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Abstract

The present invention provides a method which can produce ε-caprolactam with a good selectivity by reacting cyclohexanone oxime with a good conversion in a vapor phase Beckmann rearrangement reaction. Disclosed is a method for producing ε-caprolactam, which comprises performing a vapor phase Beckmann rearrangement reaction of cyclohexanone oxime in the presence of a pentasil type zeolite, wherein the pentasil type zeolite is a zeolite obtained by subjecting a mixture containing a silicon compound, water, and a compound represented by formula (I):

description='In-line Formulae' end='lead'[(R¹)₃N⁺—(CH₂)_m—N⁺(R¹)₂—(CH₂)_m—N⁺(R¹)₃]·3/n(A)  (I)description='In-line Formulae' end='tail'

wherein R¹ represents an alkyl group having 1 to 4 carbon atoms, A represents an n-valent anion, m represents an integer of 5 to 7, and n represents an integer of 1 to 3, to a hydrothermal synthesis reaction.

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First Claim