Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis

Detalhes bibliográficos
Autor(a) principal: Alfaro,Salvador
Data de Publicação: 2013
Outros Autores: Valenzuela,Miguel A.
Tipo de documento: Artigo
Idioma: spa
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000700011
Resumo: In the present work, beta zeolites were prepared by an alternative route called steam-assisted conversion (SAC). Several zeolites were synthesized using amorphous dry gels with a low SDA concentration (0.09 mol, TEAOH). Temperature and crystallization time were the main parameters studied. X-ray diffraction (XRD), infrared spectroscopy (IR) and scanning electron microscopy (SEM) were the characterization techniques employed. The zeolites prepared showed mixed phases such as beta, MTW and ZSM-5 while only one sample treated at 150ºC with 24 h of crystallization time showed a pure ZSM-5 phase (SAC-5). These preliminary results serve as a starting point for optimizing the synthesis of a specific type of zeolite using the SAC method.
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spelling Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesiszeolitesdry gelsteam-assisted conversionIn the present work, beta zeolites were prepared by an alternative route called steam-assisted conversion (SAC). Several zeolites were synthesized using amorphous dry gels with a low SDA concentration (0.09 mol, TEAOH). Temperature and crystallization time were the main parameters studied. X-ray diffraction (XRD), infrared spectroscopy (IR) and scanning electron microscopy (SEM) were the characterization techniques employed. The zeolites prepared showed mixed phases such as beta, MTW and ZSM-5 while only one sample treated at 150ºC with 24 h of crystallization time showed a pure ZSM-5 phase (SAC-5). These preliminary results serve as a starting point for optimizing the synthesis of a specific type of zeolite using the SAC method.Sociedade Brasileira de Química2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000700011Química Nova v.36 n.7 2013reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422013000700011info:eu-repo/semantics/openAccessAlfaro,SalvadorValenzuela,Miguel A.spa2013-09-12T00:00:00Zoai:scielo:S0100-40422013000700011Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2013-09-12T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
title Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
spellingShingle Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
Alfaro,Salvador
zeolites
dry gel
steam-assisted conversion
title_short Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
title_full Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
title_fullStr Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
title_full_unstemmed Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
title_sort Cristalización de zeolita beta mediante conversión asistida por vapor: influencia de los parámetros de síntesis
author Alfaro,Salvador
author_facet Alfaro,Salvador
Valenzuela,Miguel A.
author_role author
author2 Valenzuela,Miguel A.
author2_role author
dc.contributor.author.fl_str_mv Alfaro,Salvador
Valenzuela,Miguel A.
dc.subject.por.fl_str_mv zeolites
dry gel
steam-assisted conversion
topic zeolites
dry gel
steam-assisted conversion
description In the present work, beta zeolites were prepared by an alternative route called steam-assisted conversion (SAC). Several zeolites were synthesized using amorphous dry gels with a low SDA concentration (0.09 mol, TEAOH). Temperature and crystallization time were the main parameters studied. X-ray diffraction (XRD), infrared spectroscopy (IR) and scanning electron microscopy (SEM) were the characterization techniques employed. The zeolites prepared showed mixed phases such as beta, MTW and ZSM-5 while only one sample treated at 150ºC with 24 h of crystallization time showed a pure ZSM-5 phase (SAC-5). These preliminary results serve as a starting point for optimizing the synthesis of a specific type of zeolite using the SAC method.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000700011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000700011
dc.language.iso.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv 10.1590/S0100-40422013000700011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.36 n.7 2013
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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