Author: Намазов, Суннат Зокирович; Темиров, Миркамол

Annotation: Currently, coal is one of the main types of fuel raw materials used in industry, the national economy, and thermal power plants. Coal is a solid fuel that must contain a sufficient amount of heat energy to ensure its economically efficient utilization and should produce minimal technogenic waste during combustion. In this study, the physical and mechanical properties, chemical composition, microscopic characteristics, and gravity beneficiation potential of high-ash coal extracted from the Angren coal mine were investigated. Technogenic waste generated after coal utilization and left untreated causes environmental pollution. Moreover, such waste reduces the calorific value of the fuel. Coal-bearing rocks containing various impurities do not provide efficient heat generation, which leads to increased economic costs and the inefficient use of natural resources.

Keywords: brown coal, coal density, mechanical strength, chemical composition, gravimetric analysis, photocolorimetric analysis.

Pages in journal: 519 - 524