TITANIUM-CONTAINING CHARGE FOR CHLORINATION (VERSIONS) AND METHOD OF ITS PREPARATION

摘要

FIELD: nonferrous metallurgy, particularly, preparation of initial materials for chlorination. SUBSTANCE: titanium-containing charge for chlorination includes titanium slag and carbon-containing material having in its composition water and silicon dioxide, and additionally containing sodium chloride or spent electrolyte in the form of waste of magnesium production by electrolysis of salts with the following amounts of components, wt.%: titanium slag (content of TiO₂0,50.0-70.0; carbon-containing material (content of C), 10.0-30.0; sodium chloride, 10.0-20.0; water, no more 0.4; silicon dioxide, no more 5.0; or titanium-containing slag (content of TiO₂), 50.0-70.0; carbon-containing material (content of C), 10.0-30.0; spent electrolyte in the form of waste of magnesium production by electrolysis of molten salts (content of chlorine ions), 4.5-8.0; water, no more 0.4; silicon dioxide, no more 5.0. Method of charge preparation includes crushing, drying and grinding of titanium slag and carbon-containing material. After grinding of titanium slag, introduced into it additionally is ground salt of sodium chloride or spent electrolyte, and components are mixed with ratio of (3.0-5.0): 1 and ground to obtain slag-salt mixture. Then, introduced into mixture is carbon-containing material in ratio of 1:(1.0-5.0), mixed with simultaneous grinding to have titanium-containing charge and before supply for chlorination, charge is additionally mixed with the help of compressed air. EFFECT: higher recovery of titanium from charge. 7 cl, 2 ex