VAPOR-LIQUID-EQUILIBRIUM CALCULATION OF THE SYSTEM WATER-NITRIC ACID OVER THE ENTIRE CONCENTRATION RANGE

Authors
BRANDANI S BRANDANI V
Citation
S. Brandani et V. Brandani, VAPOR-LIQUID-EQUILIBRIUM CALCULATION OF THE SYSTEM WATER-NITRIC ACID OVER THE ENTIRE CONCENTRATION RANGE, Fluid phase equilibria, 114(1-2), 1996, pp. 37-45
Citations number
9
Categorie Soggetti
Engineering, Chemical","Chemistry Physical
Journal title
Fluid phase equilibria → ACNP
ISSN journal
03783812
Volume
114
Issue
1-2
Year of publication
1996
Pages
37 - 45
Database
ISI
SICI code
0378-3812(1996)114:1-2<37:VCOTSW>2.0.ZU;2-9
Abstract
The vapor-liquid equilibrium of the system water-nitric acid has been described. The activity coefficients in the liquid phase are evaluated according to a new model. This model combines the effect of the long range forces expressed by a Debye-Huckel contribution on a mole fracti on basis, with the effect of short range forces expressed by a virial expansion of the NRTL equation. The proposed model can be used to desc ribe the vapor-liquid equilibrium of the system water-nitric acid from 20 to 120 degrees C over the entire concentration range.