Technological and Economic Estimation of Acid Dissolution of Langbeinite Concentrate with Processing the Obtained Solutions in the Fertilizer
The technological and economic evaluation of two processes of langbeinite concentrate processing in a conditioned fertilizer was carried out with using mineral acids (nitric and phosphatic acid) for its dissolution. The first process allows to obtain non-chloride fertilizer (potassium-magnesium), and the second one allows to obtain not only potassium-magnesium, but such complex nitrogen-phosphorus fertilizer as diammophos.