The thermal behavior of different fly ashes from the electrical precipitators of various pulverized carbon fuel-fired boilers
was investigated by means of simultaneous TG, DTG, DTA and EGA analysis. The carbon and sulfur contents of the samples were
determined by gastitrimetry. The compositions of the samples were examined by X-ray diffraction. The quantitative oxide analysis
of the ashes was carried out by means of a classical method.