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dc.contributor.author
Vaschetto, Eliana Gabriela
dc.contributor.author
Casuscelli, Sandra Graciela
dc.contributor.author
Eimer, Griselda Alejandra
dc.date.available
2017-01-06T20:53:26Z
dc.date.issued
2016-01
dc.identifier.citation
Vaschetto, Eliana Gabriela; Casuscelli, Sandra Graciela; Eimer, Griselda Alejandra; Improvements in the Beckmann rearrangement process by using highly selective mesoporous catalysts; Elsevier; Microporous And Mesoporous Materials; 221; 1-2016; 175-181
dc.identifier.issn
1387-1811
dc.identifier.uri
http://hdl.handle.net/11336/10960
dc.description.abstract
The Beckmann rearrangement of cyclohexanone oxime (CHO) into e-Caprolactam (e-C) at 300e380 C and W/F ¼ 1e60 gh/mol over a Al-MCM-41 catalyst was studied in a flow reactor at atmospheric pressure. Different reaction conditions as well as the nature of the solvents employed in the feed were evaluated. The e-C was the main product on the whole reaction conditions, but temperatures above 360 C favored its decomposition. A reaction pathway was proposed in order to explain the results obtained at 360 C. The stability and the possibility of recycling of the catalyst were checked by XRD, N2 adsorption, FTIR, pyridine adsorption coupled with FTIR and catalytic activity tests. Thus, the catalyst could be used during 3600 min and then recovered and reused three times without significant changes in the active species, catalytic activity and e-C yield. In addition, a modification in the operating conditions, which consisted in pretreating the catalyst with 1-hexanol, allowed to improve the yield to caprolactam by blocking the terminal silanols responsible of the byproduct formation. Thus, the better catalytic performance was observed at 350 C and W/F ¼ 40 gh/mol, immediately after a catalyst pretreatment with 1-hexanol during 3 h with 1-hexanol, which was also used as reaction solvent. Such conditions allowed us to achieve a high CHO conversion (95%) with a e-C selectivity of around 100%, improving thus results previously reported.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Beckmann Rearrangement
dc.subject
E-Caprolactam
dc.subject
Reaction Conditions
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Stability the Catalyst
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Al-Mcm-41
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Otras Ingeniería Química
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Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Improvements in the Beckmann rearrangement process by using highly selective mesoporous catalysts
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-01-06T19:56:20Z
dc.journal.volume
221
dc.journal.pagination
175-181
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Vaschetto, Eliana Gabriela. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
dc.description.fil
Fil: Casuscelli, Sandra Graciela. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
dc.description.fil
Fil: Eimer, Griselda Alejandra. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
dc.journal.title
Microporous And Mesoporous Materials
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.micromeso.2015.09.038
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1387181115005272
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