Production method of ϵ-caprolactam

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United States of America Patent

PATENT NO 10457636
APP PUB NO 20190241513A1
SERIAL NO

16318791

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Abstract

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A method for producing ε-caprolactam involves a step of Beckmann-rearranging cyclohexanone oxime in a gas phase in the presence of a zeolite catalyst containing silicon and at least one element selected from alkaline earth metal elements and magnesium. The concentration of the above-described element in the zeolite catalyst is 3 ppm by mass or more and 10000 ppm by mass or less.

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Patent OwnerAddress
SUMITOMO CHEMICAL COMPANY LIMITEDTOKYO 103-6020

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Seki, Kohei Ichihara, JP 23 40
Tanaka, Keisuke Niihama, JP 188 1951
Teramori, Masashi Niihama, JP 1 0
Watanabe, Nobufumi Tsukuba, JP 5 1
Yoshimura, Kazuaki Niihama, JP 16 334

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