Phase Equilibria in the Na,K,Mg,Ca∥SO4,Cl-H2O system at 50°C in the Sylvite Crystallization Region

Phase equilibria of the Na,K,Mg,Ca parallel to SO4,Cl-H2O system at 50 degrees C in the sylvite (KCl) crystallization region were studied using the translation method. Sylvite was found to be involved, as an equilibrium phase of the title system at 50 degrees C, in 15 invariant points, 37 monovariant curves, and 29 divariant fields. A fragment of a schematic equilibrium phase diagram of the title system in the sylvite crystallization region was constructed.