tailings

In this article the new technological process of complete processing of solution Stebnik’s tailings on the basis a complex experimental researches, which involves the use of standard equipment, is developed. It enables to get two conditioned products (sodium chloride and bishofit) and potassium-magnesium fertilizer. The cyclic using of organic extractant in the process enables dramatically reduce material costs of processing tailings solution and provides ecological completeness of the process.

In this paper the possibility of obtaining almost non-chloride products with the help of the experimental studies of selective extraction of sodium and potassium chlorides from intermediate product of processing solutions tailings potash industries - sediment of potassium-magnesium salts with a high chloride content (over 25 %) using aqueous organic extractant (acetone, methanol, ethanol) was proved. It is shown that to achieve a high yield of product the extraction process should be carried out in 40% aqueous acetone.