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采用仿制的改良型DVorak-Boublik平衡鉴测定了水—N、N—二甲基甲酰胺(DMF)体系的400mmHg下的汽液平衡数据。对所测数据用经验方法进行了热力学一致性的校验,分别用Vanlaar;Margules;Wilson和UNIφAC方程进行了热力学关联和比较,提出了所研究体系的最佳方程和配偶参数,编制了计算活度系数、泡点和汽相组成的计算机程序。为设计现代聚丙烯睛干法纺丝新工艺的溶剂D.M.F的回收所用减压精馏装
Vapor-liquid equilibrium data at 400 mm Hg of a water-N, N-dimethylformamide (DMF) system were determined using a modified version of the modified DVorak-Boublik equilibrium. The thermodynamic consistency of the measured data was verified by empirical methods. The thermodynamic correlation and comparison were made between Vanlaar; Margules; Wilson and UNI? AC equations respectively. The optimal equations and spouse parameters of the system were put forward. Degree coefficient, bubble point and vapor phase of the computer program. For the design of modern polypropylene yarn dry spinning new technology solvent D.M. F recovery vacuum distillation equipment used