Efficiency of Thermal Plasma Treatment of Aluminosilicate Particles

The paper studies the efficiency of plasma-assisted synthesis of bottom ash-based microspheres in the light of the liquid phase formation. The studies also include the assessment of morphology of obtained microspheres. It is shown that microspheres with high sphericity can be obtained with thermal plasma treatment. During thermal plasma treatment, the amount of silicon and aluminum relatively grows due to the decrease in the amount of calcium, titanium, magnesium, potassium, and natrium. The high content of silica and alumina in obtained microspheres indicates to their high thermal, chemical, and mechanical resistance.