期刊
JOURNAL OF SEPARATION SCIENCE
卷 38, 期 21, 页码 3810-3814出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201500628
关键词
Column experiments; Distribution coefficients; Hydroxyisobutyric acid; Isocratic elution; Lanthanides
Experiments were carried out using a strong acid cation exchange resin with a particle size of 75-150 mu m, termed as fine resin in hydrogen ion form for the elution of individual lanthanides Sm, Eu, Gd, Tb, and Dy that are produced as fission products in the spent nuclear fuel and generated in the effluent during reprocessing of spent nuclear fuel. Batch experiments were carried out to study the effect of concentration of nitric acid on distribution coefficient. The distribution coefficient values for these individual lanthanides were determined in nitric acid medium in the concentration range of 0.01-4.0 N. Uptake of each individual lanthanide by resin was increased with increased nitric acid concentration from 0.01 to 0.5 N and remained similar from 0.5 to 1.0 N and decreased thereafter up to 4.0 N. Column experiments were also carried out using the same resin to study the parameters like pH of the eluent, flow rate, and resin bed height under isocratic elution conditions for eluting lanthanide elements using alpha-hydroxyisobutyric acid as eluent. The results of this study have indicated the possibility for the elution of individual lanthanides.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据