Proceedings of the Korean Radioactive Waste Society Conference (한국방사성폐기물학회:학술대회논문집)
- 2004.02a
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- Pages.245-256
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- 2004
Study on the Separation of MAs from HLLW and Their Extraction Behavior Using New Extractants of Amido Podand
- An, Ye-Guo (CIAE) ;
- Luo, Fang-Xiang (CIAE) ;
- Zhu, Zhi-Xuan (CIAE) ;
- Zhang, Xiang-Ye (CIAE) ;
- Zhu, Wen-Bin (CIAE)
- Published : 2004.02.01
Abstract
The extraction of three kinds of amido podands, N,N,N'N'-tetrabutyl-3-oxa-pentanedi- amide (TBDGA), N,N,N'N'-tetra-isobutyl-3-oxa-pentanediamide(TiBDGA) and N,N,N'N'-tetra- butyl-3,6-dioxa-oct-anediam- ide(TBDOODA) on U(VI),Pu(IV), Am(III), Eu(III) and other metal ions is studied in nitric acid solutions. 40%octanol-kerosene is chosen as diluents to eliminate third phase and emulsion. TBDGA and TiBDGA show extraction selectivity to An(III) and Ln(III) much higher than to U(VI) and Pu(IV). Fe, Ru and Mo is poorly extracted by the three kinds of amid podands in 2~3mol/L