Reduction of Titanium Oxide and Thickening of Blast Furnace Slag Bearing Higher Titania

The slag samples that have some titanium oxide reduction grade are reduced with blast furnace slag taken from Pan Zhi Hua Iron & Steel (Group) Co. in site. Then the viscosity and free running temperature of slag samples were measured in laboratory. With the increasing of reduction grade the viscosity and free running temperature of slags would have rising tendency. The mineral structure of the samples is observed in optical microscope, and quantitative analysis of TiC, TiN in the slag samples is made with image analysiser. The results show that the thickening of titanium slag has relationship with the amount of TiC, TiN, which was reduced from titania. So the usage of titanium oxide reduction grade as the index of thickening in blast furnace process is reasonable, and which could represent characteristic of the blast furnace smelting iron ore bearing titanium and vanadium.     

Behaviour of Reduction and Impoverishment of TiO2 in Molten Slag in Smelting Silico-titanium Ferroalloy Using Titanium-bearing slags by Electrosilicothermic Method

In this paper the mathematical model is established on the behaviour ofreduction and impoverishment of TiO2 in molten slag in smelting silico-titanium ferroalloy usingtitanium bearing slag by electrosilicotherinic procese under experimental conditions.It is studied thatthe influences of smelting conditions,such as smelting temperature,initial basicity of burden,quantity of reductant,smelting time and TiO2 content of slag on the reduction and impoverishmentof TiO2 in molten slag.