Reaction mechanism analysis of the TiO2 in vanadium - titanium blast furnace (BF) slag

The Blast Furnace hot metal constitute and performance were effect by fluidity and fusion of the slag, as a result, BF smelting course was influenced. In the paper, the titanium slag was researched on, one iron and steel enterprise BF slags were detected and analysis by Scanning Electron Microscope (SEM), Energy Disperse Spectroscopy (EDS) and X - Ray Diffraction (XRD), then the CaO·FeO·2SiO2 and CaO·TiO2 were tested beside the TiC that is the production of the reduction, at the same time, the residue iron was found in slag. By the thermodynamic calculation with the Factsage, the liquid phase regions contain magnesium titanate were changed when the percent of TiO2 was enhanced. The smelting rate of slag system can be accelerated when the viscosity of the slag can be decreased, so the content of TiO2 and B2O3 should be controlled