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本工作研究了硝酸体系中的温度、水相硝酸浓度、铀饱和度对钌萃取的分配系数的影响,给出了D(U(Ⅵ))和D(Ru)与某些因素的关系,并对其分配规律进行了研究。将经中子活化后的金属钌,溶解,制备以103Ru为标记的亚硝酰钌硝酸基络合物溶液,作为原始储备液。某些实验结果如下。1)在无铀条件下,温度升高,钌的分配系数下降;硝酸浓度升高,不同温度条件下钌的分配系数均呈减小趋势。这表明,高温、高酸有利于降低钌的分配系数,利于除钌(图1)。
In this work, the effects of temperature, aqueous nitric acid concentration and uranium saturation on the partition coefficient of ruthenium extraction were studied. The relations between D (U (Ⅵ)) and D (Ru) and some factors were given The distribution of law was studied. The metal ruthenium after the activation of the neutron is dissolved to prepare a solution of nitrosyl ruthenium nitrate based complex labeled with 103Ru as the original stock solution. Some experimental results are as follows. 1) Under uranium-free conditions, the distribution coefficient of ruthenium decreased with the increase of temperature; the distribution coefficient of ruthenium decreased with the increase of nitric acid concentration. This shows that the high temperature, high acid is conducive to reducing the distribution coefficient of ruthenium, which facilitates the addition of ruthenium (Figure 1).