异羟肟酸型配位体对TBP萃取钚行为的影响研究  

EFFECT OF HYDROXAMIC ACID LIGANDS ON THE EXTRACTION OF PLUTONIUM BY TBP

作　　者：江浩[1] 常志远[1] 潘永军[1] 朱建民[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核化学与放射化学》2000年第1期1-7,共7页Journal of Nuclear and Radiochemistry

摘　　要：为有效地去除铀产品中的钚 ,以乙异羟肟酸和丙异羟肟酸为无盐配位体 ,用单级萃取分配法 ,对TBP萃取Pu(Ⅳ )行为进行了研究。探讨了时间、酸度、配位体浓度、相比、温度、磷酸二丁酯(HDBP)浓度、Pu价态等因素对分配比D的影响。研究结果表明 ,异羟肟酸型配位体对Pu(Ⅳ )有很好的配位效果。This work is a preliminary investigation on the application of aceto and propionylhydroxamic acid as complexing agents of Pu for the improvement of U/Pu separation. The effects of varying complexing agents and nitric acid concentration, HDBP concentration, phase ratio, temperature and standing time on D (Pu(Ⅳ)) are studied in detail for the extraction and stripping of Pu by TBP. The extraction behavior of Pu(Ⅳ) of various valent states has been investigated with acetohydroxamic acid as well. The single stage distribution experimental results show that the above two hydroxamic acids are very strong complexing agents for plutonium.

关 键 词：异羟肟酸 乏燃料后处理 钚 萃取 

分 类 号：TL241.14[核科学技术—核燃料循环与材料] O614.353[理学—无机化学]