Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K

Autores
Bohe, Ana Ester; Guibaldo, Cristina Noemi; de Micco, Georgina
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Employing methods of separation based on selective chlorination it is possible to separate valuable components, such as metals and rare earths, from ores and / or solid wastes. In this paper we study the chlorination reaction of ruthenium oxide. This element is among nuclear fission products, also part of many electronic wastes and numerous catalysts in the chemical industry. The study of the chlorination reaction of ruthenium oxide will allow to analyze in which conditions it is possible to apply gaseous chlorination for ruthenium recovery. No systematic studies on the kinetics and chemical mechanism of ruthenium oxide chlorination are available in the literature. In the present study, we performed a thermodynamic analysis of possible reaction pathways. The reaction products were identified by scanning electron microscopy (SEM) and x-ray Diffraction (xrd), and the experimental conditions for obtaining stable α-RuCl3 by RuO2 chlorination and subsequent heating in Cl2 were established. The starting temperature for the chlorination was determined at 983 K. The observed mass loss is due to formation of volatile products. We analyzed the effects of gas flow rate, crucible geometry, and sample mass on the kinetics of the reaction, in order to establish the corresponding experimental reaction conditions for chemical kinetic control. The effect of temperature was analyzed and an apparent activation energy of 173 ± 8 kJ.mol-1 was obtained for the chlorination reaction.
Fil: Bohe, Ana Ester. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche; Argentina. Comision Nacional de Energia Atomica. Gerencia Complejo Tecnologico Pilcaniyeu; Argentina
Fil: Guibaldo, Cristina Noemi. Comisión Nacional de Energía Atómica; Argentina
Fil: de Micco, Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energia Atomica. Gerencia Complejo Tecnologico Pilcaniyeu. Division Cinetica Quimica; Argentina
Materia
Ruthenium Oxide
Chlorination
Kinetics
Thermogravimetry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/2705
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 KBohe, Ana EsterGuibaldo, Cristina Noemide Micco, GeorginaRuthenium OxideChlorinationKineticsThermogravimetryhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Employing methods of separation based on selective chlorination it is possible to separate valuable components, such as metals and rare earths, from ores and / or solid wastes. In this paper we study the chlorination reaction of ruthenium oxide. This element is among nuclear fission products, also part of many electronic wastes and numerous catalysts in the chemical industry. The study of the chlorination reaction of ruthenium oxide will allow to analyze in which conditions it is possible to apply gaseous chlorination for ruthenium recovery. No systematic studies on the kinetics and chemical mechanism of ruthenium oxide chlorination are available in the literature. In the present study, we performed a thermodynamic analysis of possible reaction pathways. The reaction products were identified by scanning electron microscopy (SEM) and x-ray Diffraction (xrd), and the experimental conditions for obtaining stable α-RuCl3 by RuO2 chlorination and subsequent heating in Cl2 were established. The starting temperature for the chlorination was determined at 983 K. The observed mass loss is due to formation of volatile products. We analyzed the effects of gas flow rate, crucible geometry, and sample mass on the kinetics of the reaction, in order to establish the corresponding experimental reaction conditions for chemical kinetic control. The effect of temperature was analyzed and an apparent activation energy of 173 ± 8 kJ.mol-1 was obtained for the chlorination reaction.Fil: Bohe, Ana Ester. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche; Argentina. Comision Nacional de Energia Atomica. Gerencia Complejo Tecnologico Pilcaniyeu; ArgentinaFil: Guibaldo, Cristina Noemi. Comisión Nacional de Energía Atómica; ArgentinaFil: de Micco, Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energia Atomica. Gerencia Complejo Tecnologico Pilcaniyeu. Division Cinetica Quimica; ArgentinaElsevier2015-07-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2705Bohe, Ana Ester; Guibaldo, Cristina Noemi; de Micco, Georgina; Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K; Elsevier; Procedia Materials Science; 8; 2-7-2015; 841-8502211-8128enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.04.144info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:11Zoai:ri.conicet.gov.ar:11336/2705instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:55:12.165CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
title Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
spellingShingle Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
Bohe, Ana Ester
Ruthenium Oxide
Chlorination
Kinetics
Thermogravimetry
title_short Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
title_full Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
title_fullStr Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
title_full_unstemmed Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
title_sort Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K
dc.creator.none.fl_str_mv Bohe, Ana Ester
Guibaldo, Cristina Noemi
de Micco, Georgina
author Bohe, Ana Ester
author_facet Bohe, Ana Ester
Guibaldo, Cristina Noemi
de Micco, Georgina
author_role author
author2 Guibaldo, Cristina Noemi
de Micco, Georgina
author2_role author
author
dc.subject.none.fl_str_mv Ruthenium Oxide
Chlorination
Kinetics
Thermogravimetry
topic Ruthenium Oxide
Chlorination
Kinetics
Thermogravimetry
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Employing methods of separation based on selective chlorination it is possible to separate valuable components, such as metals and rare earths, from ores and / or solid wastes. In this paper we study the chlorination reaction of ruthenium oxide. This element is among nuclear fission products, also part of many electronic wastes and numerous catalysts in the chemical industry. The study of the chlorination reaction of ruthenium oxide will allow to analyze in which conditions it is possible to apply gaseous chlorination for ruthenium recovery. No systematic studies on the kinetics and chemical mechanism of ruthenium oxide chlorination are available in the literature. In the present study, we performed a thermodynamic analysis of possible reaction pathways. The reaction products were identified by scanning electron microscopy (SEM) and x-ray Diffraction (xrd), and the experimental conditions for obtaining stable α-RuCl3 by RuO2 chlorination and subsequent heating in Cl2 were established. The starting temperature for the chlorination was determined at 983 K. The observed mass loss is due to formation of volatile products. We analyzed the effects of gas flow rate, crucible geometry, and sample mass on the kinetics of the reaction, in order to establish the corresponding experimental reaction conditions for chemical kinetic control. The effect of temperature was analyzed and an apparent activation energy of 173 ± 8 kJ.mol-1 was obtained for the chlorination reaction.
Fil: Bohe, Ana Ester. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche; Argentina. Comision Nacional de Energia Atomica. Gerencia Complejo Tecnologico Pilcaniyeu; Argentina
Fil: Guibaldo, Cristina Noemi. Comisión Nacional de Energía Atómica; Argentina
Fil: de Micco, Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energia Atomica. Gerencia Complejo Tecnologico Pilcaniyeu. Division Cinetica Quimica; Argentina
description Employing methods of separation based on selective chlorination it is possible to separate valuable components, such as metals and rare earths, from ores and / or solid wastes. In this paper we study the chlorination reaction of ruthenium oxide. This element is among nuclear fission products, also part of many electronic wastes and numerous catalysts in the chemical industry. The study of the chlorination reaction of ruthenium oxide will allow to analyze in which conditions it is possible to apply gaseous chlorination for ruthenium recovery. No systematic studies on the kinetics and chemical mechanism of ruthenium oxide chlorination are available in the literature. In the present study, we performed a thermodynamic analysis of possible reaction pathways. The reaction products were identified by scanning electron microscopy (SEM) and x-ray Diffraction (xrd), and the experimental conditions for obtaining stable α-RuCl3 by RuO2 chlorination and subsequent heating in Cl2 were established. The starting temperature for the chlorination was determined at 983 K. The observed mass loss is due to formation of volatile products. We analyzed the effects of gas flow rate, crucible geometry, and sample mass on the kinetics of the reaction, in order to establish the corresponding experimental reaction conditions for chemical kinetic control. The effect of temperature was analyzed and an apparent activation energy of 173 ± 8 kJ.mol-1 was obtained for the chlorination reaction.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/2705
Bohe, Ana Ester; Guibaldo, Cristina Noemi; de Micco, Georgina; Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K; Elsevier; Procedia Materials Science; 8; 2-7-2015; 841-850
2211-8128
url http://hdl.handle.net/11336/2705
identifier_str_mv Bohe, Ana Ester; Guibaldo, Cristina Noemi; de Micco, Georgina; Chlorination of RuO2 with gaseous Cl2 between 998 and 1123 K; Elsevier; Procedia Materials Science; 8; 2-7-2015; 841-850
2211-8128
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.04.144
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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