【摘要】 所有实验与相同条件下的TBP进行比较。结果表明(2-乙基)己基亚砜(DEHSO)萃取Zr、Nb、Ru元素的分配系数与水相硝酸浓度的变化规律和TBP相似,但DEHSO的萃取能力普遍比TBP强。在低辐照条件下,辐照对萃取分配系数几乎无影响;高辐照剂量下,辐照对这些元素萃取分配系数的影响比较复杂。DEHSO的辐解稳定性明显比TBP好。更多还原

【Abstract】 In this paper, the extraction of fission products from nitric acid media by di(2-ethylhexyl) sulfoxide(DEHSO) and the effect of γ ray irradiation on its extraction ability is described. All studies on DEHSO are compared with those on TBP. The distribution ratio of fission products as a function of aqueous nitric acid concentration is in similar manner for DEHSO and TBP,but the distribution ratio with DEHSO is usually higher than that with TBP. The radiolytic stability of DEHSO is better than that of TBP.更多还原