Mechano-chemical activation of dolomite

Mechano-chemical activation is a widely used method for increasing the reac tion activity of solids and, consequently, to accelerate solid phase reacti ons and to reduce the temperature of the subsequent thermal decomposition. Thermal decomposition of triboactivated calcium carbonate is a subject of d ifferent studies while dolomite decomposition has limited data. The present work represents a study of thermal stability and phase transiti ons of mechano-chemical activated dolomite under different conditions, name ly using various amounts and kind of milling balls and the duration of acti vation. Temperatures of decomposition of MgCO3 and CaCO3 are specified. The study includes the determination of the thermal stability and the rate of thermal decomposition of activated dolomite.