Croatica Chemica Acta, Vol. 38 No. 1, 1966.
Original scientific paper
The Solvent Extraction of Fe (III) and U (VI) with Mixtures of Tri-n-octylamine and Thenoyltrifluoroacetone in Benzene and Nitrobenzene
R. M. Nikolić
; The »Boris Kidric« Institute of Nuclear Sciences, Belgrade, Serbia, Yugoslavia
I. J. Gal
; The »Boris Kidric« Institute of Nuclear Sciences, Belgrade, Serbia, Yugoslavia
Abstract
Mixtures of tri-n-octylamine (TOA) chloride and thenoyltrifluoroacetone
(HTTA) in benzene extract Fe (III) from 0.5 M HCl
better than any single extractant. The effect is attributed to the
change in dielectric constant of the solvent with composition. In
nitrobenzene there is no increase in the extraction of Fe (III) by
the mixture. An enhanced extraction of U (VI) from 2 M HN03 takes place with mixtures of TOA-nitrate and HTTA both in benzene and nitrobenzene. If nitrobenzene is the diluent, experimental data indicate
that the increase in the extraction is due to the formation of an
organic species with a stoichiometric ratio U02 : H'!'TA : TOA of
1 : 1 : 1.
Keywords
Hrčak ID:
208180
URI
Publication date:
25.7.1966.
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