Institute of Geological Sciences, NAS of Ukraine

Abstract

The aim of the research is to substantiate the expediency of themineral and radiogeochemical composition comprehensive study of phosphate raw materials from domestic deposits in connection with their promising use in agro-industrial production. Phosphates from five levels of phosphate accumulation (Vendian (Ediacaran), Visean, Alb-Cenomanian, Santon-Campanian and Eocene) from Ukraine territory were studied, as well as for the purpose of comparison –phosphorites from deposits in Syria, Belarus, Russia and Kazakhstan. Optical polarization, scanning electrone microscopy with energy dispersive analysis, X-ray diffractometric analysis and the method of semiconductor gamma spectrometry were used. Study results of phosphate mineral raw materials processing by different methods, including with the involvement of biotechnological methods (using the environmentally friendly leaching agents of microbial origin) are represented. The results obtained are the basis for determining the quality criteria of phosphate raw materials and assessing the prospects for industrial production of phosphorites from domestic deposits of various types. In turn, the improvement of phosphorite processing technology, as well as the involvement of modern biotechnological methods in the production will significantly reduce the cost of mineral fertilizers and related products, which is of economic interest in various sectors of the national economy.