To separate and purify epichlorohydrin
from water, the
liquid–liquid
equilibrium (LLE) data of water + epichlorohydrin + solvents (n-propyl acetate, 2-ethyl-1-hexanol) at 303.2, 313.2, and
323.2 K were measured at 101.3 kPa. The extraction ability of an extractant
was evaluated using the distribution coefficient (D) and selectivity
factor (S). Simultaneously, the Bachmann and Hand equations were used
to verify the accuracy of the liquid–liquid equilibrium data.
The NRTL and UNIQUAC models successfully correlated the LLE data,
and the root mean square deviation for each model was less than 0.50%.
Finally, GUI-MATLAB tools were employed to confirm that the regression
parameters of the thermodynamic model areconsistent.