Novel extraction systems based on neutral and cation-exchange extractants and their use for decontamination of SNF and HLW solutions from the major amount of radioactivity
作者:D. N. Shishkin、N. K. Petrova
DOI:10.1134/s1066362211050080
日期:2011.10
salts of dibutyl hydrogen phosphate, chlorinated cobalt dicarbollilde (CCD)] extractants in a polar diluent and an aqueous solution of a complexone and HNO3 were developed for decontamination of solutions from the major amount of long-lived fission products (137Cs, 90Sr, 90Y, 152,154Eu) and actinides, including transplutonium elements (241Am, 244Cm). Stable and weakly radioactive fission and corrosion
基于中性[二苯基-N,N-二丁基氨基甲酰基甲基氧化膦(CMPO),聚乙二醇(PEG)]和阳离子交换[磷酸二丁基氢二氢锆和ha盐,氯化二碳酰钴(CCD)]萃取剂的新型萃取系统开发了稀释剂以及络合物和HNO 3的水溶液,以从大量的长寿命裂变产物(137 Cs,90 Sr,90 Y,152,154 Eu)和act系元素(包括跨p元素)(241 Am,244厘米)。经过这种处理后,稳定且弱放射性的裂变和腐蚀产物(Zr,Mo,Mg,Pd,Ru,Rh,Si,Sb,Na,Fe,Cr等)保留在溶液中,并且可以通过电感耦合等离子体同时测定原子发射光谱法和质谱法。例如,在三个萃取-洗涤操作中,使用0.005 M CCD的混合物(在邻氯硝基苯-CCl4混合物中添加PEG和CMPO作为萃取剂)和0.05 M HNO 3和1 gl -1 H 2 C 2的溶液Ø 4作为洗涤水溶液,被测水溶液的放射性降低了6个数量级以