METHOD OF DISPOSING SOLID SODIUM CHLORIDE WHILE SELECTIVELY SOLUTION MINING POTASSIUM CHLORIDE

摘要

Disclosed is a method of disposing solid sodium chloride while selectively solution mining potassium chloride from a subterranean deposit containing potassium chloride and sodium chloride. In this novel method an aqueous solvent saturated with respect to sodium chloride, unsaturated with respect to potassium chloride and slurried with solid sodium chloride, is fed into the deposit having a cavity wherein there is face on which rich and lean potassium chloride ore is exposed. Potassium chloride is thereby dissolved while sodium chloride is deposited from the solvent slur-y and the resultant solution withdrawn from the cavity enriched in potassium chloride.