[Determination of extraction separation of Pd(II), U(VI) and Mo(VI) in PEG-Na2SO4-PAR system using spectrophotometry].
In polyethylene glycol-2000(PEG)-sodium sulfate (Na2SO4)-4-(2-Pyridylazo) resorcinol (PAR) system the extraction separation behaviour of the complexes of Pd(II), U(VI), Mo(VI) and La(III) was investigated. The results indicated that the complexes of Pd(II) and U(VI) with PAR were almost completely extracted by the PEG phase, La(III) was partly extracted, while Mo(VI) was not extracted from the aqueous solution of pH 4.5-7.5. So Mo(VI) was quantitatively separated from the mixed solution of Mo(VI), Pd(II) and U(VI) ions. The extraction mechanism for PEG phase was studied preliminarily.
Deng
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F
Department of Chemistry, Huaibei Teacher's College of Coal Industry, 235000 Huaibei.
Si
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Y
Liu
Y
Y