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Dioctyl butyramide and dioctyl isobutyramide as extractants for uranium(VI) and plutonium(IV)

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Abstract

Two isomeric monoamides, dioctyl butyramide (DOBA) and dioctyl isobutyramide (DOIBA) were synthesized for extracting uranium(VI) and plutonium(IV) from aqueous nitric acid medium into various diluents such asn-dodecane, tertiary butyl benzene and xylene. DOBA extracted uranium(VI) and plutonium(IV) efficiently whereas DOIBA extracted uranium(VI) with negligible extraction for plutonium(IV). Both these cations were extracted as their disolvates. The thermodynamic parameters involved in the extraction determined by the temperature variation method indicated the reactions in all cases to be enthalpy favoured and entropy disfavoured. Possibility of separating micrograms of plutonium(IV) from macroquantities of uranium(VI) using the mixture of these amides was explored.

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Authors and Affiliations

  1. Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, 400085, Bombay, (India)

    G. M. Nair, G. R. Mahajan & D. R. Prabhu

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  1. G. M. Nair
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  2. G. R. Mahajan
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  3. D. R. Prabhu
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Nair, G.M., Mahajan, G.R. & Prabhu, D.R. Dioctyl butyramide and dioctyl isobutyramide as extractants for uranium(VI) and plutonium(IV). Journal of Radioanalytical and Nuclear Chemistry, Articles 204, 103–111 (1996). https://doi.org/10.1007/BF02060871

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  • DOI: https://doi.org/10.1007/BF02060871

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