Efficient separation of europium by solvent extraction using bis(2-ethylhexyl) phosphate

被引：1

作者：

Wang, Yi ^{[1
]}

Yang, Jiajia ^{[1
]}

Sui, Jixue ^{[1
]}

Wang, Lan ^{[2
]}

Tang, Jia ^{[1
]}

Yang, Yu ^{[1
]}

Lu, Yunyun ^{[1
]}

Dai, Shuang ^{[1
]}

Cao, Qi ^{[1
]}

机构：

[1] Nucl Power Inst China, Reactor Operat & Applicat Res Sub Inst, Chengdu 610041, Sichuan, Peoples R China

[2] Sichuan Univ Sci & Engn, Sch Chem Engn, Zigong 643000, Sichuan, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 06期

关键词：

Separation; Europium; P204; Solvent extraction; ACID; AMERICIUM(III);

D O I：

10.1007/s10967-024-09490-x

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Efficient separation of europium (Eu) from aqueous solution is pivotal for the sustainable development of nuclear industry and rare earth industry. In this work, bis(2-ethylhexyl) phosphate (P204) was employed to separate Eu(III) by solvent extraction method using kerosene as diluent. The extraction equilibrium could reach within 30-min contact time. The extraction ratio enhanced as the increased O:A phase ratio, extractant concentration, and temperature. However, the HCl introduction caused its clear descent. Combined with the slope method and FT-IR analysis, extraction mechanism could be unveiled, which is the coordination between P=O double bond and Eu(III) ions in a proportion of 3:1.

引用

页码：2691 / 2696

页数：6

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