factors these systems were determined. partially follow order atomic numbers. synergistic increased other Gd > Er Ho Eu Ce La Pr highest factor observed for ErHo (2.09). pH 1 values also obtained. In this system, both found be greater than those commercial extractants.
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