Abstract
Solvent extraction of thorium/IV/ by a commercially available chelating extractant LIX-54 /a β-diketone derivative/ /HA/ and its mixtures with tri-n-butyl phosphate /TBP/, thenoyltrifluoroacetone /HTTA/ and tri-n-octyl phosphineoxide /TOPO/ in benzene as the diluent have been studied. Quantitative extraction of thorium/IV/ by the mixture of 10% LIX-54 and 0.1M TOPO was noticed at pH 2.8. Influence of various concentrations of HTTA and TOPO in their mixtures with LIX-54 on the extraction of the same metal ion has been investigated and pronounced synergism was observed. Slope analyses determination shows the extracted species to be possibly of the type [Th/TTA/2/A/2] in case of extraction by mixtures of HTTA and LIX-54. Slopes of the linear plots were computed employing regression analysis, and variance in results has been shown.
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Singh, S., Chakravortty, V. & Dash, K.C. Liquid-liquid extraction of thorium/IV/ with LIX-54 and its mixtures. Journal of Radioanalytical and Nuclear Chemistry Letters 127, 349–356 (1988). https://doi.org/10.1007/BF02166615
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DOI: https://doi.org/10.1007/BF02166615