METHOD OF PRODUCING POTASSIUM AND MAGNESIUM COMPOUNDS Russian patent published in 1995 - IPC

FIELD: inorganic chemistry. SUBSTANCE: method involves the process of underground hydration of langbeinite rock followed by dissolving at the place of occurrence hydrated rock with water or solutions of sodium chloride or magnesium sulfate. These salts were pumped through holes, and production solutions were obtained through the same holes. To accelerate hydration process water or salt solutions were pumped into holes after preliminary acidification or saturation with air. EFFECT: improved method of producing. 3 cl, 2 tbl