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Title: Analysis and modeling of the equilibrium behaviors of U and Pu in molten LiCl-KCl/Cd system at 500 °C

Abstract

In the field of pyroprocessing of used nuclear fuels, liquid cadmium is applied in different ways to recover transuranics from molten salt, while effecting some degree of separations between transuranics and lanthanides. In this work, a model of the separation performance between uranium and plutonium across the phase boundary between molten salt and liquid cadmium is presented. The salt is the LiCl-KCl eutectic with solute concentrations of UCl 3 and PuCl 3. The cadmium is the liquid cadmium phase field from the Cd-U-Pu ternary alloy system. Lastly, the model used to describe the behavior of uranium and plutonium in the salt/cadmium system is applied to describe the behavior of plutonium and lanthanide in the salt/cadmium system.

Authors:
ORCiD logo [1]; ORCiD logo [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States). Pyroprocessing Department
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1478469
Report Number(s):
INL/JOU-18-44719-Rev000
Journal ID: ISSN 0022-3115
Grant/Contract Number:  
AC07-05ID14517
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 508; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; pyroprocessing; uranium; plutonium; cadmium; liquid cadmium cathode; electrorefining; electrometallurgical; nuclear fuel reprocessing; liquid metal extraction

Citation Formats

Fredrickson, Guy L., and Yoo, Tae-Sic. Analysis and modeling of the equilibrium behaviors of U and Pu in molten LiCl-KCl/Cd system at 500 °C. United States: N. p., 2018. Web. doi:10.1016/j.jnucmat.2018.05.037.
Fredrickson, Guy L., & Yoo, Tae-Sic. Analysis and modeling of the equilibrium behaviors of U and Pu in molten LiCl-KCl/Cd system at 500 °C. United States. doi:10.1016/j.jnucmat.2018.05.037.
Fredrickson, Guy L., and Yoo, Tae-Sic. Sat . "Analysis and modeling of the equilibrium behaviors of U and Pu in molten LiCl-KCl/Cd system at 500 °C". United States. doi:10.1016/j.jnucmat.2018.05.037. https://www.osti.gov/servlets/purl/1478469.
@article{osti_1478469,
title = {Analysis and modeling of the equilibrium behaviors of U and Pu in molten LiCl-KCl/Cd system at 500 °C},
author = {Fredrickson, Guy L. and Yoo, Tae-Sic},
abstractNote = {In the field of pyroprocessing of used nuclear fuels, liquid cadmium is applied in different ways to recover transuranics from molten salt, while effecting some degree of separations between transuranics and lanthanides. In this work, a model of the separation performance between uranium and plutonium across the phase boundary between molten salt and liquid cadmium is presented. The salt is the LiCl-KCl eutectic with solute concentrations of UCl3 and PuCl3. The cadmium is the liquid cadmium phase field from the Cd-U-Pu ternary alloy system. Lastly, the model used to describe the behavior of uranium and plutonium in the salt/cadmium system is applied to describe the behavior of plutonium and lanthanide in the salt/cadmium system.},
doi = {10.1016/j.jnucmat.2018.05.037},
journal = {Journal of Nuclear Materials},
number = C,
volume = 508,
place = {United States},
year = {2018},
month = {5}
}

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