A. Korytseva, A. Navrotski
ABSTRACT
The enthalpy of dissolving slag-forming oxides in slag CaO–SiO2–Al2O3–MgO at 1450 C was measured by drop-calorimetry. The enthalpy of dissolution becomes more exothermic in the order of Fe2O3, MgO, Al2O3, CaO, SiO2, which reflects the relatively basic nature of this slag with a low silica content. The observed trends are consistent with the available other melts, while the observed differences in the values reflect differences in the acid-alkaline character of the melts. The obtained results give reliable data for the future modeling of the thermal balance of both steelmaking furnaces and various processes in geological and ceramic systems.
KEYWORDS:
calorimetry, slag, enthalpy, iron oxide, aluminum oxide, silicon oxide
DOI: 10.1134/S0235010619010092