Discussion on Smelting Technology of a High Chromium Vanadium Titanium Magnetite

This paper deals with a process for separation,recovery and extraction of various beneficial metals from high chromium vanadium-titanium magnetite.The main equipment of the process consists of a melting furnace,a chlorination furnace,several separation furnaces and their ancillary equipment.The mineral powder,coal powder,solvent powder and so on are reduced in the smelting furnace at high temperature.The resulting molten titanium-bearing slag flows into the chlorination furnace for high temperature chlorination.The resulting titanium tetrachloride gas is purified for production of titanium tetrachloride.The molten iron in the smelting furnace flows through several separate furnaces in turn.Each furnace bottom is sprayed with different separating agents or gases,which reacts with some beneficial metal in molten iron to form a less dense slag separated from the molten iron and discharged.The slag containing titanium slag,vanadium slag,chromium slag,cobalt slag and nickel slag can be obtained.The molten iron is discharged from the tail of the last separation furnace.A variety of beneficial metals are extracted from slag and flue dust discharged from smelting furnace,chlorination furnace and separation furnace by existing processes.This paper introduces the design idea,technological process,main equipment and its structure,main technical features,advantages and disadvantages,and compares the technology,economy and environmental protection with the current relevant technology,and discusses the feasibility of the technology.The main technical problems in the process are also discussed.