Phase composition of titanium-containing raw materials depending on its titanium oxide content

Abstract

The article deals with the phase equilibrium in titanium-containing slag from metallurgical processing of ilmenite concentrates of Shokash deposit on the basis of five-component system TiO2-Al2O3-SiO2-MgO-CaO have been studied by thermodynamic analysis (TDA). The phase equilibria in two four-component systems CaO-MgO-Al2O3-SiO2 and TiO2-MgO-Al2O3-SiO2, which are part of the five-component system TiO2-Al2O3-SiO2-MgO-CaO were clarified and corrected. Thus, the data on the phase compositions of congruently (stably) melting compounds of titanium slag and slag of aluminum- and aluminosilicothermic ferrotitanium as well as slag melts from melting of titanomagnetite ores, etc. have been obtained.

Keywords

• titanium slag, phase composition, TiO₂-Al₂O₃-SiO₂-MgO-CaO system, multicomponent oxide systems, thermodynamic-diagram analysis