STUDY OF THE PROPERTIES OF HUMIC ACIDS FROM BROWN COAL OF THE KUZNETSK DEPOSIT

The scientific novelty of this research lies in the detailed analysis of the physical and chemical properties of brown coal from the Kuznetsk deposit, employing advanced research techniques. Systematic data on the elemental composition, ash content, moisture content, and volatile matter yield of this coal have been obtained and presented. Particular emphasis was placed on examining the influence of functional groups on coal reactivity—a level of detail previously unexplored for this deposit. The relevance of this work stems from its in-depth and structured analysis of the properties of humic acids derived from Kuznetsk brown coal using modern analytical methods. For the first time, the chemical structures of humic acids have been identified and characterized, enabling a more comprehensive understanding of their composition and functional characteristics. Methods such as infrared spectroscopy, elemental analysis, and thermogravimetric analysis allowed for the identification of key functional groups in brown coal and humic acids, as well as an assessment of their thermal stability and reactivity. These findings enable an evaluation of their potential applications in fields such as agrochemistry, environmental science, and medicine. Consequently, this research makes a substantial contribution to coal chemistry and environmental studies and provides a foundation for further research and development on the use of humic acids as eco-friendly additives and sorbents.