The Synergistic Extraction of Uranium with Mixtures of Cyanex-272 and Cyanex-923, TPBD, TNBD, TOPO from Thiocyanate Medium
M. Jaya Rami Reddy, T.J. Sudha Vani, N. Sivagangi Reddy, K.S.V. Krishna Rao, P.V. Nagendra Kumar, L. Krishna Reddy and A.V.R. Reddy
DOI:
Volume 1, Issue 2 | Pages: 99-104
Abstract
The extraction of uranium (VI) from thiocyanate solutions using Cyanex 272, Cyanex 923, TPBD, and TNBD in
xylene as extractants has been investigated. Analysis of the extraction data by both graphical and theoretical
methods by taking into account complexation of the metal ion in the aqueous phase with organic ligands and all
plausible complexes extracted into the organic phase has been done. The metal ion is extracted into xylene as
UO2(HA2)2. The plot of log D vs pH has a slope of 2. Mixed species of the type UO2(HA2)2.S (where S=
TPBD/TNBD) and UO2(HA2)SCN.S (where S = cyanex 923/TOPO) obtained may be responsible for the
synergism.
Keywords
Synergistic extraction Cyanex 272 Cyanex 923 TPBD TNBD UraniumReferences
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Citation
M. Jaya Rami Reddy, T.J. Sudha Vani, N. Sivagangi Reddy, K.S.V. Krishna Rao, P.V. Nagendra Kumar, L. Krishna Reddy and A.V.R. Reddy. The Synergistic Extraction of Uranium with Mixtures of Cyanex-272 and Cyanex-923, TPBD, TNBD, TOPO from Thiocyanate Medium. J Appl Pharm Sci. 2013; 1(2):99-104.