1·The cyclohexanone column was used to separate cyclohexanol and cyclohexanone by the difference of their boiling points in production of hexanolactam.
在己内酰胺生产过程中，环己酮蒸馏塔的作用是利用环己酮与环己醇沸点差异，将二者分离。
2·The trends of direct oxidation of cyclohexanone to hexanolactam and developments of different routes in preparation of feed stocks of nylon-66 are also described.
简介了环己酮直接氧化制己内酰胺的发展趋势及尼龙-66生产原料路线的开发动向。
3·The wastewater of hexanolactam (nylon) fiber production in Shijiazhuang Synthetic Fiber manufactory is high concentrated with organic nitrogen compounds.
己内酰胺锦纶化纤废水属于高含氮高浓度有机废水。