VAPOR-LIQUID-EQUILIBRIA AND ENTHALPIES OF MIXING FOR THE BINARY-SYSTEM WATER PLUS N-METHYL-2-PYRROLIDONE IN THE TEMPERATURE-RANGE 80-140-DEGREES-C

Authors
NOLL O FISCHER K GMEHLING J
Citation
O. Noll et al., VAPOR-LIQUID-EQUILIBRIA AND ENTHALPIES OF MIXING FOR THE BINARY-SYSTEM WATER PLUS N-METHYL-2-PYRROLIDONE IN THE TEMPERATURE-RANGE 80-140-DEGREES-C, Journal of chemical and engineering data, 41(6), 1996, pp. 1434-1438
Citations number
21
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Journal of chemical and engineering data → ACNP
ISSN journal
00219568
Volume
41
Issue
6
Year of publication
1996
Pages
1434 - 1438
Database
ISI
SICI code
0021-9568(1996)41:6<1434:VAEOMF>2.0.ZU;2-V
Abstract
Precise P-x data have been measured for the binary system water+N-meth yl-2-pyrrolidone (NMP) at (80 and 110)degrees C using a static apparat us. Furthermore, enthalpies of mixing have been determined at (90, 140 , and 143)degrees C with an isothermal flow calorimeter. Temperature d ependent NRTL parameters have been fitted simultaneously to all the ex perimental data. The experimental data have been compared with the pre dicted results of the modified UNIFAC method, for which a new flexible lactam (cyclic amide) group was defined.