溶剂萃取法从乙二醛水溶液中回收醋酸

Recovery of Acetic Acid from Aqueous Solution of Glyoxal by Solvent Extraction

溶剂萃取法从乙二醛水溶液中回收醋酸李玉安田恒水路秀林（华东理工大学化学工程系，上海２００２３７）关键词萃取乙二醛醋酸１前言乙醛硝酸氧化法制乙二醛的水溶液中含有乙二醛约９％（ｗｔ），醋酸约９％（ｗｔ），硝酸约１％（ｗｔ）及少量草酸、乙醛酸。要得到高质...

The recovery of acetic acid from aqueous solution of glyoxal has been studied experimentally by solvent extraction. The mixed solvents is adopted for the extaction of acetic acid. The extractant consists of tributyl phosphate (TBP) and trioctyl amine (N235) and Kerosene (Ker) with the volume ratio is TBP∶N235∶Ker=50∶20∶30. The suitable operation conditions is the solvent feed ratio S/F=1.3/1 and the theoretical stage number N=4.