Phase equilibria in the Na,K,Mg,Ca[Verbar]SO sub(4) ,Cl-H sub(2) O system at 50 degree C in the sylvite crystallization region

Phase equilibria of the Na,K,Mg,Ca[Verbar]SO sub(4),Cl-H sub(2)O system at 50 degree 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 degree 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.