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dc.contributor.author
Guibaldo, Cristina Noemi
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dc.contributor.author
de Micco, Georgina
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dc.contributor.author
Bohe, Ana Ester
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dc.date.available
2020-10-23T20:36:51Z
dc.date.issued
2019-04
dc.identifier.citation
Guibaldo, Cristina Noemi; de Micco, Georgina; Bohe, Ana Ester; Preparation of UF4 by Carbochlorination of U3O8 and Solid-State Halogen Exchange Reaction; American Society of Mechanical Engineers; Journal of Nuclear Engineering and Radiation Science; 5; 2; 4-2019; 1-5
dc.identifier.issn
2332-8983
dc.identifier.uri
http://hdl.handle.net/11336/116768
dc.description.abstract
Uranium tetrafluoride was synthesized using a novel method, which consists of a combination of carbochlorination reaction between a mixture of U3O8 and sucrose carbon with chlorine, and a solid-state halogen exchange reaction between the products of the carbochlorination reaction and sodium fluoride. The thermodynamic feasibility to produce the halogen exchange reaction between UCl4 and NaF was analyzed. Reactions are favorable in standard conditions, even at low temperature. We have prepared a mixture of UCl4 and UCl2O2 by U3O8 treatment in Cl2 atmosphere with presence of sucrose carbon at 900 °C. UCl4 and UCl2O2 were obtained as a condensed product, which was collected in a quartz capsule containing NaF. The capsules were sealed after several repeated stages of argon purges and mechanic vacuum. Subsequently, they were treated at 300-350 °C for 2 h. We obtained that when NaF is the limiting reagent, the solid product of the thermal treatment of the capsules consists in a mixture of UF4 and NaCl. Solid products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), fluorescence spectroscopy, and energy dispersive X-ray spectroscopy. Gaseous products were identified by Fourier-transform infrared spectroscopy.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Society of Mechanical Engineers
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
URANIUM
dc.subject
TETRAFLUORIDE
dc.subject
CARBOCHLORINATION
dc.subject
SYNTHESIS
dc.subject.classification
Ingeniería de Procesos Químicos
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Preparation of UF4 by Carbochlorination of U3O8 and Solid-State Halogen Exchange Reaction
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-10-07T13:58:10Z
dc.identifier.eissn
2332-8975
dc.journal.volume
5
dc.journal.number
2
dc.journal.pagination
1-5
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Guibaldo, Cristina Noemi. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia Complejo Tecnológico Pilcaniyeu; Argentina
dc.description.fil
Fil: de Micco, Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia Complejo Tecnológico Pilcaniyeu; Argentina
dc.description.fil
Fil: Bohe, Ana Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia Complejo Tecnológico Pilcaniyeu; Argentina
dc.journal.title
Journal of Nuclear Engineering and Radiation Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1115/1.4042362
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://asmedigitalcollection.asme.org/nuclearengineering/article-abstract/5/2/020910/725824/Preparation-of-UF4-by-Carbochlorination-of-U3O8
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