Druckerei und Verlag Mainz - Aachen

Gas-phase Beckmann rearrangement of cyclohexanone oxime to ϵ-caprolactam over silica supported niobia catalysts

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    Autor: Maronna, Marius Maximilian
    ISBN: 978-3-95886-184-8
    Auflage: 1
    Seiten: 170
    Einband: Softcover

Zum Inhalt

In most of the industrial processes for the production of ϵ-caprolactam the final synthesis step comprises the homogeneous liquiq-phase Beckmann rearrangement of cyclohexanone oxime catalyzed by oleum. The substantial amount of ammonium sulphate generated as co-product as well as the corrosive process media can lead to certain disadvantages. Summarizing, this work contributes essentially to an increased understanding an improvement of the inexpensive, amorphous Nb0x / Si0x heterogeneous catalyst for the gas-phase Beckmann rearrangement to overcome the disadvantages of the homogeneously catalyzed reaction.

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