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US 5,312,915 AGranted
Process for producing epsilon-caprolactam
AssigneeSumitomo Chemical Company, Limited
InventorsTatsuaki Yashima, Takayuki Komatsu
Life of this patent
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Abstract
.epsilon.-Caprolactam is produced efficiently with high selectivity by contacting cyclohexanone oxime in gas phase with a solid catalyst which is a crystalline zeolite having a pore size smaller than molecular size of cyclohexanone oxime or a crystalline zeolite having closed pores.
Claims11
A process for producing .epsilon.-caprolactam by contacting cyclohexanone oxime in gas phase with a solid catalyst, wherein a crystalline zeolite having a pore size smaller than molecular size of cyclohexanone oxime or a crystalline zeolite having closed pores is used as the solid catalyst.
Dependencies are inferred from the claim text.