Azeotropic Data for Binary and Ternary Systems at Moderate Pressures

For the synthesis and design of distillation columns the knowledge of azeotropic points is most important. Therefore, a computerized data bank for azeotropic data has been established at the University of Oldenburg to supplement the existing mixture information stored in the Dortmund Data Bank. To check questionable literature data and to extend the contents of the computerized data bank, more than 500 azeotropic and zeotropic data for binary and ternary systems have been measured up to pressures of 3.5 bar with the help of a wire band column. A total of 38 binary azeotropic and zeotropic data for various ethers (MTBE, TAME, TAEE, ETBE, IPTBE) with different alcohols have already been published (Gmehling et al., 1995). A total of 273 binary and 28 ternary azeotropic and zeotropic data are reported in this paper.