The caprolactam production technologies were briefly introduced. The latest progress in caprolactam production technology was described in detail, including butadiene process, cyclohexene hydration, cyclohexanone oxime gas-phase Beckmann rearrangement, cyclohexanone oximation. The ammoximation process and hydroxylammonium phosphate ( HPO) process were compared and analyzed for caprolactam. It was pointed out that the ammoximation process had the characteristics of simple process, moderate conditions, low-level three wastes and low investment. The investment prospects of caprolactam projects were analyzed. It was put forward that SINOPEC should carefully conduct project evaluation in order to avoid risk while constructing a caprolactam project applying the cyclohexanone ammoximation process with the independent intellectual property or traditional cy-clohexane route.%简述了己内酰胺生产现状；详述了己内酰胺生产技术最新进展,包括丁二烯工艺、环己烯水合工艺、环己酮肟气相贝克曼重排新工艺、环己酮氨肟化工艺；对比剖析了己内酰胺氨肟化新工艺技术与HPO法技术,指出环己酮氨肟化新工艺具有流程简化,反应条件温和,三废少,投资少的特点；并对己内酰胺项目投资前景进行分析,提出中石化采用环己酮氨肟化法自主技术及环己烷法生产工艺路线新建己内酰胺项目并做好项目评估,规避项目风险.
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