Competitive complexation of solid lanthanide nitrates with tri-n-butyl phosphate in n-hexane

被引：7

作者：

Wang, Zhuangfei ^{[1
]}

Liu, Tingting ^{[2
]}

He, Xihong ^{[1
]}

Zhu, Liyang ^{[1
]}

He, Hui ^{[1
]}

机构：

[1] China Inst Atom Energy, Dept Radiochem, Beijing 102413, Peoples R China

[2] Harbin Engn Univ, Coll Nucl Sci & Technol, Harbin 150001, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 311卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Lanthanide nitrate; n-Hexane; Separation factor; Competitive complexation; SUPERCRITICAL-FLUID EXTRACTION; URANIUM; SEPARATION; ACTINIDES; RECOVERY; CO2;

D O I：

10.1007/s10967-016-5027-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Competitive complexation of solid lanthanide nitrates with tri-n-butyl phosphate (TBP) in n-hexane was studied by spectroscopic methods. For light lanthanides binary system (Nd-Pr), they complexed with TBP equally, leading to a low separation factor. However, distinct different behavior was observed for light-heavy lanthanides binary system (Nd-Ho). Heavy lanthanide Ho(NO3)(3)center dot 6H(2)O complexed preferentially with TBP, resulting in a much higher separation factor. The separation factor was low during H2O stripping of lanthanides from their complexes in n-hexane, even thought, the tendency of stripping more light lanthanide was also observed.

引用

页码：483 / 489

页数：7

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