钍-铀燃料后处理中新萃取剂的研究——Ⅱ.亚砜类的研究及其结构与性能的关系

THE STUDIES ON NOVEL EXTRACTANTS IN REPROCESSING OF SPENT THORIUM-URANIUM FUEL I . SULFOXIDES AND THEIR STRUCTURE AND EXTRACTING ABILITY

摘要: 研究了5种亚砜类萃取剂在稀释剂(煤油及芳烃稀释剂)中的溶解性及对钍、铀的萃取性能。结果表明,二个具支链的烷基亚砜,即二(2-乙基己基)亚砜及二(1-甲基庚基)亚砜不仅与TBP一样可与煤油互溶,而且某些性能优于TBP。还对亚砜萃取剂结构与性能的关系作了初步探讨。

Abstract: The solubility of five kinds of sulfoxides in diluents (such as kerosene and aromatic hydrocarbon diluents)and their extracting ability for thorium and uranium from nitric acid solution are presented. The results show that two dialkyl sulfoxide with branch chain, such as di (2-ethylhexyl) sulfoxide (DEHSO)and di(1-methylheptyl)sulfoxide(DMHpSO) ,are not only completely miscible with kerosene, but also superior to tri-n-butyl-phosphate(TBP)in some abilities. The relations between the structure of the sulfoxides and their extracting ability are briefly discussed.