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Summary: Activity coefficients will be experimentally determined
in multicomponent systems cyclohexane(hexane)-water-C1-C4 alcohols.
Application of several models for the prediction of activity coefficient
will be analyzed, such as ASOG, UNIFAC, NRTL and modification of Wilson
model. Procedures will be developed for calculating activity coefficients
and phase equilibria. Depandance of refractive index on molecular structure
for pure solvents, and Flory-Huggins interaction parameters for systems
Cellulose diacetate - Acetone (Formic acid or Dimethylformamide) will be
Research goals: Purpose of the project is experimental determination
of basic thermodynamic quantities, development of numerical methods and
improvements in existing methods of calculating phase equilibria. The
investigation results will be a basic scientific contributions to numerical
methods and will provide new body of knowledge. Other information about the project.