Separation of Americium from Europium using Camphor-BisTriazinyl Pyridine: A Fundamental Study

Kayron N. Tevepaugh; Jesse D. Carrick; Serene Tai; Janet G. Coonce; Lætitia H. Delmau; Dale D. Ensor

doi:10.1080/07366299.2015.1110408

Separation of Americium from Europium using Camphor-BisTriazinyl Pyridine: A Fundamental Study

Kayron N. Tevepaugh, Jesse D. Carrick, Serene Tai, Janet G. Coonce, Lætitia H. Delmau, Dale D. Ensor

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13 Scopus citations

Abstract

Among the different components present in spent nuclear fuel, long-lived trivalent actinides are particularly difficult to separate from the shorter-lived lanthanide fission products due to their similar chemical properties. Selective extraction of americium from acidic solution (up to 2M HNO₃) containing tenth molar quantities of lanthanides has been achieved using neutral pyridine-based ligands dissolved in polar diluents. Nitrogen-based Bis Triazinyl Pyridine (BTP) ligands are desirable for both their excellent An/Ln selectivity and incinerability. Results pertaining to ligand solubility, kinetics, hydrolytic stability, and extraction performance in various nitric acid environments are presented.

Original language	English
Pages (from-to)	13-25
Number of pages	13
Journal	Solvent Extraction and Ion Exchange
Volume	34
Issue number	1
DOIs	https://doi.org/10.1080/07366299.2015.1110408
State	Published - Jan 2 2016

Funding

This research was sponsored by the Fuel Cycle Research and Development program, Office of Nuclear Energy, U.S. Department of Energy.

Funders	Funder number
Fuel Cycle Research and Development Program
U.S. Department of Energy
Office of Nuclear Energy

Keywords

minor actinide lanthanide separation
nitrogen donor extractant
polar solvent
solvent extraction

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10.1080/07366299.2015.1110408

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abstract = "Among the different components present in spent nuclear fuel, long-lived trivalent actinides are particularly difficult to separate from the shorter-lived lanthanide fission products due to their similar chemical properties. Selective extraction of americium from acidic solution (up to 2M HNO3) containing tenth molar quantities of lanthanides has been achieved using neutral pyridine-based ligands dissolved in polar diluents. Nitrogen-based Bis Triazinyl Pyridine (BTP) ligands are desirable for both their excellent An/Ln selectivity and incinerability. Results pertaining to ligand solubility, kinetics, hydrolytic stability, and extraction performance in various nitric acid environments are presented.",

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AU - Coonce, Janet G.

AU - Delmau, Lætitia H.

AU - Ensor, Dale D.

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Separation of Americium from Europium using Camphor-BisTriazinyl Pyridine: A Fundamental Study

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