N. BOUKHALFA1 and A-H. MÉNIAI2
1Department of Industrial Chemistry. University of Biskra, Algeria.
2Department of Industrial Chemistry. University of Constantine, Algeria
In this modeling work, we have applied the Marquardt-Levenberg method to optimize parameters
of a thermodynamic model. The mathematical method was applied for 11 systems including
aqueous solutions of electrolytes. The thermodynamic model used requires three parameters for
optimization. We have elaborated a computer code in FORTRAN language for this purpose. The
results show that the minimization method used is very accurate and converge after a few
iterations. The model parameters are optimized with a good precision.