Solvent Extraction of Pu(IV) Using TBP: A Comparative Study of n-dodecane and a Room Temperature Ionic Liquid

被引：25

作者：

Panja, S. ^{[1
]}

Tripathi, S. C. ^{[1
]}

Dhami, P. S. ^{[1
]}

Gandhi, P. M. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Fuel Reproc Div, Bombay 400085, Maharashtra, India

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2015年 / 50卷 / 15期

关键词：

RTIL; Pu(IV); kinetics; back extraction; reusability; HARMFUL RADIOLYTIC PRODUCTS; URANIUM(VI); MECHANISM; ELECTRODEPOSITION; IDENTIFICATION; CHROMATOGRAPHY; COORDINATION;

D O I：

10.1080/01496395.2015.1052883

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The extraction of Pu(IV) from nitric acid medium using TBP has been compared with two diluents using n-dodecane and a RTIL, 1-butyl-3-methylimidazolium bis(trifluoromethanesulphonyl)imide (C(4)mimTf(2)N). Kinetics of extraction was slower in RTIL compared to n-dodecane. The mechanism of extraction was found to be cation exchange at lower acidity which changes to the formation of a neutral complex at higher acidity greater than 1M HNO3 for RTIL. Back extraction of Pu from the loaded organic phase was equally effected using 0.1M oxalic acid and a mixture of guanidine carbonate and EDTA as strippant from both the extraction systems under study. Radiation stability and reusability studies showed promise for future application.

引用

页码：2335 / 2341

页数：7

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