HBMPPT的合成及其对铀(Ⅵ)的萃取机理研究  

STUDIES ON THE SYNTHESIS OF HBMPPT AND ITS SOLVENTEXTRACTION MECHANISM OF U() FROM NITRIC ACID

作　　者：余绍宁[1,2] 马丽[1,2] 王腾蛟 杨延钊[1,2] 包伯荣 

机构地区：[1]上海海军医学研究所 [2]中国科学院上海原子核研究所

出　　处：《核化学与放射化学》1999年第1期51-55,共5页Journal of Nuclear and Radiochemistry

摘　　要：合成了４－苯甲酰基－２，４二氢－５－甲基－２－苯基－３Ｈ－吡唑硫酮－３（ＨＢＭＰＰＴ），研究了ＨＢＭＰＰＴ在硝酸介质中对铀（Ⅵ）的萃取行为，其萃取分配比随萃取剂浓度、ｐＨ值的升高而增大。The extraction agent HBMPPT (4benzoyal2, 4dihydro5methyl2phenyl3Hpyrazol3thione) is synthesized from PMBP. The solvent extraction of U() from nitric acid solution by HBMPPT in benzene has been studied. The extraction ability of HBMPPT is not so high as that of its precursor (PMBP). The distribution ratio of U() increases with the increasing pH of the aqueous phase. When the pH increases, the distribution ratio of U() increases linearly with the slope of 1.56. When the concentration of HBMPPT increases, the distribution ratio of U() increases rapidly. lgDlgc(HBMPPT) is linear with the slope of 143. The extraction mechanism is the cation exchange, forming UO2(BMPPT)2 and UO2NO3(BMPPT).

关 键 词：铀 HBMPPT 合成 萃取 

分 类 号：TL212.32[核科学技术—核燃料循环与材料] TQ421.12[化学工程]