The extraction distribution of nitrosyl ruthenium complexes between nitric acid solutions and 30% (V/V) tri-n-butyl phosphate kerosene solutions has been studied.The influence of the nitric acid concentration, the aged time of ~(106)Ru stock solution and its temperature on the distribution ratio of ruthenium has been examined.It was found that the distribution ratio as a function of the nitric acid concentration shows a maximum near 0.5M HNO_3 at different temperature.The distribution ratio decreases rapidl...
【更新日期】
2007-03-19
【正文快照】
前言 以溶液萃取法从被辐照过核燃料中提取铀和怀的过程中,放射性裂变产物中‘。。+’“。Ru的去污是一个重要而又困难的问题,这是由于核燃料元件经硝酸溶解处理后,钉主要以亚硝酞钉(RoN办)形式存在,而它能与溶液中的No:一,NO一:,oH一和H:0等配位体形成各种复杂的络合物。在T B