Solvent Extraction of Zirconium(IV) and Uranium(VI) From Chloride Media With Bidentate Schiff Bases

The systematic liquid--liquid extraction behaviour of Zr(IV) and uranium(VI) with bidentate Schiff bases (HSB) in benzene as the diluent has been studied. Quantitative extraction of Zr(IV) has been achieved. Four consecutive extractions are, however, necessary for quantitative extraction of U(VI) at...

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Bibliographic Details
Published in:Solvent extraction and ion exchange 1985-01, Vol.3 (6), p.857-866
Main Authors: Panda, C R, Chakravortty, V, Dash, K C
Format: Article
Language:English
Online Access:Get full text
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Summary:The systematic liquid--liquid extraction behaviour of Zr(IV) and uranium(VI) with bidentate Schiff bases (HSB) in benzene as the diluent has been studied. Quantitative extraction of Zr(IV) has been achieved. Four consecutive extractions are, however, necessary for quantitative extraction of U(VI) at p H 6.0. The extracted species seem to be (Zr sub 4 (OH) sub 8 (H sub 2 O) sub 4 (HSB) sub 6 )Cl sub 8 and ((UO sub 2 ) sub 2 (OH) sub 2 (HSB))Cl sub 2 . The extraction efficiency is in the order: Zr exp 4+ > Th exp 4+ > UO exp 2+ sub 2 . It is possible to separate Zr from Th and U by solvent extraction with HSB. Exchange reaction technique has been employed for separation of Th and U. 19 ref.--AA
ISSN:0736-6299
DOI:10.1080/07366298508918544