DEVELOPMENT OF TECHNOLOGY FOR PROCESSING WASTE ENRICHMENT OF PHOSPHORITES OF THE CENTRAL KYZYL KUM FOR PHOSPHORUS AND NITROGEN-CALCIUM FERTILIZERS

13.02.2024 International Scientific Journal "Science and Innovation". Series A. Volume 3 Issue 2

Haydarov Bekzod, Shukurov Abduvali, Yusufova Nazokat

Abstract. The world's population has exceeded 8 billion people and the problem of food supply has become even more acute due to the reduction of arable land, fresh water reserves and soil salinization. Mineral fertilizers are the main factor ensuring the growth of agriculture. The chemical industry of the Republic meets the needs of the agro-industrial complex with nitrogen and potassium fertilizers in sufficient quantities, which cannot be said about phosphorus-containing fertilizers. Of all the types of mineral fertilizers produced in the country, only simple, enriched superphosphates and nitrocalcium phosphate fertilizers contain calcium, which is a macronutrient and helps reduce soil salinity. All this indicates the need to increase the production of phosphorus- and calcium-containing fertilizers

Keywords: nitrocalcium, ammoniation, nitric acid decomposition, mineralized mass