| 摘要 |
<p>A process for the preparation of ε-caprolactam which comprises converting cyclohexanol prepared by the hydration of cyclohexene into cyclohexanone through dehydrogenation, converting the cyclohexanone into cyclohexanone oxime and converting the cyclohexanone oxime into ε-caprolactam through the Beckmann rearrangement, characterized in that the content of methylcyclopentanones in the cyclohexanone to be converted into the oxime is reduced to 400 ppm or below. ε-Caprolactam which is not inferior to that prepared by the prior art process in quality can be prepared from cyclohexene as the starting compound at a low cost.</p> |
