Solid-liquid phase equilibrium data are the basis of chemical separation. Wet residue method is a most commonly used means for determining the equilibrium data of ternary solid-liquid phase. However, when the solid phase contains two or more substances, the traditional wet residue method is confined. To solve this problem, a novel quasi-ternary wet residue method was proposed, which can be applied in quaternary and the above solid-liquid phase equilibria systems. To verify the novel method, case studies are investigated: For the quaternary water-sugar system constitute of D-glucose, D-xylose, L-arabinose and water, the relations of the solid-liquid equilibrium was determined by using the quasi-ternary wet residue method; And the composition of the solid phase in quaternary water-salt systems, i.e., NaCl-KCl-MgCl2-H2O and NaCl-CaCl2-MgCl2-H2O were analysed. The results show that the proposed approach is simple and effective.
Compounds
#
Formula
Name
1
C5H10O5
D-xylose
2
C5H10O5
L-arabinose
3
H2O
water
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.