ORGANOMINERAL FERTILIZERS BASED ON NITROGEN ACID PROCESSING OF ANGRENSK BROWN COAL AND PHOSPHORITES OF CENTRAL KYZYLKUM

Abstract

The article presents the results of a study of the process of obtaining organomineral fertilizers by oxidation of Angren brown coal with nitric acid and subsequent decomposition by oxidation products of ordinary phosphorite flour, dust-like fraction, thermally and chemically enriched concentrates of phosphorites of the Central Kyzyl Kum. From all types of raw materials, even such poor ones as ordinary phosphate flour and pulverized fraction, highly effective nitrogen-phosphorus-humic fertilizers are obtained.