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.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
2000年第1期1-7,共7页
Journal of Nuclear and Radiochemistry
关键词
异羟肟酸
乏燃料后处理
钚
萃取
aceto and propionyl hydroxamic acid
salt free ligands
TBP
plutonium
