核化学与放射化学2016，Vol.38Issue(3)：159-165,7.DOI:10.7538/hhx.2016.38.03.0159
离子交换法提取大量钍中微量铀
Recovery of Trace Uranium From Large Quantities of Thorium
摘要
Abstract
This work describes the ion exchange separation of trace amounts of uranium from large quantities of thorium and fission product elements .The fission elements were investi‐gated including Cs ,Sr ,Y ,Zr ,Nb ,Ru ,Rh ,La ,Ce and Eu .The separation method employed Dowex1 × 8 as anion exchanger and Dowex50 × 8 as cation exchanger . U was strongly adsorbed on the Dowex1 × 8 resin from a medium of 8 mol/L HCl .Then washed the column by 8 mol/L HCl‐0.2 mol/L NH4 F mixture .The large quantities of Th as well as other elements concerned passed into the effluent and were thus separated .U was eluted using 0.05 mol/L HNO3 .The U product contaminated pud with even equal concentration of Th can be satisfactorily purified by feeding directly to the cation exchange column and stripping using 2 mol/L HNO3 to achieve the final purification of U from Th .关键词
离子交换/钍/铀/裂片元素Key words
ion exchange/thorium/uranium/fission element分类
能源科技引用本文复制引用
陈姆妹,李峥,何淑华,张岚..离子交换法提取大量钍中微量铀[J].核化学与放射化学,2016,38(3):159-165,7.基金项目
中国科学院战略性科技先导专项---钍基熔盐堆核能系统 （）
