摘要
一、前言 用二甲基甲酰胺(以下简称DMF)溶剂分离1,3-丁二烯萃取精馏过程所涉及的有关物系的气液平衡数据,多数未见公开发表,利用文献报道的少量数据,结果不够令人满意。因此,我们用实验方法对C_4馏分中的主要组分在DMF中的无限稀释活度系数进行了测定。
The activity coefficients at infinite dilution of C4 hydrocarbons (12 components) in DMF solvent under six different temperatures have been determined by inert gas stripping and GC method. The experimental data are related as follows: ln/i∞ = Ai + 100Bi/T . It is useful for process designing. The reliability of a device is confirmed by determining the limiting activity coefficients of benzene-DMF and hexamethylene-DMF systems. The experimental results are in agreement with literature data.
出处
《色谱》
CAS
CSCD
北大核心
1993年第5期276-277,共2页
Chinese Journal of Chromatography
