Research Progress in Refining Process for Production of Caprolactam by Beckman Rearrangement Reaction  

作　　者：Wang Hao Zhang Dejiang Fan Yingqi Xie Li Luo Yibin Zong Baoning 

机构地区：[1]SINOPEC Research Institute of Petroleum Processing

出　　处：《China Petroleum Processing & Petrochemical Technology》2019年第2期10-18,共9页中国炼油与石油化工（英文版）

摘　　要：Caprolactam, which is mainly produced via the Beckmann rearrangement reaction, is an important chemical material. The strict specifications of caprolactam products make the refining process of caprolactam extremely important. According to the different rearrangement process, the refining process of caprolactam is also different. The main refining sequence of liquid phase rearrangement products includes extraction, ion exchange, hydrogenation, and distillation. The refining process of gas phase rearrangement products is conducted mainly through distillation, crystallization, and hydrogenation. In this paper, the research progress of caprolactam refining technology will be summarized according to different rearrangement reaction processes, which will provide a reference for the selection of appropriate caprolactam refining process.Caprolactam,which is mainly produced via the Beckmann rearrangement reaction,is an important chemical material.The strict specifications of caprolactam products make the refining process of caprolactam extremely important.According to the different rearrangement process,the refining process of caprolactam is also different.The main refining sequence of liquid phase rearrangement products includes extraction,ion exchange,hydrogenation,and distillation.The refining process of gas phase rearrangement products is conducted mainly through distillation,crystallization,and hydrogenation.In this paper,the research progress of caprolactam refining technology will be summarized according to different rearrangement reaction processes,which will provide a reference for the selection of appropriate caprolactam refining process.

关 键 词：CAPROLACTAM BECKMAN REARRANGEMENT REFINING OXIMATION 

分 类 号：TE[石油与天然气工程]