论文部分内容阅读
以个苯甲酰基－２，４二氢－５－甲基－２－苯基－３Ｈ－吡唑硫酮－３（ＨＢＭＰＰＴ）为萃取剂、二正辛基亚砜（ＤＯＳＯ）为协萃剂，研究其在硝酸介质中对铀（Ⅵ）的萃取行为，以及萃取剂浓度、酸度等各种因素对萃取分配比的影响，以确定两种萃取剂的协同萃取及分离效果。结果表明，ＨＢＭＰＰＴ和ＤＯＳＯ有较好的协同萃取效果，一定条件下，铀（Ⅵ）、钍（Ⅳ）的分离系数可达５２３。
Using benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazolethione-3 (HBMPPT) as extractant and di-n-octyl sulfoxide , The extraction behavior of uranium (Ⅵ) in nitric acid medium was studied, and the influence of various factors such as extractant concentration and acidity on the extraction and distribution ratio was studied in order to determine the synergistic extraction and separation effects of two extraction agents. The results showed that HBMPPT and DOSO had a good synergistic extraction effect. Under certain conditions, the separation factor of uranium (Ⅵ) and thorium (Ⅳ) reached 523.