DEM与溶剂等液液平衡数据测定及影响因素关联  

Liquid-Liquid Equilibrium Data Determination for DEM and Solvent and Its Correlation with the Affecting Factors

作　　者：职慧珍[1] 顾正桂[1] 

机构地区：[1]南京师范大学化学与环境科学学院,南京210097

出　　处：《南京师范大学学报（工程技术版）》2004年第1期67-69,共3页Journal of Nanjing Normal University(Engineering and Technology Edition)

摘　　要：采用液液平衡釜测定二乙氧基甲烷 (DEM)和乙醇水溶液的萃取分离结果 ,研究强制搅拌速度、搅拌时间、静置时间、平衡温度等因素对液液平衡组成的影响 ,采用最小方差法关联液液组成与搅拌速度等因素之间的关系 ,确定了分离过程中最适宜的外界条件 。The extractive separation for water solution of diethoxy methane (DEM) and ethanol has been determined by using liquid-liquid equilibrium still. The effect of forced stirring speed and time, stand still time and equilibrium temperature on the components of the system in equilibrium is studied. The liquid-liquid composition and affecting factors such as stirring speed, etc . are correlated by using least square method. The most suitable external conditions have been optmized for the separation process, providing the basis for further industrial test.

关 键 词：DEM 水 液液分离 液液平衡 数据测定 二乙氧基甲烷 乙醇 最小方差法 萃取 

分 类 号：O658.2[理学—分析化学] O623.11[理学—化学]