Karpets M. Technology of unchloride potassium-magnesium fertilizer conversion from the second langbeinite in shoenite

The thesis is devoted to the creation of technology of alteration of polymineral potassium ore which based on conversion of second langbeinite into schoenite. Researches that dissolution of ore expediently is conducted by water thereupon the degree of separation of valuable components of ore is increased, it is decreased the volumes of liquid phases which it is necessary to heat, a technological process is considerably simplified. The got salt solution therefore it can saturate partly by potassium-magnesium salts of artificial kainite. In consequence of heating of got suspension to 373 K it is passed the conversion with formation of langbeinite which after cooling and separation NaCl it is transformed into schoenite.