Výsledky vyhledávání

An Alternative Solvent Extraction Flowsheet for Separating 237Np from 238Pu for Space Power Applications

Autor: M. J. Carrott, C. Mason, R. Sanderson, David Woodhead, Daniel M Whittaker, Mark Sarsfield, Tim Tinsley, Chris J. Maher, Robin J. Taylor

Publikováno v: Solvent Extraction and Ion Exchange. 40:349-365

The production of 238Pu from 237Np, to the specifications required for space flight, requires the separation of plutonium from neptunium and a range of fission products. The valuable neptunium is t...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f707de3c887c11c9f9c2dc3d5a900496
https://doi.org/10.1080/07366299.2021.1939177

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Process intensification of element extraction using centrifugal contactors in the nuclear fuel cycle

Autor: Alastair Baker, Alex Fells, Michael J. Carrott, Chris J. Maher, Bruce C. Hanson

This review focuses on consolidating solvent extraction performed in the process intensification equipment known as Centrifugal Contactors (CCs), implemented in Spent Nuclear Fuel (SNF) reprocessing and radioactive waste processing. Recovery of valua

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24a51d5c31955435827c976a9e33f405
https://eprints.whiterose.ac.uk/186920/6/d2cs00192f.pdf

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Experimental Test of a Process Upset in the EURO-GANEX Process and Spectroscopic Study of the Product

Autor: M. J. Carrott, C. J. Maher, C. Mason, M. J. Sarsfield, D. Whittaker, R. J. Taylor

EURO-GANEX is an innovative hydrometallurgical process for the group separation of transuranic actinides from future spent nuclear fuels. A flowsheet test of a process upset (or ‘maloperation’) has been carried out involving the reduction in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90c6d74f54790b95e04dccd0fae0071e

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Characterisation and heat treatment of chloride-contaminated and humidified PuO2 samples

Autor: Jeff Hobbs, Ian A. Vatter, Robin J. Taylor, Carolyn I. Pearce, Howard E. Sims, Catherine Campbell, Kevin J. Webb, Hannah Colledge, Colin Gregson, Helen Steele, Francis R. Livens, Nikolas Kaltsoyannis, Sophie Sutherland-Harper, Mark Sarsfield, Robin Orr, M. J. Carrott, Louise Walton

Publikováno v: Journal of Nuclear Materials. 509:654-666

To mimic the reactions that have occurred between plutonium dioxide (PuO2) and degraded polyvinyl chloride during prolonged storage, batches of PuO2 powders with varying specific surface area (4–38 m2 g−1) were exposed to dry hydrogen chloride ga

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c4dfced9bec8472f750f9dcd2212b55
https://doi.org/10.1016/j.jnucmat.2018.07.031

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Akademický článek

Recent Developments in the Purex Process for Nuclear Fuel Reprocessing: Complexant Based Stripping for Uranium/Plutonium Separation

Autor: J. Eddie Birkett, Michael J. Carrott, O. Danny Fox, Chris J. Jones, Chris J. Maher, Cécile V. Roube, Robin J. Taylor, David A. Woodhead

Publikováno v: CHIMIA, Vol 59, Iss 12 (2005)

In order to recycle potentially valuable uranium and plutonium, the Purex process has been successfully used to reprocess spent nuclear fuel for several decades now at industrial scales. The process has developed over this period to treat higher burn

Externí odkaz: https://doaj.org/article/203406fd10db457cad64a97703ba3cbf

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Progress towards the Full Recovery of Neptunium in an Advanced PUREX Process

Autor: Robin J. Taylor, Colin Gregson, C. Mason, Mark Sarsfield, M. J. Carrott

Publikováno v: Solvent Extraction and Ion Exchange. 31:442-462

To meet the needs of future closed fuel cycles, the complete recovery of minor actinides, including neptunium, may be required. Neptunium can be fully recovered by modifications to the Plutonium URanium Extraction (PUREX) process but this requires ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93b00b5a086393b63c62d57e6f4fc9ac
https://doi.org/10.1080/07366299.2013.800438

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Progress Towards the Development of a New GANEX Process

Autor: Rikard Malmbeck, D. Magnusson, Andreas Wilden, Giuseppe Modolo, Colin Gregson, Robin J. Taylor, Michal Sypula, Fiona McLachlan, Xavier Heres, A. Geist, M. J. Carrott, Udo Müllich, C. Carpentier, K. Bell

Publikováno v: Procedia Chemistry. 7:392-397

We report first results on the development of a new system for a GANEX 2nd cycle developed by the “ACSEPT” project. A solvent system consisting of 0.2 M N,N,N’,N’-tetra-n-octyl-diglycolamide (TODGA) + 0.5 M N,N’-dimethyl-N,N’-dioctyl-2(2-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e591173a9e42d1ae7e1a275fc8f4332b
https://doi.org/10.1016/j.proche.2012.10.061

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The EURO-GANEX process: current status of flowsheet development and process safety studies

Autor: Chris J. Maher, M. J. Carrott, Robin J. Taylor, Xavier Heres, Chris Rhodes, Andreas Geist, Rikard Malmbeck, Hitos Galán, Manuel Miguirditchian, Mark Sarsfield, Andreas Wilden, Giuseppe Modolo, C. Mason

Publikováno v: ATALANTE2016 – nuclear chemistry for sustainable fuel cycles, ATALANTE2016, Montpellier, France, 2016-06-05-2016-06-10
Procedia Chemistry
Procedia Chemistry, 2016, 21, pp.524-529. ⟨10.1016/j.proche.2016.10.073⟩
Procedia Chemistry, Elsevier, 2016, 21, pp.524-529. ⟨10.1016/j.proche.2016.10.073⟩
Procedia chemistry, 21, 524–529

International audience; A new hydrometallurgical grouped actinide extraction process has been developed to separate the transuranic actinide ions from dissolved spent fuel solution (after an initial uranium extraction cycle). This “EURO-GANEX” pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fb4898f1264a1bb8aa2bf442aeaed4c
https://juser.fz-juelich.de/record/810257

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Solvent Extraction Behavior of Plutonium (IV) Ions in the Presence of Simple Hydroxamic Acids

Autor: M. J. Carrott, Robin J. Taylor, Sergey I. Sinkov, O. D. Fox, Chris J. Maher, Gregory R. Choppin, C. Mason

Publikováno v: Solvent Extraction and Ion Exchange. 25:723-745

Formo‐ and aceto‐hydroxamic acids are very effective reagents for stripping Pu(IV) ions from a tri‐butyl phosphate phase into nitric acid. Distribution data for Pu(IV) in the presence of these hydroxamate ions have been obtained and trends esta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d35ede0272440ed782bc94ca95c191af
https://doi.org/10.1080/07366290701634560

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Controlling Neptunium and Plutonium within Single Cycle Solvent Extraction Flowsheets for Advanced Fuel Cycles

Autor: M. J. Carrott, Robin J. Taylor, Chris J. Maher, J. Eddie Birkett, Cécile V. Roube, Dave A. Woodhead, O. Danny Fox, Christopher J. Jones

Publikováno v: Journal of Nuclear Science and Technology. 44:337-343

Simple hydroxamic acids are shown to be useful reagents for the separation of Np and Pu from U within simplified, single cycle Purex flowsheets. They are compatible with the use of centrifugal contactors and laboratory scale flowsheet trials with ace

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10789a2a5aab4ea90233126678fb8679
https://doi.org/10.1080/18811248.2007.9711291

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