Recovery of Caprolactam from Waste Water in Caprolactam Production Using Pulsed-sieve-plate Extraction Column  

作　　者：刘建青 谢方友 何潮洪 朱明乔 

出　　处：《Chinese Journal of Chemical Engineering》2002年第3期371-373,共3页中国化学工程学报（英文版）

基　　金：Partly supported by UK's Academic Link with China Scheme (ALCS: SHA/992/307), British Council.

摘　　要：Recovery of caprolactam from waste water of caprolactam production factory was investigated using benzene as solvent in a small-scale pulsed-sieve-plate column. First, liquid-liquid equilibrium (LLE) data were measured, including water-caprolactam-benzene system at low caprolactam concentrations, and waste water-benzene system. Then, the operating regions and mass transfer of the pulsed-sieve-plate column were measured. Finally, the overall apparent heights of a transfer unit based on continuous phase are correlated in terms of the column operation variables.Recovery of caprolactam from waste water of caprolactam production factory was investigated using benzence as solvent in a small-scale pulsed-sieve-plate column.First,liquid-liquid equilibrium (LLE) deta were measured,including water-caprolactam-benzene system at low caprolactam concentrations,and waste water-benzene system.Then,the operating regions and mass transfer of the pulsed-sieve-plate column were measured.Finally,the overall apparent heights of a transfer unit based on continuous phase are correlated in terms of the column operation variables.

关 键 词：pulsed-sieve-plate column extraction e-caprolactam waste water 

分 类 号：X783[环境科学与工程—环境工程]