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Okamura, Hiroyuki; Aoyagi, Noboru; Shimojo, Kojiro; Naganawa, Hirochika; Imura, Hisanori*
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Haga, Yoshinori; Aoki, Dai*
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Sasaki, Yuji; Kitatsuji, Yoshihiro; Ban, Yasutoshi; Morita, Keisuke; Sugo, Yumi*; Saeki, Morihisa*
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Amidic and diamidic extractants, which can be gasified by combustion, have the strong affinity with actinides. One of the advantages to use these extractants is to synthesize easily, many kinds of structures can be applied for actinide extraction. It is well-known that the compounds used up to now have high distribution ratios of actinides from nitric acid, e.g., monoamide (for U and Pu), malonamide (for minor actinides), and diglycolamide (for minor actinides). As one of important researches to approach into the development of the best extractant, we compare the actinide extractabilities by the amide compounds with the different structures, especially different central frames. The purpose of this work is to investigate their extractability and to find the excellent structures among amide compounds. In the presentation, we will show not only results of extraction of actinides but also alkali, alkaline earth, group 3, 4 and 5, and discuss with their structures.