Title of article
Solvent extraction of Gd(III) from perchlorate and nitrate media with mixtures of thenoyltrifluoroacetone and Benzo-15-Crown-5
Author/Authors
Jordanov, Valeri Department of General and Inorganic Chemistry - University of Chemical Technology and Metallurgy - 8 Kliment Okhridski Blvd - 1756 Sofia, Bulgaria
Pages
8
From page
127
To page
134
Abstract
The extraction of Gadolinium (Gd) from perchlorate and nitrate media in 1,2-dichloroethane
(C2H4Cl2), carbon tetrachloride (CCl4) and chloroform (CHCl3) by mixtures of 2-
thenoyltrifluoroacetone (HTTA) and a crown ether benzo-15-crown-5 (B15C5) is investigated.
The composition of the extracted species is determined as Gd(TTA)3.nB15C5 (n=1 in nitrate
medium and n=2 in perchlorate medium). The values of the equilibrium constant KT,S and βT,S
are calculated. The influence of the water medium and the polarity of organic diluents on the
extraction process are discussed.
Keywords
Lanthanoids , Thenoyltrifluoroacetone , Benzo-15-crown-5 , Synergistic extraction
Journal title
Astroparticle Physics
Serial Year
2011
Record number
2438411
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