Speciation of ruthenium in organic TBP/TPH organic phases: a study about acidity of nitric solutions

被引：13
|
作者：
Lefebvre, C. [1 ]
Dumas, T. [1 ]
Charbonnel, M-C. [1 ]
Solari, P. L. [2 ]
机构：
[1] CEA Marcoule, DEN, DRCP, SMCS,LILA, Bat 181,BP 17171, F-30207 Bagnols Sur Ceze, France
[2] Synchrotron SOLEIL, BP 48, F-91192 Gif Sur Yvette, France
来源：
ATALANTE 2016 INTERNATIONAL CONFERENCE ON NUCLEAR CHEMISTRY FOR SUSTAINABLE FUEL CYCLES | 2016年 / 21卷
关键词：
Ruthenium; PUREX process; Tributyl-phosphate solvent; speciation; extraction mechanism; X-ray absorption spectroscopy; FTIR; FT-IR; COMPLEXES; NITROSYLRUTHENIUM; SPECTROSCOPY;
D O I：
10.1016/j.proche.2016.10.008
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Ruthenium extraction with uranium and plutonium during the reprocessing of nuclear used fuel is an important element to follow because its presence leads to a decrease of the decontamination factors and causes enhanced radiolysis of the solvent. A study was carried out on the speciation of ruthenium in both aqueous and organic phases by complementary spectroscopic techniques such as FTIR and X-ray absorption spectroscopy. By providing a better understanding of the ruthenium extraction mechanism, this study will help to support the modeling of related processes. (C) 2016 The Authors. Published by Elsevier B.V.
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页码：54 / 60
页数：7
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