The extraction, stripping and formation of third phase of U(VI), Th(IV) and Zr(IV) for tri-isoamyl phosphate/n-dodecane system containing di-isoamyl phosphate

被引：0

作者：

Huang, Xuanhao ^{[1
]}

Liu, Xingyue ^{[1
]}

Wang, Yiting ^{[1
]}

Wang, Zhuang ^{[1
]}

Yu, Qiao ^{[1
]}

Zhou, Hang ^{[1
]}

Li, Rui ^{[1
]}

Ding, Songdong ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Chengdu 610064, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2025年 / 334卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Tri-isoamyl phosphate; Di-isoamyl phosphate; Solvent extraction; Uranium; Thorium; Zirconium; SOLVENT-EXTRACTION; TRIALKYL PHOSPHATES; TRIBUTYL-PHOSPHATE; NITRIC-ACID; THORIUM; URANIUM; COMPLEXES; ZIRCONIUM; TBP; THERMODYNAMICS;

D O I：

10.1007/s10967-025-10068-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

As one of the main radiolysis products of tri-isoamyl phosphate (TiAP) in the spent fuel reprocessing process, di-isoamyl phosphate (DiAP) can lead to a significant deterioration of TiAP in extraction performance. In this context, the effect of DiAP on the extraction and stripping behaviors of U(VI), Th(IV), and Zr(IV) for 1.1 mol/L TiAP/n-dodecane organic phase was investigated for the first time. It has been shown that DiAP can increase the ability of TiAP to extract metal ions and inhibit the stripping, as well as promote the formation of interfacial deposition. Combined with the results of DLS, FT-IR, P-31 NMR, ESI-MS and elemental analysis, the role of DiAP in the formation of interfacial deposition was also elucidated.

引用

页码：3215 / 3225

页数：11

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