Method and system for preparing caprolactam

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United States of America Patent

PATENT NO 9902700
APP PUB NO 20170121289A1
SERIAL NO

15350279

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Abstract

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The present disclosure provides a method for preparing a caprolactam and the method includes steps of subjecting cyclohexanone oxime and sulfuric acid to a Beckmann rearrangement reaction to obtain a rearrangement mixture; neutralizing the rearrangement mixture and extracting the neutralized rearrangement mixture using an organic solvent sequentially; and subjecting the extracted organic solution to a hydrogenation reaction so as to simplify the process to produce a high quality caprolactam.

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Patent Owner(s)

Patent OwnerAddress
CHINA PETROCHEMICAL DEVELOPMENT CORPORATIONTUNGHSING ROAD FLOOR 8-11 NO 12 TAIPEI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hwang, Jih-Dar Taipei, TW 6 7
Kung, Yung-Shun Taipei, TW 3 2
Tsai, Yao-Ching Taipei, TW 24 32

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