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Title: Oxidation and extraction of Am(VI) using a monoamidic extractant in 3D printed centrifugal contactors

Abstract

In this study, a series of tests were performed using centrifugal contactors to evaluate the separation of Am(VI) from cerium, as well as to determine the efficiency of the contactors. All experiments were performed using 2-cm, acrylic 3D-printed centrifugal contactors. Solvent extraction tests were performed using 1 M N,N-di(2-ethylhexyl)butyramide (DEHBA)/dodecane and a nitric acid feed solution spiked with 243Am and 139Ce and oxidized with 60 mg mL -1 sodium bismuthate. Approximately 72 % of the Am was extracted with a single contactor stage. Co-stripping of Am and Ce was demonstrated but attempts at selective stripping were not successful. Lastly, successful recycle of the used organic phase was demonstrated. Contactor efficiencies of 95-100% were obtained.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1572465
Alternate Identifier(s):
OSTI ID: 1556083
Report Number(s):
INL-CON-18-50163-Rev000; INL/JOU-18-44740-Rev000
Journal ID: ISSN 0236-5731
Grant/Contract Number:  
AC07-05ID14517
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 318; Journal Issue: 1; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; Americium; oxidation; extraction; Centrifugal contactors; Minor actinides; Sodium bismuthate; Solvent extraction; 3D printing; DEHBA; Americium(VI)

Citation Formats

Law, Jack D., Mincher, Bruce J., Tillotson, Richard. D., Schmitt, Nicholas C., and Grimes, Travis S. Oxidation and extraction of Am(VI) using a monoamidic extractant in 3D printed centrifugal contactors. United States: N. p., 2018. Web. doi:10.1007/s10967-018-6126-4.
Law, Jack D., Mincher, Bruce J., Tillotson, Richard. D., Schmitt, Nicholas C., & Grimes, Travis S. Oxidation and extraction of Am(VI) using a monoamidic extractant in 3D printed centrifugal contactors. United States. doi:10.1007/s10967-018-6126-4.
Law, Jack D., Mincher, Bruce J., Tillotson, Richard. D., Schmitt, Nicholas C., and Grimes, Travis S. Mon . "Oxidation and extraction of Am(VI) using a monoamidic extractant in 3D printed centrifugal contactors". United States. doi:10.1007/s10967-018-6126-4. https://www.osti.gov/servlets/purl/1572465.
@article{osti_1572465,
title = {Oxidation and extraction of Am(VI) using a monoamidic extractant in 3D printed centrifugal contactors},
author = {Law, Jack D. and Mincher, Bruce J. and Tillotson, Richard. D. and Schmitt, Nicholas C. and Grimes, Travis S.},
abstractNote = {In this study, a series of tests were performed using centrifugal contactors to evaluate the separation of Am(VI) from cerium, as well as to determine the efficiency of the contactors. All experiments were performed using 2-cm, acrylic 3D-printed centrifugal contactors. Solvent extraction tests were performed using 1 M N,N-di(2-ethylhexyl)butyramide (DEHBA)/dodecane and a nitric acid feed solution spiked with 243Am and 139Ce and oxidized with 60 mg mL-1 sodium bismuthate. Approximately 72 % of the Am was extracted with a single contactor stage. Co-stripping of Am and Ce was demonstrated but attempts at selective stripping were not successful. Lastly, successful recycle of the used organic phase was demonstrated. Contactor efficiencies of 95-100% were obtained.},
doi = {10.1007/s10967-018-6126-4},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 1,
volume = 318,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Fig. 1 Fig. 1: 2-cm 3D printed centrifugal contactors used for Am(VI) solvent extraction testing

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Works referenced in this record:

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