METHOD OF DEHYDRATING SOLUTIONS OF CALCIUM OR MAGNESIUM CHLORIDE Russian patent published in 2005 - IPC

FIELD: chemistry.

SUBSTANCE: method comprises dehydrating solutions of calcium chloride or magnesium chloride in fluidized bed apparatus by spraying the solution in the layer through nozzles with control of granulometric composition of the dehydrated product by means of control of the spraying intensity, separating a portion of the finishing product and its processing by means of initial solution to produce suspension. In order to processing the portion of the finishing product, the initial solution is used that is composed of admixture that is difficulty soluble in the concentrated solution of the finishing product, the suspension produced is separated to extract nonsoluble admixtures, and the solution is directed to the dehydration in the fluidized bed apparatus. In order to processing a portion of the finishing product, the initial solution is used that is composed of such compositions as sodium chloride, potassium chloride, calcium sulfate , and calcium or magnesium hydroxy acid.

EFFECT: simplified process.

2 cl, 2 tbl, 2 ex