甲基膦酸二(1-甲庚)酯对Np(Ⅳ)的萃取行为

Journal of Nuclear and Radiochemistry(2022)

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Abstract
研究了以煤油为稀释剂、甲基膦酸二(1-甲庚)酯(DMHMP)对硝酸介质中Np(Ⅳ)的萃取性能,考察相接触时间、萃取剂浓度、硝酸根浓度、HNO3浓度和温度对Np(Ⅳ)萃取分配比的影响.萃取过程主要以中性分子形式对Np(Ⅳ)进行萃取,利用斜率分析方法对萃取机理进行了探究,表明萃合物的组成为Np(NO3)4·2DMHMP.该反应的焓变为负值,表明萃取反应为放热反应.
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di(1-methyl-heptyl) methyl phosphonate,extraction,np(ⅳ)
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