S. Peshkin, А. V. Маlygin, А. V. Zhdanov, Е. G. Dmitrieva
KEYWORDS:
pelletizing, agglomeration, low-silica titanomagnetites, softening temperatures
ABSTRACT:
Temperatures of the beginning and the end of softening for high-base agglomerates and flux-free pellets made of low- silica titanomagnetite concentrate were established. The experimental data were compared to calculations of melting temperatures, obtained on the basis of empirical formulas. The comparison of experimental and calculated data revealed that temperatures of the softening beginning of agglomerates made of low-silica titanomagnetite concentrate is determined by its chemical composition, mainly by iron and titanium oxides content. Temperatures of the end of softening is connected with the mineralogical composition of minerals, in particularly, with the presence of low melting phases. The higher the slag-forming oxides content in agglomerate the closer experimental data to calculations.