Selectively obtaining ζ-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, Fernandez, Julio D, Casuscelli, Sandra G, Eimer, Griselda A
Format Journal Article
LanguageEnglish
Published Springer 01.04.2013
Subjects
Ammonium compounds
Ammonium paratungstate
Catalysts
Sulfates
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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.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-013-0971-0