Europium and samarium separation using ion exchange between molten salts and beta“-alumina

Kristian G. Myhre; Justin R. Knowles; Miting Du

doi:10.1080/01496395.2019.1604754

Europium and samarium separation using ion exchange between molten salts and beta“-alumina

Kristian G. Myhre, Justin R. Knowles, Miting Du

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5 Scopus citations

Abstract

The separation of Eu and Sm from each other is made difficult by their shared preference to be a trivalent cation as well as their similar ionic radii. A new approach to separating Eu and Sm using ion exchange reactions between molten salts and a solid electrolyte, beta″-alumina, has been demonstrated. The highest separation factor achieved was greater than 30. However, the Eu extraction efficiency was low. The highest Eu extraction efficiency achieved was 51.8% ± 2.6 with a separation factor of 4.70 ± 0.46.

Original language	English
Pages (from-to)	1695-1701
Number of pages	7
Journal	Separation Science and Technology (Philadelphia)
Volume	55
Issue number	9
DOIs	https://doi.org/10.1080/01496395.2019.1604754
State	Published - Jun 12 2020

Funding

This work was supported by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy; The authors would like to thank Jason Craig for his help in preparing and sealing quartz ampoules. Research sponsored by the Laboratory Directed Research and Development Program at Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Funders	Funder number
DOE Public Access Plan
United States Government
U.S. Department of Energy	DE-AC05-00OR22725
Oak Ridge National Laboratory

Keywords

Ion exchange
europium
molten salt
samarium
solid electrolyte

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10.1080/01496395.2019.1604754

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abstract = "The separation of Eu and Sm from each other is made difficult by their shared preference to be a trivalent cation as well as their similar ionic radii. A new approach to separating Eu and Sm using ion exchange reactions between molten salts and a solid electrolyte, beta″-alumina, has been demonstrated. The highest separation factor achieved was greater than 30. However, the Eu extraction efficiency was low. The highest Eu extraction efficiency achieved was 51.8% ± 2.6 with a separation factor of 4.70 ± 0.46.",

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author = "Myhre, {Kristian G.} and Knowles, {Justin R.} and Miting Du",

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AU - Du, Miting

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Y1 - 2020/6/12

N2 - The separation of Eu and Sm from each other is made difficult by their shared preference to be a trivalent cation as well as their similar ionic radii. A new approach to separating Eu and Sm using ion exchange reactions between molten salts and a solid electrolyte, beta″-alumina, has been demonstrated. The highest separation factor achieved was greater than 30. However, the Eu extraction efficiency was low. The highest Eu extraction efficiency achieved was 51.8% ± 2.6 with a separation factor of 4.70 ± 0.46.

AB - The separation of Eu and Sm from each other is made difficult by their shared preference to be a trivalent cation as well as their similar ionic radii. A new approach to separating Eu and Sm using ion exchange reactions between molten salts and a solid electrolyte, beta″-alumina, has been demonstrated. The highest separation factor achieved was greater than 30. However, the Eu extraction efficiency was low. The highest Eu extraction efficiency achieved was 51.8% ± 2.6 with a separation factor of 4.70 ± 0.46.

KW - Ion exchange

KW - europium

KW - molten salt

KW - samarium

KW - solid electrolyte

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JF - Separation Science and Technology (Philadelphia)

IS - 9

ER -

Europium and samarium separation using ion exchange between molten salts and beta“-alumina

Abstract

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Keywords

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