Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2018 Impact factor 0.961

Nuclear Science and Techniques ›› 1997, Vol. 8 ›› Issue (4): 251

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Coextraction of uranium(VI) from nitric acid solutions by N,N-diethyldecanamide and TBP

Sun Guo-Xin1, Wang You-Shao1, Yang Yan-Zhao1, Bao Bo-Rong1, Sun Si-Xiu2   

  1. 1 Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800;
    2 Department of Chemistry, Shandong University, J?nan 250100
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Sun Guo-Xin, Wang You-Shao, Yang Yan-Zhao, Bao Bo-Rong, Sun Si-Xiu. Coextraction of uranium(VI) from nitric acid solutions by N,N-diethyldecanamide and TBP.Nuclear Science and Techniques, 1997, 8(4): 251

Abstract: The partition of uranium(VI) between nitric acid and N,N-diethyldecanamide, C9H19CON(C2H5)2, (DEDEA) in kerosene has been investigated at various concentrations of nitric acid, extractant and salting-out agent LiNO3. The mechanism of extraction is discussed in the light of the results obtained. The effect of TBP on the extraction of uranium(VI) with DEDEA has also been considered. There is apparent synergism between these two extractants at low concentration of TBP; however, at higher concentration, distribution ratio decreases.

Key words: N,N-diethyldecanamide, U(VI), TBP, Solvent extraction