Solvent Optimization Studies for a New EURO- GANEX Process with 2,2’-Oxybis(N,N-di-ndecylpropanamide) (mTDDGA) and Its Radiolysis Products

Bart Verlinden; Andreas Wilden; Karen Van Hecke; Richard J.M. Egberink; Jurriaan Huskens; Willem Verboom; Michelle Hupert; Patrik Weßling; Andreas Geist; Petra J. Panak; Rainier Hermans; Marc Verwerft; Giuseppe Modolo; Koen Binnemans; Thomas Cardinaels

doi:10.1080/07366299.2022.2125151

Solvent Optimization Studies for a New EURO- GANEX Process with 2,2’-Oxybis(N,N-di-ndecylpropanamide) (mTDDGA) and Its Radiolysis Products

Bart Verlinden, Andreas Wilden, Karen Van Hecke, Richard J.M. Egberink, Jurriaan Huskens, Willem Verboom, Michelle Hupert, Patrik Weßling, Andreas Geist, Petra J. Panak, Rainier Hermans, Marc Verwerft, Giuseppe Modolo, Koen Binnemans, Thomas Cardinaels

Research output › peer-review

Abstract

The diglycolamide 2,2’-oxybis(N,N-di-n-decylpropanamide) (mTDDGA) is being studied as an extractant for actinides and lanthanides in the European Grouped Actinide Extraction (EURO-GANEX) process. The aim is the development of a more simplified process using a single extractant instead of a mixture of extractants used in the current EURO-GANEX process. This work presents solvent optimization studies of mTDDGA, with regards to the extraction characteristics of the different diastereomers of mTDGA and of mixed diastereomer solutions. Also radiolysis behavior has been studied by irradiation of solvent extraction systems in a gamma irradiation facility using ⁶⁰Co. The availability of irradiated organic solutions made it possible to gain valuable insights into the plutonium loading capacity after gamma-irradiation of the solvent up to 445 kGy and to quantify degradation compounds. Solvent extraction characteristic of the major degradation compounds themselves were determined. Like other methylated diglycolamides, we found a remarkable difference in extraction of up to two orders of magnitude between the two diastereomers. High plutonium loading (36 g L ⁻¹) is feasible using this single extractant, even after absorbing a dose of 445 kGy. This remarkable observation is possibly promoted by the presence of the main degradation compound which extracts plutonium verywell.

Original language	English
Pages (from-to)	59-87
Number of pages	29
Journal	Solvent extraction and ion exchange
Volume	41
Issue number	1
DOIs	https://doi.org/10.1080/07366299.2022.2125151
State	Published - Jan 2023

ASJC Scopus subject areas

Chemical Engineering(all)
Chemistry(all)

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Verlinden, B., Wilden, A., Van Hecke, K., Egberink, R. J. M., Huskens, J., Verboom, W., Hupert, M., Weßling, P., Geist, A., Panak, P. J., Hermans, R., Verwerft, M., Modolo, G., Binnemans, K., & Cardinaels, T. (2023). Solvent Optimization Studies for a New EURO- GANEX Process with 2,2’-Oxybis(N,N-di-ndecylpropanamide) (mTDDGA) and Its Radiolysis Products. Solvent extraction and ion exchange, 41(1), 59-87. https://doi.org/10.1080/07366299.2022.2125151

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title = "Solvent Optimization Studies for a New EURO- GANEX Process with 2,2{\textquoteright}-Oxybis(N,N-di-ndecylpropanamide) (mTDDGA) and Its Radiolysis Products",

abstract = "The diglycolamide 2,2{\textquoteright}-oxybis(N,N-di-n-decylpropanamide) (mTDDGA) is being studied as an extractant for actinides and lanthanides in the European Grouped Actinide Extraction (EURO-GANEX) process. The aim is the development of a more simplified process using a single extractant instead of a mixture of extractants used in the current EURO-GANEX process. This work presents solvent optimization studies of mTDDGA, with regards to the extraction characteristics of the different diastereomers of mTDGA and of mixed diastereomer solutions. Also radiolysis behavior has been studied by irradiation of solvent extraction systems in a gamma irradiation facility using 60Co. The availability of irradiated organic solutions made it possible to gain valuable insights into the plutonium loading capacity after gamma-irradiation of the solvent up to 445 kGy and to quantify degradation compounds. Solvent extraction characteristic of the major degradation compounds themselves were determined. Like other methylated diglycolamides, we found a remarkable difference in extraction of up to two orders of magnitude between the two diastereomers. High plutonium loading (36 g L −1) is feasible using this single extractant, even after absorbing a dose of 445 kGy. This remarkable observation is possibly promoted by the presence of the main degradation compound which extracts plutonium verywell.",

keywords = "Solvent Extraction, Radiolysis, GANEX, Diglycolamides, Solvent optimization",

author = "Bart Verlinden and Andreas Wilden and {Van Hecke}, Karen and Egberink, {Richard J.M.} and Jurriaan Huskens and Willem Verboom and Michelle Hupert and Patrik We{\ss}ling and Andreas Geist and Panak, {Petra J.} and Rainier Hermans and Marc Verwerft and Giuseppe Modolo and Koen Binnemans and Thomas Cardinaels",

note = "Score=10 Funding Information: This work has been partially supported by the ENEN+ project that has received funding from the Euratom research and training Work Programme 2016–2017–1#755576. Financial support for this research was provided by the H2020 Euratom Research and Innovation Programme under grant agreement n°755171 (project GENIORS). The author would like to acknowledge input from discussion within the European GENIORS project. B.V. acknowledges the SCK CEN Academy for providing funding for a PhD fellowship. Publisher Copyright: {\textcopyright} 2022 SCK CEN. Published with license by Taylor & Francis Group, LLC.",

year = "2023",

month = jan,

doi = "10.1080/07366299.2022.2125151",

language = "English",

volume = "41",

pages = "59--87",

journal = "Solvent extraction and ion exchange",

issn = "1532-2262",

publisher = "Taylor & Francis (CRC)",

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Verlinden, B, Wilden, A, Van Hecke, K, Egberink, RJM, Huskens, J, Verboom, W, Hupert, M, Weßling, P, Geist, A, Panak, PJ, Hermans, R, Verwerft, M, Modolo, G, Binnemans, K & Cardinaels, T 2023, 'Solvent Optimization Studies for a New EURO- GANEX Process with 2,2’-Oxybis(N,N-di-ndecylpropanamide) (mTDDGA) and Its Radiolysis Products', Solvent extraction and ion exchange, vol. 41, no. 1, pp. 59-87. https://doi.org/10.1080/07366299.2022.2125151

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T1 - Solvent Optimization Studies for a New EURO- GANEX Process with 2,2’-Oxybis(N,N-di-ndecylpropanamide) (mTDDGA) and Its Radiolysis Products

AU - Verlinden, Bart

AU - Wilden, Andreas

AU - Van Hecke, Karen

AU - Egberink, Richard J.M.

AU - Huskens, Jurriaan

AU - Verboom, Willem

AU - Hupert, Michelle

AU - Weßling, Patrik

AU - Geist, Andreas

AU - Panak, Petra J.

AU - Hermans, Rainier

AU - Verwerft, Marc

AU - Modolo, Giuseppe

AU - Binnemans, Koen

AU - Cardinaels, Thomas

N1 - Score=10 Funding Information: This work has been partially supported by the ENEN+ project that has received funding from the Euratom research and training Work Programme 2016–2017–1#755576. Financial support for this research was provided by the H2020 Euratom Research and Innovation Programme under grant agreement n°755171 (project GENIORS). The author would like to acknowledge input from discussion within the European GENIORS project. B.V. acknowledges the SCK CEN Academy for providing funding for a PhD fellowship. Publisher Copyright: © 2022 SCK CEN. Published with license by Taylor & Francis Group, LLC.

PY - 2023/1

Y1 - 2023/1

N2 - The diglycolamide 2,2’-oxybis(N,N-di-n-decylpropanamide) (mTDDGA) is being studied as an extractant for actinides and lanthanides in the European Grouped Actinide Extraction (EURO-GANEX) process. The aim is the development of a more simplified process using a single extractant instead of a mixture of extractants used in the current EURO-GANEX process. This work presents solvent optimization studies of mTDDGA, with regards to the extraction characteristics of the different diastereomers of mTDGA and of mixed diastereomer solutions. Also radiolysis behavior has been studied by irradiation of solvent extraction systems in a gamma irradiation facility using 60Co. The availability of irradiated organic solutions made it possible to gain valuable insights into the plutonium loading capacity after gamma-irradiation of the solvent up to 445 kGy and to quantify degradation compounds. Solvent extraction characteristic of the major degradation compounds themselves were determined. Like other methylated diglycolamides, we found a remarkable difference in extraction of up to two orders of magnitude between the two diastereomers. High plutonium loading (36 g L −1) is feasible using this single extractant, even after absorbing a dose of 445 kGy. This remarkable observation is possibly promoted by the presence of the main degradation compound which extracts plutonium verywell.

AB - The diglycolamide 2,2’-oxybis(N,N-di-n-decylpropanamide) (mTDDGA) is being studied as an extractant for actinides and lanthanides in the European Grouped Actinide Extraction (EURO-GANEX) process. The aim is the development of a more simplified process using a single extractant instead of a mixture of extractants used in the current EURO-GANEX process. This work presents solvent optimization studies of mTDDGA, with regards to the extraction characteristics of the different diastereomers of mTDGA and of mixed diastereomer solutions. Also radiolysis behavior has been studied by irradiation of solvent extraction systems in a gamma irradiation facility using 60Co. The availability of irradiated organic solutions made it possible to gain valuable insights into the plutonium loading capacity after gamma-irradiation of the solvent up to 445 kGy and to quantify degradation compounds. Solvent extraction characteristic of the major degradation compounds themselves were determined. Like other methylated diglycolamides, we found a remarkable difference in extraction of up to two orders of magnitude between the two diastereomers. High plutonium loading (36 g L −1) is feasible using this single extractant, even after absorbing a dose of 445 kGy. This remarkable observation is possibly promoted by the presence of the main degradation compound which extracts plutonium verywell.

KW - Solvent Extraction

KW - Radiolysis

KW - GANEX

KW - Diglycolamides

KW - Solvent optimization

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/51641798

U2 - 10.1080/07366299.2022.2125151

DO - 10.1080/07366299.2022.2125151

M3 - Article

SN - 1532-2262

VL - 41

SP - 59

EP - 87

JO - Solvent extraction and ion exchange

JF - Solvent extraction and ion exchange

IS - 1

ER -