摘要
用萃取法研究了硝酸铀（Ⅳ）-磷酸三丁酯（TBP）-煤油萃取体系中有机相TBP浓度、水相铀（Ⅳ）浓度、硝酸浓度以及温度对铀（Ⅳ）稳定性的影响；并测定了不同条件下铀（Ⅳ）的氧化速率，找到了稳定铀（Ⅳ）的实验条件；还研究了除肼以外的其他稳定剂（尿素、硝酸羟氨）对铀（Ⅳ）稳定性的影响．
The effects of concentrations of uranium (Ⅳ), nitrate acid in the aqueous solution and TBP in the organic solution on the oxidation rate of uranium (Ⅳ ) to the stability of uranium (Ⅳ) in solvent extraction system of uranium (Ⅳ) nitrate and tributyl phosphate (TBP)-kerosene have been investigated, the oxidation rate of uranium (Ⅳ) under different condition has been measured and the condition for stabilities of uranium (Ⅳ ) is obtained.The effects of other stabilizer (hydragine, urea, hydroxylamine nitrate) to the stability of uranium (Ⅳ) have also been studied.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
1997年第1期47-52,共6页
Journal of Fudan University：Natural Science
关键词
铀
稳定性
萃取
磷酸三丁酯
硝酸铀
tetravalent uranium
stability
solvent extraction
tributyl phosphate
