THE ECOLOGICAL IMPORTANCE OF PROCESSING PHOSPHATE RAW MATERIALS TO PRODUCE FINISHED PRODUCTS

https://doi.org/10.48498/minmag.2025.241.5.004

The article discusses the current problem of the phosphorus industry related to the development of technology for the production of highly effective mineral fertilizers based on substandard phosphate raw materials. Phosphorites from the Chilisai deposit are proposed as such raw materials, which are classified as low-grade due to their high carbonate content (4.56–6.34% in terms of CO2). This creates environmental problems. Scanning electron microscopy and X-ray fluorescence analysis methods were used to study the physico-chemical properties of phosphorite samples. The results showed that phosphorites consist mainly of quartz grains of various sizes (from 0.002 to 15 mm) cemented with phosphate. Based on the conducted research, the optimal parameters of the technological process for obtaining monocalcium phosphate from this raw material have been determined.

A. Anarbayev, *N. Abdimutalip, G. Shalabayeva, A. Beskempirova