STUDY OF DECOMPOSITION OF LOW-RATED PHOSPHORITES OF THE AKZHAR DEPOSIT BY GREAT EXCESS OF PHOSPHORIC ACID

Abstract

The article describes about the phosphorite deposit and its reserves. At present, the revived production of phosphorus and complex fertilizers is based mainly on Karatau phosphorites. However, the reserves of rich phosphate ores in Karatau are being depleted, and in recent years there has been a need to involve low-grade natural phosphates in circulation. Therefore, the integrated use of mineral raw materials and ensuring the environmental safety of the technologies used are now becoming more and more relevant. The article provides about IR spectroscopy and XRF analysis of the Akzhar phosphorite deposit in the Karatau basin. And also, the results of the chemical composition of phosphorite and calculations of the kinetics of the decomposition of phosphorite of the Akzhar deposit of the Karatau basin with a 5-fold excess of phosphoric acid are presented.