Hydration of α-pinene catalyzed by acid clays

Autores
Comelli, Nora Alejandra; Avila, Maria Cecilia; Volzone, Cristina; Ponzi, Marta Isabel
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The hydration reaction of α-pinene in the presence of natural clays treated with monochloroacetic acid as catalyst to obtain oxygenated compounds was studied. Catalysts were characterized using X-ray diffraction, differential thermal analysis, programmed thermal desorption of adsorbed pyridine, and infrared spectroscopic analysis of adsorbed pyridine to determine Brønsted and Lewis acid sites. Catalytic tests revealed that treatment of the natural clay with the acid improved the catalytic activity and the selectivity toward oxygenated products by increasing the acidity of the catalyst. The selectivity toward oxygenated compounds increased with the augment of the α-pinene conversion because of greater contact between water molecules with the remaining α-pinene molecules. The natural clay without treatment produced compounds resulting from α-pinene isomerization, whereas the treated clays produced alcohols and other products in addition to isomerization compounds. After a certain time, the α-terpineol was isomerized into cineols. Studies of the reusability of the JAL catalyst were performed (clay treated with monochloroacetic acid). As the number of reuses increased, the percent conversion decreased; however, the selectivity toward oxygenated compounds increased.
Fil: Comelli, Nora Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
Fil: Avila, Maria Cecilia. Universidad Nacional de San Luis. Facultad de Ingeniería y Ciencias Económico Sociales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
Fil: Volzone, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro Tecnológico de Recursos Minerales y Cerámica (i); Argentina
Fil: Ponzi, Marta Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
Materia
Monochloroacetic
Hydration
Alpha Pinene
Cineols
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:11336/2188
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/2188
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hydration of α-pinene catalyzed by acid claysComelli, Nora AlejandraAvila, Maria CeciliaVolzone, CristinaPonzi, Marta IsabelMonochloroaceticHydrationAlpha PineneCineolshttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The hydration reaction of α-pinene in the presence of natural clays treated with monochloroacetic acid as catalyst to obtain oxygenated compounds was studied. Catalysts were characterized using X-ray diffraction, differential thermal analysis, programmed thermal desorption of adsorbed pyridine, and infrared spectroscopic analysis of adsorbed pyridine to determine Brønsted and Lewis acid sites. Catalytic tests revealed that treatment of the natural clay with the acid improved the catalytic activity and the selectivity toward oxygenated products by increasing the acidity of the catalyst. The selectivity toward oxygenated compounds increased with the augment of the α-pinene conversion because of greater contact between water molecules with the remaining α-pinene molecules. The natural clay without treatment produced compounds resulting from α-pinene isomerization, whereas the treated clays produced alcohols and other products in addition to isomerization compounds. After a certain time, the α-terpineol was isomerized into cineols. Studies of the reusability of the JAL catalyst were performed (clay treated with monochloroacetic acid). As the number of reuses increased, the percent conversion decreased; however, the selectivity toward oxygenated compounds increased.Fil: Comelli, Nora Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Avila, Maria Cecilia. Universidad Nacional de San Luis. Facultad de Ingeniería y Ciencias Económico Sociales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Volzone, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro Tecnológico de Recursos Minerales y Cerámica (i); ArgentinaFil: Ponzi, Marta Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaVersita2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2188Comelli, Nora Alejandra; Avila, Maria Cecilia; Volzone, Cristina; Ponzi, Marta Isabel; Hydration of α-pinene catalyzed by acid clays; Versita; Central European Journal of Chemistry; 11; 5; 4-2013; 689-6971895-10662391-5420enginfo:eu-repo/semantics/altIdentifier/url/http://www.degruyter.com/view/j/chem.2013.11.issue-5/s11532-013-0217-4/s11532-013-0217-4.xml?format=INTinfo:eu-repo/semantics/altIdentifier/doi/10.2478/s11532-013-0217-4info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:39Zoai:ri.conicet.gov.ar:11336/2188instacron: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 10:09:39.833CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydration of α-pinene catalyzed by acid clays
title Hydration of α-pinene catalyzed by acid clays
spellingShingle Hydration of α-pinene catalyzed by acid clays
Comelli, Nora Alejandra
Monochloroacetic
Hydration
Alpha Pinene
Cineols
title_short Hydration of α-pinene catalyzed by acid clays
title_full Hydration of α-pinene catalyzed by acid clays
title_fullStr Hydration of α-pinene catalyzed by acid clays
title_full_unstemmed Hydration of α-pinene catalyzed by acid clays
title_sort Hydration of α-pinene catalyzed by acid clays
dc.creator.none.fl_str_mv Comelli, Nora Alejandra
Avila, Maria Cecilia
Volzone, Cristina
Ponzi, Marta Isabel
author Comelli, Nora Alejandra
author_facet Comelli, Nora Alejandra
Avila, Maria Cecilia
Volzone, Cristina
Ponzi, Marta Isabel
author_role author
author2 Avila, Maria Cecilia
Volzone, Cristina
Ponzi, Marta Isabel
author2_role author
author
author
dc.subject.none.fl_str_mv Monochloroacetic
Hydration
Alpha Pinene
Cineols
topic Monochloroacetic
Hydration
Alpha Pinene
Cineols
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The hydration reaction of α-pinene in the presence of natural clays treated with monochloroacetic acid as catalyst to obtain oxygenated compounds was studied. Catalysts were characterized using X-ray diffraction, differential thermal analysis, programmed thermal desorption of adsorbed pyridine, and infrared spectroscopic analysis of adsorbed pyridine to determine Brønsted and Lewis acid sites. Catalytic tests revealed that treatment of the natural clay with the acid improved the catalytic activity and the selectivity toward oxygenated products by increasing the acidity of the catalyst. The selectivity toward oxygenated compounds increased with the augment of the α-pinene conversion because of greater contact between water molecules with the remaining α-pinene molecules. The natural clay without treatment produced compounds resulting from α-pinene isomerization, whereas the treated clays produced alcohols and other products in addition to isomerization compounds. After a certain time, the α-terpineol was isomerized into cineols. Studies of the reusability of the JAL catalyst were performed (clay treated with monochloroacetic acid). As the number of reuses increased, the percent conversion decreased; however, the selectivity toward oxygenated compounds increased.
Fil: Comelli, Nora Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
Fil: Avila, Maria Cecilia. Universidad Nacional de San Luis. Facultad de Ingeniería y Ciencias Económico Sociales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
Fil: Volzone, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro Tecnológico de Recursos Minerales y Cerámica (i); Argentina
Fil: Ponzi, Marta Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
description The hydration reaction of α-pinene in the presence of natural clays treated with monochloroacetic acid as catalyst to obtain oxygenated compounds was studied. Catalysts were characterized using X-ray diffraction, differential thermal analysis, programmed thermal desorption of adsorbed pyridine, and infrared spectroscopic analysis of adsorbed pyridine to determine Brønsted and Lewis acid sites. Catalytic tests revealed that treatment of the natural clay with the acid improved the catalytic activity and the selectivity toward oxygenated products by increasing the acidity of the catalyst. The selectivity toward oxygenated compounds increased with the augment of the α-pinene conversion because of greater contact between water molecules with the remaining α-pinene molecules. The natural clay without treatment produced compounds resulting from α-pinene isomerization, whereas the treated clays produced alcohols and other products in addition to isomerization compounds. After a certain time, the α-terpineol was isomerized into cineols. Studies of the reusability of the JAL catalyst were performed (clay treated with monochloroacetic acid). As the number of reuses increased, the percent conversion decreased; however, the selectivity toward oxygenated compounds increased.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
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/11336/2188
Comelli, Nora Alejandra; Avila, Maria Cecilia; Volzone, Cristina; Ponzi, Marta Isabel; Hydration of α-pinene catalyzed by acid clays; Versita; Central European Journal of Chemistry; 11; 5; 4-2013; 689-697
1895-1066
2391-5420
url http://hdl.handle.net/11336/2188
identifier_str_mv Comelli, Nora Alejandra; Avila, Maria Cecilia; Volzone, Cristina; Ponzi, Marta Isabel; Hydration of α-pinene catalyzed by acid clays; Versita; Central European Journal of Chemistry; 11; 5; 4-2013; 689-697
1895-1066
2391-5420
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.degruyter.com/view/j/chem.2013.11.issue-5/s11532-013-0217-4/s11532-013-0217-4.xml?format=INT
info:eu-repo/semantics/altIdentifier/doi/10.2478/s11532-013-0217-4
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
application/pdf
dc.publisher.none.fl_str_mv Versita
publisher.none.fl_str_mv Versita
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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