Chromatographic separation of americium from europium using bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine

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

doi:10.1007/s10967-017-5365-0

Chromatographic separation of americium from europium using bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine

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

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Abstract

The separation of americium(III) from europium(III) was achieved utilizing a bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine (CA-BTP) chromatographic resin. The extraction chromatographic materials were prepared using various concentrations of CA-BTP. This new, hydrolytically stable extractant was impregnated on an inert polymeric support at 40% loading. The uptake of Am(III) and Eu(III) by this material from 0.1 to 4.0 M aqueous HNO₃ solutions was measured. The resulting dry weight distribution ratios, D_w, indicated a strong preference for Am(III) with little affinity for Eu(III). These results are similar to recently reported solvent extraction studies indicating a maximum uptake of Am(III) in the 0.5–1.0 M HNO₃ range. The resin preparation, performance, and characterization of the Am/Eu separation are reported herein.

Original language	English
Pages (from-to)	371-376
Number of pages	6
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	314
Issue number	1
DOIs	https://doi.org/10.1007/s10967-017-5365-0
State	Published - Oct 1 2017

Funding

This research was sponsored by the Office of Nuclear Energy, U.S. Department of Energy. One author (K.T.) would like to thank the Tennessee Technological University Student Research Grant Program for support. Thank you to Melissa Friedrich for her helpful edits.

Funders	Funder number
Tennessee Technological University
U.S. Department of Energy
Office of Nuclear Energy

Keywords

Bis-1,2,4-triazinyl pyridines
CA-BTP
Extraction chromatography
Lanthanide-actinide separations
Minor actinides

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10.1007/s10967-017-5365-0

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title = "Chromatographic separation of americium from europium using bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine",

abstract = "The separation of americium(III) from europium(III) was achieved utilizing a bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine (CA-BTP) chromatographic resin. The extraction chromatographic materials were prepared using various concentrations of CA-BTP. This new, hydrolytically stable extractant was impregnated on an inert polymeric support at 40% loading. The uptake of Am(III) and Eu(III) by this material from 0.1 to 4.0 M aqueous HNO3 solutions was measured. The resulting dry weight distribution ratios, Dw, indicated a strong preference for Am(III) with little affinity for Eu(III). These results are similar to recently reported solvent extraction studies indicating a maximum uptake of Am(III) in the 0.5–1.0 M HNO3 range. The resin preparation, performance, and characterization of the Am/Eu separation are reported herein.",

keywords = "Bis-1,2,4-triazinyl pyridines, CA-BTP, Extraction chromatography, Lanthanide-actinide separations, Minor actinides",

author = "Tevepaugh, {Kayron N.} and Janet Coonce and Serene Tai and Delmau, {L{\ae}titia H.} and Carrick, {Jesse D.} and Ensor, {Dale D.}",

note = "Publisher Copyright: {\textcopyright} 2017, Akad{\'e}miai Kiad{\'o}, Budapest, Hungary.",

year = "2017",

month = oct,

day = "1",

doi = "10.1007/s10967-017-5365-0",

language = "English",

volume = "314",

pages = "371--376",

journal = "Journal of Radioanalytical and Nuclear Chemistry",

issn = "0236-5731",

publisher = "Akad{\'e}miai Kiad{\'o}",

number = "1",

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Chromatographic separation of americium from europium using bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine. / Tevepaugh, Kayron N.; Coonce, Janet; Tai, Serene et al.
In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 314, No. 1, 01.10.2017, p. 371-376.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Chromatographic separation of americium from europium using bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine

AU - Tevepaugh, Kayron N.

AU - Coonce, Janet

AU - Tai, Serene

AU - Delmau, Lætitia H.

AU - Carrick, Jesse D.

AU - Ensor, Dale D.

PY - 2017/10/1

Y1 - 2017/10/1

N2 - The separation of americium(III) from europium(III) was achieved utilizing a bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine (CA-BTP) chromatographic resin. The extraction chromatographic materials were prepared using various concentrations of CA-BTP. This new, hydrolytically stable extractant was impregnated on an inert polymeric support at 40% loading. The uptake of Am(III) and Eu(III) by this material from 0.1 to 4.0 M aqueous HNO3 solutions was measured. The resulting dry weight distribution ratios, Dw, indicated a strong preference for Am(III) with little affinity for Eu(III). These results are similar to recently reported solvent extraction studies indicating a maximum uptake of Am(III) in the 0.5–1.0 M HNO3 range. The resin preparation, performance, and characterization of the Am/Eu separation are reported herein.

AB - The separation of americium(III) from europium(III) was achieved utilizing a bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine (CA-BTP) chromatographic resin. The extraction chromatographic materials were prepared using various concentrations of CA-BTP. This new, hydrolytically stable extractant was impregnated on an inert polymeric support at 40% loading. The uptake of Am(III) and Eu(III) by this material from 0.1 to 4.0 M aqueous HNO3 solutions was measured. The resulting dry weight distribution ratios, Dw, indicated a strong preference for Am(III) with little affinity for Eu(III). These results are similar to recently reported solvent extraction studies indicating a maximum uptake of Am(III) in the 0.5–1.0 M HNO3 range. The resin preparation, performance, and characterization of the Am/Eu separation are reported herein.

KW - Bis-1,2,4-triazinyl pyridines

KW - CA-BTP

KW - Extraction chromatography

KW - Lanthanide-actinide separations

KW - Minor actinides

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U2 - 10.1007/s10967-017-5365-0

DO - 10.1007/s10967-017-5365-0

M3 - Article

AN - SCOPUS:85026918946

SN - 0236-5731

VL - 314

SP - 371

EP - 376

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

IS - 1

ER -

Chromatographic separation of americium from europium using bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine

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