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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 HNO 3 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 HNO 3 range. The resin preparation, performance, and characterization of the Am/Eu separation are reported herein.

Authors:
ORCiD logo [1];  [2];  [2];  [3];  [2];  [2]
  1. Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Chemistry; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Separations Group
  2. Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Chemistry
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Separations Group
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1393814
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 314; Journal Issue: 1; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; Extraction chromatography; Lanthanide-actinide separations; Minor actinides; CA-BTP; Bis-1,2,4-triazinyl pyridines

Citation Formats

Tevepaugh, Kayron N., Coonce, Janet, Tai, Serene, Delmau, Lætitia H., Carrick, Jesse D., and Ensor, Dale D. 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. United States: N. p., 2017. Web. doi:10.1007/s10967-017-5365-0.
Tevepaugh, Kayron N., Coonce, Janet, Tai, Serene, Delmau, Lætitia H., Carrick, Jesse D., & Ensor, Dale D. 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. United States. doi:10.1007/s10967-017-5365-0.
Tevepaugh, Kayron N., Coonce, Janet, Tai, Serene, Delmau, Lætitia H., Carrick, Jesse D., and Ensor, Dale D. Thu . "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". United States. doi:10.1007/s10967-017-5365-0.
@article{osti_1393814,
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},
author = {Tevepaugh, Kayron N. and Coonce, Janet and Tai, Serene and Delmau, Lætitia H. and Carrick, Jesse D. and Ensor, Dale D.},
abstractNote = {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.},
doi = {10.1007/s10967-017-5365-0},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
issn = {0236-5731},
number = 1,
volume = 314,
place = {United States},
year = {2017},
month = {7}
}

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