Hydrodynamic and mass-transfer characteristics of annular centrifugal contactors on the caprolactam recovery from waste liquor
Caprolactam recovery from waste water is an important and challenging problem in industry.In comparison with extraction columns widely applied in the recovery of caprolactam,annular centrifugal contactor is featured by compact structure,convenient maintenance,and high throughput and efficiency with low energy consumption,etc.,which have a wide application in industry.The effects of flow ratio,radius of heavy phase weir and the rotational speeds on entrainment,separation capacity and mass transfer efficiency were studied with annular centrifugal contactors for caprolactam recovery.The results show that the caprolactam with 99.99% purity,the maximum separation capacity of 109L and the highest mass transfer efficiency of 99.8% were obtained.
Annular centrifugal contactor Caprolactam Extraction Separating capacity Mass transfer efficiency
Yan XU Kang TANG Zhi-shan BAI Hua-lin WANG
State-Key Laboratory of Chemical Engineering, East China University of science and technology, Shanghai 200237, China
国际会议
济南
英文
792-798
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）