Results 141 to 150 of about 768 (174)

On the application of the NRTL method to ternary (liquid+liquid) equilibria

Journal of Chemical Thermodynamics, 2005
Abstract The use of the NRTL method for correlating experimental data in ternary (liquid + liquid) equilibria is considered. It is concluded that parameters obtained by direct correlation techniques have not a direct physical meaning. Also, it is shown that the resulting values for these parameters depend on the number of experimental points ...
Jorge Alvarez Juliá, Carmen R. Barrero, María E. Corso, María del Carmen Grande, Carlos M. Marschoff   +4 more
exaly   +2 more sources

Application of Modified NRTL Models for Binary LLE Phase Characterization

Industrial & Engineering Chemistry Research, 2018
Phase characterization of liquid–liquid mixtures is required in numerous chemical process calculations. The original nonrandom two-liquid (NRTL) model is used widely in describing liquid–liquid equilibria (LLE). Application of this model, however, is affected by (a) lack of reliable parameters, (b) a wide range of acceptable parameter values, and (c ...
Younas Dadmohammadi, Solomon Gebreyohannes, Brian J. Neely, Khaled A. M. Gasem   +3 more
openaire   +1 more source

Binary liquid-liquid equilibria, multiple solutions for the NRTL equation

Fluid Phase Equilibria, 1983
Abstract The mathematical multiplicity of solutions for the NRTL equation appears to raise a delicate problem that it would be dangerous to neglect. The method we propose is based on the use of a double dichotomy and gives all the mathematical solutions.
J. Jacq, L. Asselineau
openaire   +1 more source

Development of the NRTL functional activity coefficient (NRTL-FAC) model using high quality and critically evaluated phase equilibria data. 2

Fluid Phase Equilibria, 2023
Jaber Yousefi Seyf, Leyla Nasiri, Bijan Medi   +2 more
openaire   +1 more source

Correlation and prediction of drug molecule solubility with the NRTL-SAC model

2006
Abstract The recently proposed Nonrandom Two-Liquid Segment Activity Coefficient model (NRTL-SAC) of Chen and Song (2004) provides a simple and thermodynamically consistent framework to correlate and predict drug solubility in pure solvents and mixed solvents, based on a small initial set of measured solubility data. Used within a process simulator,
Chau-Chyun Chen, Peter A. Crafts
openaire   +1 more source

An ion-based nonelectrolyte NRTL-NRF for aqueous electrolyte solutions

Calphad, 2015
Abstract An excess Gibbs free energy model that is composed of the nonelectrolyte NRTL-NRF model as short range contribution and Pitzer–Deby–Huckel equation as long range part is applied to model strong aqueous electrolyte solutions. The ion specific interaction energy parameters appearing in the short range part of the model are obtained for water ...
openaire   +1 more source

Correlation of heats of mixing data by the NRTL and UNIQUAC models.

Thermochimica Acta, 1992
Y. Demirel, H.Ö. Paksoy, H. Gecegörmez
openaire   +1 more source

Some Remarks to Marina's Modification of the NRTL Equation

Industrial & Engineering Chemistry Process Design and Development, 1974
Josef Suska, Jaroslav Matous
openaire   +2 more sources

Estimation of e-NRTL binary interaction parameters and its impact on the prediction of thermodynamic properties of multicomponent electrolyte systems

Fluid Phase Equilibria, 2022
JOSÉ Luis Valverde, VÍCTOR R Ferro
exaly  

Correlation and Prediction of VLE Ternary Data by the NRTL Equation

Zeitschrift für Physikalische Chemie, 1988
P. Gierycz, A. Bylicki
openaire   +1 more source