Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces

Autores
García, D.; Bruyre, V. I. E.; Bordoni, R.; Olmedo, A. M.; Morando, Pedro Juan
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The ability of malonic acid as a dissolution agent toward synthetic Ni ferrite and Alloy 600 and 800 corrosion products was explored. Its performance in the dissolution kinetics of Ni ferrite powders was compared with the one of oxalic acid. Kinetic parameters were obtained and the dependency on external Fe(II) was modelled. Oxidized samples used in descaling tests were prepared by exposure of coupons of both alloys to lithiated aqueous solutions, under hydrothermal conditions and hydrogen overpressure, simulating PHWR conditions. Oxide layer morphology, the influence of exposure time to corrosive medium and LiOH concentration on its thickness were characterized. Descaling tests consisting on a two-stage method (a first oxidizing step with alkaline permanganate followed by a reducing step with oxalic or malonic acid were carried out). Results were compared to those obtained with a well known chemical cleaning formulation (APAC: Alkaline Permanganate Ammonium Citrate) used in decontamination of several reactors and loops and the competitiveness of malonic acid was demonstrated.
Fil: García, D.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Bruyre, V. I. E.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Bordoni, R.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Olmedo, A. M.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Morando, Pedro Juan. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
decontamination reagent
Ni-rich alloy surfaces
malonic acid
Ni ferrite
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/192005
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfacesGarcía, D.Bruyre, V. I. E.Bordoni, R.Olmedo, A. M.Morando, Pedro Juandecontamination reagentNi-rich alloy surfacesmalonic acidNi ferritehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The ability of malonic acid as a dissolution agent toward synthetic Ni ferrite and Alloy 600 and 800 corrosion products was explored. Its performance in the dissolution kinetics of Ni ferrite powders was compared with the one of oxalic acid. Kinetic parameters were obtained and the dependency on external Fe(II) was modelled. Oxidized samples used in descaling tests were prepared by exposure of coupons of both alloys to lithiated aqueous solutions, under hydrothermal conditions and hydrogen overpressure, simulating PHWR conditions. Oxide layer morphology, the influence of exposure time to corrosive medium and LiOH concentration on its thickness were characterized. Descaling tests consisting on a two-stage method (a first oxidizing step with alkaline permanganate followed by a reducing step with oxalic or malonic acid were carried out). Results were compared to those obtained with a well known chemical cleaning formulation (APAC: Alkaline Permanganate Ammonium Citrate) used in decontamination of several reactors and loops and the competitiveness of malonic acid was demonstrated.Fil: García, D.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; ArgentinaFil: Bruyre, V. I. E.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; ArgentinaFil: Bordoni, R.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Olmedo, A. M.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Morando, Pedro Juan. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2011-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/192005García, D.; Bruyre, V. I. E.; Bordoni, R.; Olmedo, A. M.; Morando, Pedro Juan; Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces; Elsevier Science; Journal of Nuclear Materials; 412; 1; 5-2011; 72-810022-3115CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0022311511002078info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnucmat.2011.02.022info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:20Zoai:ri.conicet.gov.ar:11336/192005instacron: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:34982025-09-03 09:58:20.582CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
title Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
spellingShingle Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
García, D.
decontamination reagent
Ni-rich alloy surfaces
malonic acid
Ni ferrite
title_short Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
title_full Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
title_fullStr Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
title_full_unstemmed Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
title_sort Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces
dc.creator.none.fl_str_mv García, D.
Bruyre, V. I. E.
Bordoni, R.
Olmedo, A. M.
Morando, Pedro Juan
author García, D.
author_facet García, D.
Bruyre, V. I. E.
Bordoni, R.
Olmedo, A. M.
Morando, Pedro Juan
author_role author
author2 Bruyre, V. I. E.
Bordoni, R.
Olmedo, A. M.
Morando, Pedro Juan
author2_role author
author
author
author
dc.subject.none.fl_str_mv decontamination reagent
Ni-rich alloy surfaces
malonic acid
Ni ferrite
topic decontamination reagent
Ni-rich alloy surfaces
malonic acid
Ni ferrite
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The ability of malonic acid as a dissolution agent toward synthetic Ni ferrite and Alloy 600 and 800 corrosion products was explored. Its performance in the dissolution kinetics of Ni ferrite powders was compared with the one of oxalic acid. Kinetic parameters were obtained and the dependency on external Fe(II) was modelled. Oxidized samples used in descaling tests were prepared by exposure of coupons of both alloys to lithiated aqueous solutions, under hydrothermal conditions and hydrogen overpressure, simulating PHWR conditions. Oxide layer morphology, the influence of exposure time to corrosive medium and LiOH concentration on its thickness were characterized. Descaling tests consisting on a two-stage method (a first oxidizing step with alkaline permanganate followed by a reducing step with oxalic or malonic acid were carried out). Results were compared to those obtained with a well known chemical cleaning formulation (APAC: Alkaline Permanganate Ammonium Citrate) used in decontamination of several reactors and loops and the competitiveness of malonic acid was demonstrated.
Fil: García, D.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Bruyre, V. I. E.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Bordoni, R.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Olmedo, A. M.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Morando, Pedro Juan. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The ability of malonic acid as a dissolution agent toward synthetic Ni ferrite and Alloy 600 and 800 corrosion products was explored. Its performance in the dissolution kinetics of Ni ferrite powders was compared with the one of oxalic acid. Kinetic parameters were obtained and the dependency on external Fe(II) was modelled. Oxidized samples used in descaling tests were prepared by exposure of coupons of both alloys to lithiated aqueous solutions, under hydrothermal conditions and hydrogen overpressure, simulating PHWR conditions. Oxide layer morphology, the influence of exposure time to corrosive medium and LiOH concentration on its thickness were characterized. Descaling tests consisting on a two-stage method (a first oxidizing step with alkaline permanganate followed by a reducing step with oxalic or malonic acid were carried out). Results were compared to those obtained with a well known chemical cleaning formulation (APAC: Alkaline Permanganate Ammonium Citrate) used in decontamination of several reactors and loops and the competitiveness of malonic acid was demonstrated.
publishDate 2011
dc.date.none.fl_str_mv 2011-05
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/11336/192005
García, D.; Bruyre, V. I. E.; Bordoni, R.; Olmedo, A. M.; Morando, Pedro Juan; Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces; Elsevier Science; Journal of Nuclear Materials; 412; 1; 5-2011; 72-81
0022-3115
CONICET Digital
CONICET
url http://hdl.handle.net/11336/192005
identifier_str_mv García, D.; Bruyre, V. I. E.; Bordoni, R.; Olmedo, A. M.; Morando, Pedro Juan; Malonic acid: A potential reagent in decontamination processes for Ni-rich alloy surfaces; Elsevier Science; Journal of Nuclear Materials; 412; 1; 5-2011; 72-81
0022-3115
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0022311511002078
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnucmat.2011.02.022
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.13397

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