Explanipedia

Process flowsheet test of the i-SANEX process with CHON-compliant ligands in aqueous and organic phases Open

Daniel M. Whittaker, Mark J. Sarsfield, Robin J. Taylor, D. Woodhead, Kate Taylor , et al. · 2023

We report the results of a "CHON-compliant" i-SANEX flowsheet test using a surrogate feed with process concentrations of 241Am (>1 g/L) and major lanthanide and fission product species in a 32-stage counter-current centrifugal contactor (C…

Radiolytic transformation of AHA under single-cycle conditions Open

Gregory P. Horne, Jacy K. Conrad, Stephen P. Mezyk, Andrew R. Cook, Liam H. Isherwood , et al. · 2023

Historically, the radiation robustness of extractant ligands and the impact of their radiolysis products have been used to evaluate the radiolytic feasibility of solvent system formulations for used nuclear fuel (UNF) reprocessing. However…

Cover Feature: Gamma Radiation‐Induced Degradation of Acetohydroxamic Acid (AHA) in Aqueous Nitrate and Nitric Acid Solutions Evaluated by Multiscale Modelling (ChemPhysChem 5/2023) Open

Jacy K. Conrad, Stephen P. Mezyk, Liam H. Isherwood, Aliaksandr Baidak, Corey D. Pilgrim , et al. · 2023

The Cover Feature represents acetohydroxamic acid degradation in used nuclear fuel reprocessing cycles, where it is broken down by hydrolysis and radiation in aqueous nitric acid to form acetic acid, hydroxylamine, nitrous oxide, and hydro…

Gamma Radiation‐Induced Degradation of Acetohydroxamic Acid (AHA) in Aqueous Nitrate and Nitric Acid Solutions Evaluated by Multiscale Modelling Open

Jacy K. Conrad, Stephen P. Mezyk, Liam H. Isherwood, Aliaksandr Baidak, Corey D. Pilgrim , et al. · 2022

Acetohydroxamic acid (AHA) has been proposed for inclusion in advanced, single‐cycle, used nuclear fuel reprocessing solvent systems for the reduction and complexation of plutonium and neptunium ions. For this application, a detailed descr…

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

M. J. Carrott, Chris Maher, Chris Mason, Mark J. Sarsfield, Daniel M. Whittaker , et al. · 2022

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 …

Applications of Diglycolamide Based Solvent Extraction Processes in Spent Nuclear Fuel Reprocessing, Part 1: TODGA Open

Daniel M. Whittaker, Andreas Geist, Giuseppe Modolo, Robin J. Taylor, Mark J. Sarsfield , et al. · 2018

Over the last decade there has been much interest in the applications of diglycolamide (DGA) ligands for the extraction of the trivalent lanthanide and actinide ions from PUREX high active raffinates or dissolved spent nuclear fuel. Of the…

Plutonium coordination and redox chemistry with the CyMe<sub>4</sub>-BTPhen polydentate N-donor extractant ligand Open

Sean D. Reilly, Jing Su, Jason M. Keith, Ping Yang, Enrique R. Batista , et al. · 2018

Complexation of Pu(iv) with the actinide extractant CyMe₄-BTPhen (2,9-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-1,2,4-benzotriazin-3-yl)-1,10-phenanthroline) was studied experimentally and by computational analysis.

CCDC 1854313: Experimental Crystal Structure Determination Open

Sean D. Reilly, Jing Su, Jason M. Keith, Ping Yang, Enrique R. Batista , et al. · 2018

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 943938: Experimental Crystal Structure Determination Open

Gregory A. Price, Alan K. Brisdon, Simon Randall, Edward S. Lewis, Daniel M. Whittaker , et al. · 2017

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 943935: Experimental Crystal Structure Determination Open

Gregory A. Price, Alan K. Brisdon, Simon Randall, Edward A. Lewis, Daniel M. Whittaker , et al. · 2017

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 889456: Experimental Crystal Structure Determination Open

Gregory A. Price, Alan K. Brisdon, Simon Randall, Edward A. Lewis, Daniel M. Whittaker , et al. · 2017

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 943937: Experimental Crystal Structure Determination Open

Gregory A. Price, Alan K. Brisdon, Simon Randall, Edward A. Lewis, Daniel M. Whittaker , et al. · 2017

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 889457: Experimental Crystal Structure Determination Open

Gregory A. Price, Alan K. Brisdon, Simon Randall, Edward A. Lewis, Daniel M. Whittaker , et al. · 2017

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 943936: Experimental Crystal Structure Determination Open

Gregory A. Price, Alan K. Brisdon, Simon Randall, Edward S. Lewis, Daniel M. Whittaker , et al. · 2017

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

Rhenium(I) Tricarbonyl Complexes with Peripheral N-Coordination Sites: A Foundation for Heterotrimetallic Nonlinear Optical Chromophores Open

Benjamin J. Coe, S.P. Foxon, R. Pilkington, Sergio Sánchez, Daniel M. Whittaker , et al. · 2016

The compounds 4,4′-dicyano-2,2′-bipyridyl (dcbpy), 4,4′-bis(4-cyanophenyl)-2,2′-bipyridyl (bcpbpy), 4,4′-bis[(E)-2-(4-cyanophenyl)vinyl]-2,2′-bipyridyl (bcpvbpy), and 4,4′-bis[(E)-2-(4-pyridyl)vinyl]-2,2′-bipyridyl (bpvbpy) are used to pre…

Modelling of Innovative SANEX Process Maloperations Open

Fiona McLachlan, Robin J. Taylor, Daniel M. Whittaker, David Woodhead, Andreas Geist · 2016

The innovative (i-) SANEX process for the separation of minor actinides from PUREX highly active raffinate is expected to employ a solvent phase comprising 0.2M TODGA with 5 v/v% 1-octanol in an inert diluent. An initial extract / scrub se…

Nonlinear Optical Chromophores with Two Ferrocenyl, Octamethylferrocenyl, or 4-(Diphenylamino)phenyl Groups Attached to Rhenium(I) or Zinc(II) Centers Open

Benjamin J. Coe, S.P. Foxon, R. Pilkington, Sergio Sánchez, Daniel M. Whittaker , et al. · 2015

The compounds 4,4′-bis[(E)-2-R-vinyl]-2,2′-bipyridyl {R = ferrocenyl [(Fcv)_2bpy], octamethylferrocenyl [(Me_8Fcv)_2bpy] or 4-(diphenylamino)phenyl [(Dapv)_2bpy]} are used to prepare eight new complexes with Zn^(II)Cl_2, Zn^(II)(OAc)_2, or…

CCDC 1406548: Experimental Crystal Structure Determination Open

Benjamin J. Coe, S.P. Foxon, R. Pilkington, Sergio Sánchez, Daniel M. Whittaker , et al. · 2015

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 1406546: Experimental Crystal Structure Determination Open

Benjamin J. Coe, S.P. Foxon, R. Pilkington, Sergio Sánchez, Daniel M. Whittaker , et al. · 2015

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 1406545: Experimental Crystal Structure Determination Open

Benjamin J. Coe, S.P. Foxon, R. Pilkington, Sergio Sánchez, Daniel M. Whittaker , et al. · 2015

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

CCDC 1406547: Experimental Crystal Structure Determination Open

Benjamin J. Coe, S.P. Foxon, R. Pilkington, Sergio Sánchez, Daniel M. Whittaker , et al. · 2015

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

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