Effects of neodymium oxide on an electrorefining process of uranium

被引：13
作者：
Kang, Y. H. [2 ]
Hwang, S. C. [2 ]
Lee, H. S. [2 ]
Kim, E. H. [2 ]
Park, S. W. [2 ]
Lee, J. H. [1 ]
机构：
[1] Chungnam Natl Univ, Dept Nanomat Engn, Taejon 305764, South Korea
[2] Korea Atom Energy Res Inst, Taejon 305353, South Korea
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2009年 / 209卷 / 11期
关键词：
Electrorefining; Molten salt; Neodymium oxide; UV-vis; Computational fluid dynamics analysis; ELECTRONIC-ABSORPTION-SPECTRA; MOLTEN CHLORIDE; LICL-KCL; LANTHANIDES; REDUCTION; FUEL;
D O I：
10.1016/j.jmatprotec.2009.01.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrorefining experiments of uranium were carried out in LiCl-KCl eutectic molten salt containing metallic U and Nd2O3 compacts as a surrogate material of an electrolytically reduced spent PWR fuel at 500 degrees C to observe the dissolution behavior of Nd2O3. The Nd2O3 compacts were significantly attacked in the electrorefining condition regardless of the current density. It was found that the UCl3, which is an essential chemical for a uranium electrorefining, played a decisive role in the resultant chemical reaction with Nd2O3. This dissolution phenomenon of NdCl3 formed by the chemical reaction between Nd2O3 and UCl3 was confirmed by an in situ UV-vis absorption spectrometry equipped with a homemade high-temperature apparatus and XRD analysis. The effects of uranium oxide particle as a by-product in the electrorefining process were also discussed by using computational fluid dynamics analysis. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：5008 / 5013
页数：6
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