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Academic literature on the topic 'Dmdohema'
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Journal articles on the topic "Dmdohema"
Weßling, Patrik, Michael Trumm, Andreas Geist, and Petra J. Panak. "Stoichiometry of An(iii)–DMDOHEMA complexes formed during solvent extraction." Dalton Transactions 47, no. 32 (2018): 10906–14. http://dx.doi.org/10.1039/c8dt02504e.
Full textEbert, Elena L., Andrey Bukaemskiy, Fabian Sadowski, Steve Lange, Andreas Wilden, and Giuseppe Modolo. "Reprocessability of molybdenum and magnesia based inert matrix fuels." Nukleonika 60, no. 4 (December 1, 2015): 871–78. http://dx.doi.org/10.1515/nuka-2015-0124.
Full textPetit, S., L. Bertolo, F. Petitjean, C. Marie, O. Conocar, and V. Thiebaut. "TEHDGA, DMDOHEMA and Mixed Sorbents: Characterization and Am(III) Uptake Properties." Procedia Chemistry 21 (2016): 9–16. http://dx.doi.org/10.1016/j.proche.2016.10.002.
Full textPacary, Vincent, Fabien Burdet, and Marie-Thérèse Duchesne. "Experimental and Modeling of Extraction of Lanthanides in System HNO3-TEDGA-{DMDOHEMA-HDEHP}." Procedia Chemistry 7 (2012): 328–33. http://dx.doi.org/10.1016/j.proche.2012.10.052.
Full textMarie, Cécile, Vincent Vanel, Sou Watanabe, Marie-Thérèse Duchesne, Nicole Zorz, and Laurence Berthon. "Behavior of Molybdenum (VI) in {DMDOHEMA–HDEHP/nitric acid} Liquid–Liquid Extraction Systems." Solvent Extraction and Ion Exchange 34, no. 5 (July 2016): 407–21. http://dx.doi.org/10.1080/07366299.2016.1208029.
Full textCarrot, M. J., C. R. Gregson, and R. J. Taylor. "Neptunium Extraction and Stability in the GANEX Solvent: 0.2 M TODGA/0.5 M DMDOHEMA/Kerosene." Solvent Extraction and Ion Exchange 31, no. 5 (October 11, 2012): 463–82. http://dx.doi.org/10.1080/07366299.2012.735559.
Full textPatil, Ajay B., Pankaj Kandwal, V. S. Shinde, P. N. Pathak, and P. K. Mohapatra. "Evaluation of DMDOHEMA based supported liquid membrane system for high level waste remediation under simulated conditions." Journal of Membrane Science 442 (September 2013): 48–56. http://dx.doi.org/10.1016/j.memsci.2013.04.019.
Full textPoirot, Rémi, Damien Bourgeois, and Daniel Meyer. "Palladium Extraction by a Malonamide Derivative (DMDOHEMA) from Nitrate Media: Extraction Behavior and Third Phase Characterization." Solvent Extraction and Ion Exchange 32, no. 5 (June 6, 2014): 529–42. http://dx.doi.org/10.1080/07366299.2014.908587.
Full textGeist, Andreas, Laurence Berthon, Marie-Christine Charbonnel, and Udo Müllich. "Extraction of Nitric Acid, Americium(III), Curium(III), and Lanthanides(III) into DMDOHEMA Dissolved in Kerosene." Solvent Extraction and Ion Exchange 38, no. 7 (July 21, 2020): 681–702. http://dx.doi.org/10.1080/07366299.2020.1794523.
Full textUsma, Cesar L., S. Dourdain, G. Arrachart, and S. Pellet-Rostaing. "Solvent extraction of rare earths elements from nitrate media in DMDOHEMA/ionic liquid systems: performance and mechanism studies." RSC Advances 11, no. 50 (2021): 31197–207. http://dx.doi.org/10.1039/d1ra05359k.
Full textDissertations / Theses on the topic "Dmdohema"
Scoppola, Ernesto. "Solvent extraction : a study of the liquid/liquid interface with ligands combining x-ray and neutron reflectivity measurements." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS203/document.
Full textIn the frame of the nuclear waste reprocessing and various kinds of critical metals recycling methods, solvent extraction is one of the most used technological processes. The liquid interface between two immiscible fluids is considered as a region where many physical and chemical phenomena take place and can limit or promote the transfer of species between both fluids. The structure of these interfaces has to be known as a function of several thermodynamical parameters to be able to determine the associated energy landscape. X-ray and neutron reflectivity are suitable techniques to probe such kind of fluctuating and buried interfaces at the nanometer scale and at equilibrium. For this study, a new cell has been built and a specific data analysis procedure was established.We have focused our study on two different biphasic systems (water/dodecane) containing lanthanides salts and two different nonionic ligands or extractant molecules: DMDBTDMA and DMDOHEMA diamides. These ligands are known to have different behaviour in the lanthanides extraction process. Although the amphiphilic chemical structure of both diamides is well known, the structure of the liquid/liquid interface appears to be different as those expected for a classical surfactant molecule. This structure looks more complex, varies as a function of the ligand concentration in the organic phase (below the critical aggregation concentration) and as a function of the proton and salt concentration of the aqueous phase. A monolayer organization does not appear as the main interfacial structuration and a thicker organic layer with an excess of salt has to be considered.In the case of the DMDBTDMA, this thicker region (approximatively three or four times the length of the ligand) creates an interfacial region where oil and water molecules as well as some salts can mix in. The DMDOHEMA system shows a different structuration where we can roughly observe also a thick layer of the ligand (approximatively two times the length of the ligand) but located more within the oil phase and forming a barrier to the salt distribution. These different interfacial structures made of DMDBTDMA and DMDOHEMA could allow to explain the diffusive or kinetic regime of ion transfer observed respectively in similar systems by others authors
Bosland, Loïc. "Étude thermodynamique et cinétique de l'extraction des nitrates de lanthanides par un malonamide : N,N-diméthyl-N,N-dioctyl-hexyléthoxy-malonamide ou DMDOHEMA /." [Gif-sur-Yvette] : [CEA Saclay, Direction des systèmes d'information], 2006. http://catalogue.bnf.fr/ark:/12148/cb40149445q.
Full textLa p. de titre porte en plus : "CEA-VALRHO, site de Marcoule, Direction de l'énergie nucléaire, Département Radiochimie et procédés, Service de Chimie des procédés de séparation" Bibliogr. p. 201-210. Résumé en français et en anglais.
Bosland, Loïc. "Etude thermodynamique et cinétique de l'extraction des nitrates de lanthanides par un malonamide : N,N diméthyl-N,N dioctyl hexyléthoxy malonamide ou DMDOHEMA." Châtenay-Malabry, Ecole centrale de Paris, 2005. http://www.theses.fr/2005ECAP0983.
Full textIn the field of nuclear wastes separation, diamex process (based on liquid-liquid extraction) allows the coextraction of trivalent lanthanides and actinides thanks to dmdohema molecule. Objectives of this study are to measure the lanthanides extraction kinetics and to characterize the organic phase. Firstly, a thermodynamic study of water, nitric acid and neodinium nitrate extraction was done in diamex chemical conditions. Organic phase characterisation was done with interfacial tension measurements. Micellar critical concentration were determined at differents temperatures. Then, osmometry measurements show that aggregates of diamide molecule are present in organic phase. Their size and concentration vary with the temperature and the composition of aqueous phase. Nitric acid extraction was modelled at 25 °c. Various complexes were identified : monomerics species : l, l(hno3), l(hno3)2 et l2(hno3), aggregates when me