METHOD OF PRODUCTION OF TITANIUM-CONTAINING PRODUCT AND DEVICE FOR REALIZATION OF THIS METHOD Russian patent published in 2007 - IPC C22B34/12 C22B5/04 

FIELD: metallurgy.

SUBSTANCE: proposed method is used in processing the ilmenite concentrate into ferro-titanium, highly titanous slag suitable for production or titanium sponge or pigment and into carbon-free iron suitable for fusion with metallic chromium into alloy used for production of tube or sheet stainless steel billets. Proposed method includes forming liquid metal substrate in melting unit, setting the substrate in rotation by means of electromagnetic field for forming of parabolic dimple to which titanium-containing burden is fed; this burden is molten for slag by energy of electromagnetic field and metals are reduced from slag oxides with the aid of reductant; reduced metals are fused together with substrate and slag is added with reductant oxide and metal and slag phases drained from melting unit. Portion of titanium-containing burden is delivered in two parts: first part is delivered to dimple for metal substrate formed from ferro-aluminum; during delivery of this part of portion, portion of fluor spar is molten in dimple for reduction of metals from oxides of first part of burden portion by substrate aluminum and fusing them with metal substrate which is lean in aluminum; aluminum oxide thus formed is dissolved in fluor spar to tolerable dissolving limit at temperature of molten fluor spar of 1600-1700°C. Fluor spar and dissolved aluminum oxide from melting unit are drained into ladle and are cooled to 1450°C for conversion of aluminum oxide into solid phase which is separated from molten fluor spar together with part of aluminum oxide remaining in it. After drainage of fluor spar and dissolved aluminum oxide on metal substrate whose chemical composition is changed, second part of burden portion is delivered and is molten; metal oxides in second part of burden portion are reduced by titanium of substrate; oxide forming free energy of these oxides is lesser than that of titanium oxide; thus, highly titanous slag is formed; 70-80% of metal phase lean in titanium is drained from melting unit. Titanium is reduced from oxide of slag remaining in melting unit and is fused together with remaining metal phase; aluminum oxide formed at reducing of titanium is fused together with fluor spar which is delivered to melting unit together with reductant. Then, fluor spar is fully drained from melting unit together with dissolved aluminum oxide, after which metal phase added with titanium is fully drained and substrate is immediately formed from ferro-aluminum in melting unit and procedure is repeated.

EFFECT: reduction of power requirements; waste-free technology.

7 cl, 2 dwg