Selectively Obtaining ε-Caprolactam from Cyclohexanone Oxime Over Al-MCM-41 Catalysts

Catalysts with Al-MCM-41 structure were prepared by direct hydrothermal synthesis. Nest silanols with weakly acid character, associated to the presence of framework Al, have been identified. These silanols seem be the active sites for the rearrangement of cyclohexanone oxime. Selectivity to caprolac...

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Bibliographic Details
Published inCatalysis letters Vol. 143; no. 4; pp. 333 - 338
Main Authors Vaschetto, Eliana G., Fernández, Julio D., Casuscelli, Sandra G., Eimer, Griselda A.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.04.2013
Springer
Springer Nature B.V
Subjects
Caprolactam
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Colloidal state and disperse state
Cyclohexanone
Exact sciences and technology
General and physical chemistry
Industrial Chemistry/Chemical Engineering
Organometallic Chemistry
Physical Chemistry
Porous materials
Selectivity
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Silanol nests
ε-Caprolactam
Acidity
Al-MCM-41
Beckmann rearrangement
Heterogeneous catalysis
Silanol
Oxime
Porous material
Catalyst
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Summary:Catalysts with Al-MCM-41 structure were prepared by direct hydrothermal synthesis. Nest silanols with weakly acid character, associated to the presence of framework Al, have been identified. These silanols seem be the active sites for the rearrangement of cyclohexanone oxime. Selectivity to caprolactam of 100 % was obtained. Graphical Abstract
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-013-0971-0