Einfluss Organischer Lösungsmittel auf die Extraktion von Thorium(IV) und Uran(VI) mit Substituierten Sekundären,Tertiären und Quartären Ammoniumnitraten aus Salpetersauren Lösungen |
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Authors: | E R Schmid E Kenndler |
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Institution: | 1. Institut für Analytische Chemie der Universit?t Wien, W?hringer Stra?e 38, A-1090, Wien, ?sterreich
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Abstract: | The influence of ethanol on the distribution of thorium(IV) and uranium(VI) between solutions of nitric acid and solutions
of Amberlite LA-2, Trilaurylamine and Aliquat 336-nitrate has been investigated. Increasing amounts of nitric acid and ethanol
in the aqueous phase cause an increase of the acid concentration in the organic phase. This concentration can be calculated
by a given formula for Amberlite LA-2. The distribution of acid and ethanol is discussed. The distribution ratios of thorium(IV)
and uranium(VI) are changed by adding ethanol to the liquid-liquid-system. This can be explained by the shift of the equilibrium
of the metal nitrate complexes and by the enhanced extraction of acid.
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