Layered silicate catalysts pillared with metal oxide

摘要

The present invention relates to porous catalysts comprising layered silicate and metal oxides, and a method of preparing epsilon-caprolactam from cyclohexanone oxime using the catalyst. This new catalyst can resolve the environmental and safety problems arising from conventional liquid acid process. Also the present catalyst solves the problem of short lifetime of current solid acid catalysts. Moreover, the present catalyst provides higher selectivity and yield.