1
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Leng D, Fu Q, Ge Y, He C, Lv Y, Li X. Cs + Promoting the Diffusion of K + and Inhibiting the Generation of Newberyite in Struvite-K Cements: Experiments and Molecular Dynamics Simulation Calculations. MATERIALS (BASEL, SWITZERLAND) 2024; 17:814. [PMID: 38399065 PMCID: PMC10890217 DOI: 10.3390/ma17040814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/25/2024]
Abstract
Struvite-K cements, also called magnesium potassium phosphate cements (MKPCs), are applicable for particular applications, especially the immobilization of radioactive Cs+ in the nuclear industry. This work focuses on how Cs+ affects the hydration mechanism of struvite-K cements because newberyite and brucite in the hydration products are deemed to be risky products that result in cracking. Experiments and molecular dynamics simulations showed that Cs+ promoted the diffusion of K+ to the surface of MgO, which greatly facilitates the formation of more K-struvite crystals, inhibiting the formation of newberyite and brucite. A total of 0.02 M Cs+ resulted in a 40.44%, 13.93%, 60.81%, and 32.18% reduction in the amount of newberyite and brucite, and the Cs immobilization rates were 99.07%, 99.84%, 99.87%, and 99.83% when the ratios of Mg/P were 1, 3, 5, and 7, respectively. This provides new evidence of stability for struvite-K cements on radioactive Cs+ immobilization. Surprisingly, another new crystal, [CsPO3·H2O]4, was found to be a dominating Cs-containing phase in Cs-immobilizing struvite-K cements, in addition to Cs-struvite.
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Affiliation(s)
- Difei Leng
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Qiuyan Fu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Yunlu Ge
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Chenhao He
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Yang Lv
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Xiangguo Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
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2
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Kido K, Kaneko M. Conformation, hydration, and ligand exchange process of ruthenium nitrosyl complexes in aqueous solution: Free-energy calculations by a combination of molecular-orbital theories and different solvent models. J Comput Chem 2023; 44:546-558. [PMID: 36205560 DOI: 10.1002/jcc.27021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/07/2022] [Accepted: 09/14/2022] [Indexed: 01/07/2023]
Abstract
Distribution of solvent molecules near transition-metal complex is key information to comprehend the functionality, reactivity, and so forth. However, polarizable continuum solvent models still are the standard and conventional partner of molecular-orbital (MO) calculations in the solution system including transition-metal complex. In this study, we investigate the conformation, hydration, and ligand substitution reaction between NO2 - and H2 O in aqueous solution for [Ru(NO)(OH)(NO2 )4 ]2- (A), [Ru(NO)(OH)(NO2 )3 (ONO)]2- (B), and [Ru(NO)(OH)(NO2 )3 (H2 O)]- (C) using a combination method of MO theories and a state-of-the-art molecular solvation technique (NI-MC-MOZ-SCF). A dominant species is found in the complex B conformers and, as expected, different between the solvent models, which reveals that molecular solvation beyond continuum media treatment are required for a reliable description of solvation near transition-metal complex. In the stability constant evaluation of ligand substitution reaction, an assumption that considers the direct association between the dissociated NO2 - and complex C is useful to obtain a reliable stability constant.
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Affiliation(s)
- Kentaro Kido
- Nuclear Safety Research Center, Japan Atomic Energy Agency, Tokai-mura Naka-gun, Japan
| | - Masashi Kaneko
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai-mura Naka-gun, Japan
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3
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Ouf FX, Andrade MDM, Feuchter H, Duval S, Volkringer C, Loiseau T, Salm F, Ainé P, Cantrel L, Gil-Martin A, Hurel F, Lavalette C, March P, Nerisson P, Nos J, Bouilloux L. Airborne Release Fraction of Dissolved Materials During the Combustion of Liquids Representatives of Nuclear Waste Treatment Process. NUCL TECHNOL 2022. [DOI: 10.1080/00295450.2022.2129274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- F. -X. Ouf
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES/SCA, PSN-RES/SA2I, PSN-RES/SEREX, Gif-Sur-Yvette, 91192, France
| | - M. De Mendonca Andrade
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES/SCA, PSN-RES/SA2I, PSN-RES/SEREX, Gif-Sur-Yvette, 91192, France
| | - H. Feuchter
- Université de Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - S. Duval
- Université de Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - C. Volkringer
- Université de Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
- Institut Universitaire de France (IUF), 1, rue Descartes, 75231 Paris cedex 05, France
| | - T. Loiseau
- Université de Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - F. Salm
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES/SCA, PSN-RES/SA2I, PSN-RES/SEREX, Gif-Sur-Yvette, 91192, France
| | - P. Ainé
- Orano, 125 Avenue de Paris, 92320 Châtillon, France
| | - L. Cantrel
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES/SCA, PSN-RES/SA2I, PSN-RES/SEREX, Gif-Sur-Yvette, 91192, France
| | | | - F. Hurel
- AREXIS Falandre 61380 Mahéru, France
| | - C. Lavalette
- Orano, 125 Avenue de Paris, 92320 Châtillon, France
| | - P. March
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES/SCA, PSN-RES/SA2I, PSN-RES/SEREX, Gif-Sur-Yvette, 91192, France
| | - P. Nerisson
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES/SCA, PSN-RES/SA2I, PSN-RES/SEREX, Gif-Sur-Yvette, 91192, France
| | - J. Nos
- Orano, 125 Avenue de Paris, 92320 Châtillon, France
| | - L. Bouilloux
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES/SCA, PSN-RES/SA2I, PSN-RES/SEREX, Gif-Sur-Yvette, 91192, France
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4
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Guo Z, Tang J, Yang Y, Lin Y, Chen G, Jiao L, Lu J, Lin M. Mathematical modeling of the co-decontamination process in PUREX. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08377-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Wilden A, Schneider D, Paparigas Z, Henkes M, Kreft F, Geist A, Mossini E, Macerata E, Mariani M, Gullo MC, Casnati A, Modolo G. Selective actinide(III) separation using 2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine (PyTri-Diol) in the innovative-SANEX process: laboratory scale counter current centrifugal contactor demonstration. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2022-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
An innovative-SANEX process for the selective separation of the trivalent actinides americium and curium from a simulated PUREX raffinate solution was successfully demonstrated on the laboratory scale using a 16-stage 1 cm annular centrifugal contactor setup. The solvent was composed of 0.2 mol L−1
N,N,N′,N′-tetra-n-octyl-diglycolamide (TODGA) and 5% v/v 1-octanol in a kerosene diluent. Zr(IV) and Pd(II) co-extraction was prevented using trans-1,2-diaminocyclohexane-N,N,N′,N′-tetraacetic acid (CDTA) as a masking agent in the feed. The actinide(III) selective back-extraction was achieved using 2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine (PyTri-Diol) in 0.45 mol L−1 HNO3 as a CHON alternative to the sulfur-containing stripping agent used in a previous version of the innovative-SANEX process. The new process described in this paper showed excellent performance for the recovery of An(III). An An(III) product with a quasi-quantitative recovery of americium and curium (≥99.9%) and very good separation from fission and activation products was obtained (decontamination factors ≥4000). Only a slight contamination with Zr and Ru was observed. This test demonstrates the successful use of molecules containing only carbon, hydrogen, oxygen, and nitrogen atoms (so-called CHON molecules) for the selective separation of An(III) from a simulated PUREX raffinate solution. By avoiding sulfur- or phosphorous-containing molecules, the generation of secondary radioactive waste during process operation can be reduced drastically.
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Affiliation(s)
- Andreas Wilden
- Forschungszentrum Jülich GmbH, Institut für Energie – und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit (IEK-6) , 52428 Jülich , Germany
| | - Dimitri Schneider
- Forschungszentrum Jülich GmbH, Institut für Energie – und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit (IEK-6) , 52428 Jülich , Germany
| | - Zaina Paparigas
- Forschungszentrum Jülich GmbH, Institut für Energie – und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit (IEK-6) , 52428 Jülich , Germany
| | - Maximilian Henkes
- Forschungszentrum Jülich GmbH, Institut für Energie – und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit (IEK-6) , 52428 Jülich , Germany
| | - Fabian Kreft
- Forschungszentrum Jülich GmbH, Institut für Energie – und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit (IEK-6) , 52428 Jülich , Germany
| | - Andreas Geist
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE) , 76021 Karlsruhe , Germany
| | - Eros Mossini
- Department of Energy, Politecnico di Milano , 20133 Milano , Italy
| | - Elena Macerata
- Department of Energy, Politecnico di Milano , 20133 Milano , Italy
| | - Mario Mariani
- Department of Energy, Politecnico di Milano , 20133 Milano , Italy
| | - Maria Chiara Gullo
- Department of Chemistry , Università di Parma, Life Sciences and Environmental Sustainability , 43124 Parma , Italy
| | - Alessandro Casnati
- Department of Chemistry , Università di Parma, Life Sciences and Environmental Sustainability , 43124 Parma , Italy
| | - Giuseppe Modolo
- Forschungszentrum Jülich GmbH, Institut für Energie – und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit (IEK-6) , 52428 Jülich , Germany
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6
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Highly Efficient Recovery of Ruthenium from Aqueous Solutions by Adsorption Using Dibenzo-30-Crown-10 Doped Chitosan. Polymers (Basel) 2022; 14:polym14081551. [PMID: 35458298 PMCID: PMC9030289 DOI: 10.3390/polym14081551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/25/2022] [Accepted: 04/06/2022] [Indexed: 12/10/2022] Open
Abstract
Ruthenium, as an industrial by-product or from natural sources, represents an important economical resource due to its specific applications. A complex problem is represented by ruthenium separation during reprocessing operations, therefore, different materials and methods have been proposed. The present study aims to develop a new material with good adsorbent properties able to be used for ruthenium recovery by adsorption from aqueous solutions. Absorbent material was obtained using chitosan (Ch) surface modification with dibenzo-30-crown-10 ether (DB30C10). Chitosan represents a well-known biopolymer with applicability in different adsorptive processes due to the presence of hydroxyl-, carboxyl-, and nitrogen-containing groups in the structure. Additionally, crown ethers are macromolecules with a good complexation capacity for metallic ions. It is expected that the adsorptive efficiency of newly prepared material will be superior to that of the individual components. New synthesized material was characterized using scanning electron microscopy coupled with energy dispersive X-ray (SEM–EDX), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmett–Teller surface area analysis (BET), and determination of point of zero charge (pZc). Results obtained from the performed kinetic, thermodynamic, and equilibrium studies confirmed the good adsorptive capacity of the prepared material, Ch-DB30C10, obtaining a maximum adsorption capacity of 52 mg Ru(III) per gram. This adsorption capacity was obtained using a solution with an initial concentration of 275 mg L−1, at pH 2, and 298 K. Ru(III) adsorption kinetics were studied by modeling the obtained experimental data with pseudo-first order and pseudo-second order models. Desorption studies established that the optimum eluent was represented by the 5M HNO3 solution. Based on the performed studies, a mechanism for recovery of ruthenium by adsorption was proposed.
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7
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Lyseid Authen T, Adnet JM, Bourg S, Carrott M, Ekberg C, Galán H, Geist A, Guilbaud P, Miguirditchian M, Modolo G, Rhodes C, Wilden A, Taylor R. An overview of solvent extraction processes developed in Europe for advanced nuclear fuel recycling, Part 2 — homogeneous recycling. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.2001531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Thea Lyseid Authen
- Nuclear Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Jean-Marc Adnet
- French Alternative Energies and Atomic Energy Commission, CEA/DES/ISEC, Univ, Montpellier, France
| | - Stéphane Bourg
- French Alternative Energies and Atomic Energy Commission, CEA/DES/ISEC, Univ, Montpellier, France
| | - Michael Carrott
- Fuels, Reactors and Reprocessing (FRR) National Nuclear Laboratory, Central Laboratory, Seascale, UK
| | - Christian Ekberg
- Nuclear Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Hitos Galán
- High Level Waste Unit (URRAA) Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - Andreas Geist
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), Karlsruhe, Germany
| | - Philippe Guilbaud
- French Alternative Energies and Atomic Energy Commission, CEA/DES/ISEC, Univ, Montpellier, France
| | - Manuel Miguirditchian
- French Alternative Energies and Atomic Energy Commission, CEA/DES/ISEC, Univ, Montpellier, France
| | - Giuseppe Modolo
- Forschungszentrum Jülich GmbH (FZJ), Institut für Energie- und Klimaforschung, Nukleare Entsorgung und Reaktorsicherheit (IEK-6), Jülich, Germany
| | - Chris Rhodes
- Fuels, Reactors and Reprocessing (FRR) National Nuclear Laboratory, Central Laboratory, Seascale, UK
| | - Andreas Wilden
- Forschungszentrum Jülich GmbH (FZJ), Institut für Energie- und Klimaforschung, Nukleare Entsorgung und Reaktorsicherheit (IEK-6), Jülich, Germany
| | - Robin Taylor
- Fuels, Reactors and Reprocessing (FRR) National Nuclear Laboratory, Central Laboratory, Seascale, UK
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8
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Verma PK, Mohapatra PK. Ruthenium speciation in radioactive wastes and state-of-the-art strategies for its recovery: A review. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Špadina M, Dourdain S, Rey J, Bohinc K, Pellet-Rostaing S, Dufrêche JF, Zemb T. How acidity rules synergism and antagonism in liquid–liquid extraction by lipophilic extractants—Part II: application of the ienaic modelling. SOLVENT EXTRACTION AND ION EXCHANGE 2021. [DOI: 10.1080/07366299.2021.1899614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- M. Špadina
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
- Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - S. Dourdain
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
| | - J. Rey
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
| | - K. Bohinc
- Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | | | | | - T. Zemb
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
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10
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Dirks T, Dumas T, Guillaumont D, Charbonnel MC. Coupling Raman spectroscopy and DFT study for enhanced description of nitrosyl nitrato nitrite ruthenium(III) complexes in nitric acid. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07402-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Thevenet A, Marie C, Tamain C, Guilbaud P. 2,2’-bipyridine as a masking agent of ruthenium in the PUREX process. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1789879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Cecile Marie
- CEA, DES, ISEC, DMRC, University of Montpellier, Marcoule, France
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12
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Špadina M, Bohinc K. Multiscale modeling of solvent extraction and the choice of reference state: Mesoscopic modeling as a bridge between nanoscale and chemical engineering. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2020.03.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Zhang Y, Li J, Jin Y, Chen M, Wang Y. Determination of kinetic parameters of homogenous continuous flow esterification of monobutyl chlorophosphate in a microreactor. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yuqiang Zhang
- Department of Chemical Engineering Sichuan University Chengdu China
| | - Jun Li
- Department of Chemical Engineering Sichuan University Chengdu China
| | - Yang Jin
- Department of Chemical Engineering Sichuan University Chengdu China
| | - Ming Chen
- Department of Chemical Engineering Sichuan University Chengdu China
| | - Yubin Wang
- Department of Chemical Engineering Sichuan University Chengdu China
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14
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Dirks T, Dumas T, Solari PL, Charbonnel MC. Ruthenium Nitrosyl Structure in Solvent Extraction Systems: A Comparison of Tributyl Phosphate, Tetrabutyl Urea, N-Methyl, N-Octyl Ethylhexanamide, and N, N, N′, N′-Tetraoctyl Diglycolamide. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02555] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas Dirks
- CEA, DEN, DMRC, Univ Montpellier, Marcoule, France
| | - Thomas Dumas
- CEA, DEN, DMRC, Univ Montpellier, Marcoule, France
| | - Pier Lorenzo Solari
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, St Aubin, 91192, Gif sur Yvette, France
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15
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Malmbeck R, Magnusson D, Bourg S, Carrott M, Geist A, Hérès X, Miguirditchian M, Modolo G, Müllich U, Sorel C, Taylor R, Wilden A. Homogenous recycling of transuranium elements from irradiated fast reactor fuel by the EURO-GANEX solvent extraction process. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2018-3089] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The EURO-GANEX process was developed for co-separating transuranium elements from irradiated nuclear fuels. A hot flow-sheet trial was performed in a counter-current centrifugal contactor setup, using a genuine high active feed solution. Irradiated mixed (carbide, nitride) U80Pu20 fast reactor fuel containing 20 % Pu was thermally treated to oxidise it to the oxide form which was then dissolved in HNO3. From this solution uranium was separated to >99.9 % in a primary solvent extraction cycle using 1.0 mol/L DEHiBA (N,N-di(2-ethylhexyl)isobutyramide in TPH (hydrogenated tetrapropene) as the organic phase. The raffinate solution from this process, containing 10 g/L Pu, was further processed in a second cycle of solvent extraction. In this EURO-GANEX flow-sheet, TRU and fission product lanthanides were firstly co-extracted into a solvent composed of 0.2 mol/L TODGA (N,N,N′,N′-tetra-n-octyl diglycolamide) and 0.5 mol/L DMDOHEMA (N,N′-dimethyl-N,N′-dioctyl-2-(2-hexyloxy-ethyl) malonamide) dissolved in Exxsol D80, separating them from most other fission and corrosion products. Subsequently, the TRU were selectively stripped from the collected loaded solvent using a solution containing 0.055 mol/L SO3-Ph-BTP (2,6-bis(5,6-di(3-sulphophenyl)-1,2,4-triazin-3-yl)pyridine tetrasodium salt) and 1 mol/L AHA (acetohydroxamic acid) in 0.5 mol/L HNO3; lanthanides were finally stripped using 0.01 mol/L HNO3. Approximately 99.9 % of the TRU and less than 0.1 % of the lanthanides were found in the product solution, which also contained the major fractions of Zr and Mo.
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Affiliation(s)
- Rikard Malmbeck
- European Commission, DG Joint Research Centre, Directorate G , Karlsruhe , Germany
| | - Daniel Magnusson
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE) , Karlsruhe , Germany
| | - Stéphane Bourg
- French Alternative Energies and Atomic Energy Commission, Nuclear Energy Division, Research Department on Mining and Fuel Recycling Processes, CEA Marcoule , Bagnols sur Cèze , France
| | - Michael Carrott
- National Nuclear Laboratory, Central Laboratory , Sellafield, Seascale, CA20 1PG , UK
| | - Andreas Geist
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE) , Karlsruhe , Germany
| | - Xavier Hérès
- French Alternative Energies and Atomic Energy Commission, Nuclear Energy Division, Research Department on Mining and Fuel Recycling Processes, CEA Marcoule , Bagnols sur Cèze , France
| | - Manuel Miguirditchian
- French Alternative Energies and Atomic Energy Commission, Nuclear Energy Division, Research Department on Mining and Fuel Recycling Processes, CEA Marcoule , Bagnols sur Cèze , France
| | - Giuseppe Modolo
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit , Jülich , Germany
| | - Udo Müllich
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE) , Karlsruhe , Germany
| | - Christian Sorel
- French Alternative Energies and Atomic Energy Commission, Nuclear Energy Division, Research Department on Mining and Fuel Recycling Processes, CEA Marcoule , Bagnols sur Cèze , France
| | - Robin Taylor
- National Nuclear Laboratory, Central Laboratory , Sellafield, Seascale, CA20 1PG , UK
| | - Andreas Wilden
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung – Nukleare Entsorgung und Reaktorsicherheit , Jülich , Germany
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16
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Lefebvre C, Dumas T, Tamain C, Ducres T, Solari PL, Charbonnel MC. Addressing Ruthenium Speciation in Tri-n-butyl-phosphate Solvent Extraction Process by Fourier Transform Infrared, Extended X-ray Absorption Fine Structure, and Single Crystal X-ray Diffraction. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02973] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Claire Lefebvre
- Nuclear
Energy Division, Research Department on Mining and fuel Recycling
Processes, CEA, BP17171, F-30207 Bagnols-sur-Cèze, France
| | - Thomas Dumas
- Nuclear
Energy Division, Research Department on Mining and fuel Recycling
Processes, CEA, BP17171, F-30207 Bagnols-sur-Cèze, France
| | - Christelle Tamain
- Nuclear
Energy Division, Research Department on Mining and fuel Recycling
Processes, CEA, BP17171, F-30207 Bagnols-sur-Cèze, France
| | - Tracy Ducres
- Nuclear
Energy Division, Research Department on Mining and fuel Recycling
Processes, CEA, BP17171, F-30207 Bagnols-sur-Cèze, France
| | - Pier Lorenzo Solari
- Synchrotron
SOLEIL, L’Orme des Merisiers,
BP 48, St Aubin, 91192 Gif sur Yvette, France
| | - Marie-Christine Charbonnel
- Nuclear
Energy Division, Research Department on Mining and fuel Recycling
Processes, CEA, BP17171, F-30207 Bagnols-sur-Cèze, France
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