METHOD FOR THE PROCESSING OF TITANIUM-CONTAINING FEEDSTOCK

摘要

A method for the processing of titanium-containing feedstock for obtaining high-titanium slags and alloyed low-carbon cast iron consists in that titanium-containing feedstock is melted in the presence of a reducing agentanthracite, as well as in the presence of metal titanium and/or a titanium-containing material which comprises titanium alloys or residue of unchlorinated titanium slags which is formed in the production of titanium tetrachloride and consists of titanium slag and petroleum coke, used in an amount from 7 to 13% by weight of starting components. The melting is conducted with the formation of gaseous phase over the surface of starting feedstock, the temperature of the gaseous phase being from 500 to 900.degree.C and pressure from 0.1 to 0.2 mm H2O. The method enables the production of high-titanium slags containing 92-94% by weight of TiO2 and less than 5% by weight of FeO. Rate of titanium extraction is 9798%. The use of the method according to the invention brings a solution to such important problem as utilization of offgrade titanium wastes which could not be sold so far.