Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol

Autores
Sepulveda Flores, Jorge Humberto; Yori, Juan Carlos; Vera, Carlos Roman
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Tungstophosphoric acid (HPA) catalysts supported over SiO2, ZrO2 and carbon were prepared and characterized. Its repeated use in the liquid phase reaction of esterification of acetic acid with butanol was particularly studied. The results revealed that silica- and zirconia-supported HPA had an intrinsic activity per unit protonic acid site greater than that of an Amberlyst W35 resin. Its repeated use was, however, impeded because of the dissolution of HPA in the reaction medium. Carbon-supported HPA catalysts had a slightly lower activity but they displayed a sustained conversion level upon reuse in subsequent catalytic tests. Inspection of the solvent media after the reaction in a UV-visible spectrophotometer revealed that both butanol and water leached HPA from the silica- and zirconia-supported catalysts and that the effect was minimal in the case of the carbon catalysts. It was rationalized that [PW12O40]3- anions are strongly adsorbed at pH 1-2 on the carbon support due to the electrostatic interaction with the carbon surface protons of zero-point-of-charge (ZPC) equal to 6.
Fil: Sepulveda Flores, Jorge Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Materia
Esterification
Reuse
Supported Heteropolyacids
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:11336/73020
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanolSepulveda Flores, Jorge HumbertoYori, Juan CarlosVera, Carlos RomanEsterificationReuseSupported Heteropolyacidshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Tungstophosphoric acid (HPA) catalysts supported over SiO2, ZrO2 and carbon were prepared and characterized. Its repeated use in the liquid phase reaction of esterification of acetic acid with butanol was particularly studied. The results revealed that silica- and zirconia-supported HPA had an intrinsic activity per unit protonic acid site greater than that of an Amberlyst W35 resin. Its repeated use was, however, impeded because of the dissolution of HPA in the reaction medium. Carbon-supported HPA catalysts had a slightly lower activity but they displayed a sustained conversion level upon reuse in subsequent catalytic tests. Inspection of the solvent media after the reaction in a UV-visible spectrophotometer revealed that both butanol and water leached HPA from the silica- and zirconia-supported catalysts and that the effect was minimal in the case of the carbon catalysts. It was rationalized that [PW12O40]3- anions are strongly adsorbed at pH 1-2 on the carbon support due to the electrostatic interaction with the carbon surface protons of zero-point-of-charge (ZPC) equal to 6.Fil: Sepulveda Flores, Jorge Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaElsevier Science2005-07info: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/11336/73020Sepulveda Flores, Jorge Humberto; Yori, Juan Carlos; Vera, Carlos Roman; Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol; Elsevier Science; Applied Catalysis A: General; 288; 1-2; 7-2005; 18-240926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2005.03.038info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:15Zoai:ri.conicet.gov.ar:11336/73020instacron: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 09:39:15.451CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
title Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
spellingShingle Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
Sepulveda Flores, Jorge Humberto
Esterification
Reuse
Supported Heteropolyacids
title_short Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
title_full Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
title_fullStr Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
title_full_unstemmed Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
title_sort Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol
dc.creator.none.fl_str_mv Sepulveda Flores, Jorge Humberto
Yori, Juan Carlos
Vera, Carlos Roman
author Sepulveda Flores, Jorge Humberto
author_facet Sepulveda Flores, Jorge Humberto
Yori, Juan Carlos
Vera, Carlos Roman
author_role author
author2 Yori, Juan Carlos
Vera, Carlos Roman
author2_role author
author
dc.subject.none.fl_str_mv Esterification
Reuse
Supported Heteropolyacids
topic Esterification
Reuse
Supported Heteropolyacids
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Tungstophosphoric acid (HPA) catalysts supported over SiO2, ZrO2 and carbon were prepared and characterized. Its repeated use in the liquid phase reaction of esterification of acetic acid with butanol was particularly studied. The results revealed that silica- and zirconia-supported HPA had an intrinsic activity per unit protonic acid site greater than that of an Amberlyst W35 resin. Its repeated use was, however, impeded because of the dissolution of HPA in the reaction medium. Carbon-supported HPA catalysts had a slightly lower activity but they displayed a sustained conversion level upon reuse in subsequent catalytic tests. Inspection of the solvent media after the reaction in a UV-visible spectrophotometer revealed that both butanol and water leached HPA from the silica- and zirconia-supported catalysts and that the effect was minimal in the case of the carbon catalysts. It was rationalized that [PW12O40]3- anions are strongly adsorbed at pH 1-2 on the carbon support due to the electrostatic interaction with the carbon surface protons of zero-point-of-charge (ZPC) equal to 6.
Fil: Sepulveda Flores, Jorge Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
description Tungstophosphoric acid (HPA) catalysts supported over SiO2, ZrO2 and carbon were prepared and characterized. Its repeated use in the liquid phase reaction of esterification of acetic acid with butanol was particularly studied. The results revealed that silica- and zirconia-supported HPA had an intrinsic activity per unit protonic acid site greater than that of an Amberlyst W35 resin. Its repeated use was, however, impeded because of the dissolution of HPA in the reaction medium. Carbon-supported HPA catalysts had a slightly lower activity but they displayed a sustained conversion level upon reuse in subsequent catalytic tests. Inspection of the solvent media after the reaction in a UV-visible spectrophotometer revealed that both butanol and water leached HPA from the silica- and zirconia-supported catalysts and that the effect was minimal in the case of the carbon catalysts. It was rationalized that [PW12O40]3- anions are strongly adsorbed at pH 1-2 on the carbon support due to the electrostatic interaction with the carbon surface protons of zero-point-of-charge (ZPC) equal to 6.
publishDate 2005
dc.date.none.fl_str_mv 2005-07
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/11336/73020
Sepulveda Flores, Jorge Humberto; Yori, Juan Carlos; Vera, Carlos Roman; Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol; Elsevier Science; Applied Catalysis A: General; 288; 1-2; 7-2005; 18-24
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/73020
identifier_str_mv Sepulveda Flores, Jorge Humberto; Yori, Juan Carlos; Vera, Carlos Roman; Repeated use of supported H3PW12O40 catalysts in the liquid phase esterification of acetic acid with butanol; Elsevier Science; Applied Catalysis A: General; 288; 1-2; 7-2005; 18-24
0926-860X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2005.03.038
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 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 13.070432

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