Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid

Autores
Mocchiutti, Paulina; Galván, María Verónica; Zanuttini, Miguel Angel Mario
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effects of the Fenton reagent on recycled unbleached pulp in the absence and presence of a model chemical contaminant, the p-hydroxybenzoic acid (HBA), were studied. In the absence of HBA, the Fenton system clearly modified the chemical and papermaking properties of the pulp. The kappa number was reduced and the specific light absorption coefficient was increased, indicating lignin modification. The amount of total acid groups increased, suggesting lignin or carbohydrate oxidation. Pulp freeness and wet tensile strength were significantly improved, while short compressive strength was slightly increased. Nevertheless, dry tensile strength decreased. In the presence of HBA, the chemical and papermaking properties of the pulp were less modified. When a higher ferrous ion charge was applied, half of the HBA present in pulp was eliminated while, at a lower ferrous ion charge, a lower reduction in HBA was produced, pulp strength being nevertheless preserved.
Fil: Mocchiutti, Paulina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Galván, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Zanuttini, Miguel Angel Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Materia
HYDROXYL
RADICALS
OXIDATION
P-HYDROXYBENZONIC
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:11336/251089
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acidMocchiutti, PaulinaGalván, María VerónicaZanuttini, Miguel Angel MarioHYDROXYLRADICALSOXIDATIONP-HYDROXYBENZONIChttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The effects of the Fenton reagent on recycled unbleached pulp in the absence and presence of a model chemical contaminant, the p-hydroxybenzoic acid (HBA), were studied. In the absence of HBA, the Fenton system clearly modified the chemical and papermaking properties of the pulp. The kappa number was reduced and the specific light absorption coefficient was increased, indicating lignin modification. The amount of total acid groups increased, suggesting lignin or carbohydrate oxidation. Pulp freeness and wet tensile strength were significantly improved, while short compressive strength was slightly increased. Nevertheless, dry tensile strength decreased. In the presence of HBA, the chemical and papermaking properties of the pulp were less modified. When a higher ferrous ion charge was applied, half of the HBA present in pulp was eliminated while, at a lower ferrous ion charge, a lower reduction in HBA was produced, pulp strength being nevertheless preserved.Fil: Mocchiutti, Paulina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaFil: Galván, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaFil: Zanuttini, Miguel Angel Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaEditura Acad Romane2010-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/251089Mocchiutti, Paulina; Galván, María Verónica; Zanuttini, Miguel Angel Mario; Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid; Editura Acad Romane; Cellulose Chemistry And Technology; 44; 7-8; 7-2010; 277-2830576-9787CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://cellulosechemtechnol.ro/pdf/CCT44,7-8(2010)/p.277-283.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:32Zoai:ri.conicet.gov.ar:11336/251089instacron: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 09:45:32.921CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
title Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
spellingShingle Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
Mocchiutti, Paulina
HYDROXYL
RADICALS
OXIDATION
P-HYDROXYBENZONIC
title_short Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
title_full Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
title_fullStr Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
title_full_unstemmed Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
title_sort Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid
dc.creator.none.fl_str_mv Mocchiutti, Paulina
Galván, María Verónica
Zanuttini, Miguel Angel Mario
author Mocchiutti, Paulina
author_facet Mocchiutti, Paulina
Galván, María Verónica
Zanuttini, Miguel Angel Mario
author_role author
author2 Galván, María Verónica
Zanuttini, Miguel Angel Mario
author2_role author
author
dc.subject.none.fl_str_mv HYDROXYL
RADICALS
OXIDATION
P-HYDROXYBENZONIC
topic HYDROXYL
RADICALS
OXIDATION
P-HYDROXYBENZONIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The effects of the Fenton reagent on recycled unbleached pulp in the absence and presence of a model chemical contaminant, the p-hydroxybenzoic acid (HBA), were studied. In the absence of HBA, the Fenton system clearly modified the chemical and papermaking properties of the pulp. The kappa number was reduced and the specific light absorption coefficient was increased, indicating lignin modification. The amount of total acid groups increased, suggesting lignin or carbohydrate oxidation. Pulp freeness and wet tensile strength were significantly improved, while short compressive strength was slightly increased. Nevertheless, dry tensile strength decreased. In the presence of HBA, the chemical and papermaking properties of the pulp were less modified. When a higher ferrous ion charge was applied, half of the HBA present in pulp was eliminated while, at a lower ferrous ion charge, a lower reduction in HBA was produced, pulp strength being nevertheless preserved.
Fil: Mocchiutti, Paulina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Galván, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Zanuttini, Miguel Angel Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
description The effects of the Fenton reagent on recycled unbleached pulp in the absence and presence of a model chemical contaminant, the p-hydroxybenzoic acid (HBA), were studied. In the absence of HBA, the Fenton system clearly modified the chemical and papermaking properties of the pulp. The kappa number was reduced and the specific light absorption coefficient was increased, indicating lignin modification. The amount of total acid groups increased, suggesting lignin or carbohydrate oxidation. Pulp freeness and wet tensile strength were significantly improved, while short compressive strength was slightly increased. Nevertheless, dry tensile strength decreased. In the presence of HBA, the chemical and papermaking properties of the pulp were less modified. When a higher ferrous ion charge was applied, half of the HBA present in pulp was eliminated while, at a lower ferrous ion charge, a lower reduction in HBA was produced, pulp strength being nevertheless preserved.
publishDate 2010
dc.date.none.fl_str_mv 2010-07
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/11336/251089
Mocchiutti, Paulina; Galván, María Verónica; Zanuttini, Miguel Angel Mario; Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid; Editura Acad Romane; Cellulose Chemistry And Technology; 44; 7-8; 7-2010; 277-283
0576-9787
CONICET Digital
CONICET
url http://hdl.handle.net/11336/251089
identifier_str_mv Mocchiutti, Paulina; Galván, María Verónica; Zanuttini, Miguel Angel Mario; Effects of fenton system on recycled unbleached pulp in absence and presence of p-Hydroxybenzoic acid; Editura Acad Romane; Cellulose Chemistry And Technology; 44; 7-8; 7-2010; 277-283
0576-9787
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://cellulosechemtechnol.ro/pdf/CCT44,7-8(2010)/p.277-283.pdf
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Editura Acad Romane
publisher.none.fl_str_mv Editura Acad Romane
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 12.885934

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