METHOD FOR OBTAINING TITANIUM-ALUMINIUM ALLOY FROM OXIDE TITANIUM-CONTAINING MATERIAL Russian patent published in 2013 - IPC C22C1/02 C22B5/04 C22B34/12 

FIELD: metallurgy.

SUBSTANCE: method for obtaining titanium-aluminium alloy from oxide titanium-containing material is proposed, which involves preparation of charge containing oxide titanium-containing material, aluminium and calcium-containing material, reduction melting and separation of alloy from slag. As calcium-containing material, calcium fluoride and calcium, or calcium fluoride and calcium oxide, or calcium fluoride and mixture of calcium and calcium oxide is used; charge is prepared so that the following ratio of titanium dioxide, aluminium, calcium and/or calcium oxide, calcium fluoride, wt %, is obtained: TiO₂ : Al: Ca and/or CaO : CaF₂ 1:(0.6-1.6):(0.3-1.0):(0.1-0.3), and reduction melting of the charge is performed at the temperature of 1450-1750°C.

EFFECT: improving quality of the obtained titanium-aluminium alloy at high extraction degree of titanium from oxide titanium-containing material; improving separation of alloy and slag due to formation of low-melting movable slag system.

2 cl, 1 tbl, 4 ex