METHOD OF PRODUCING HIGH TITANIUM FERROALLOY OUT OF ILMENITE Russian patent published in 2008 - IPC C22C33/04 

FIELD: metallurgy.

SUBSTANCE: method includes preliminary introducing of iron scrap into electric arc furnace, melting it and removing off the created slag, loading after tapping at the first stage of charge of ilmenite, crushed electrodes, lime or limestone, reduction and melting of iron, tapping of slag, containing titanium oxide, preparation of the basic stock for the second melting stage; the basic stock consisting of a crushed slag containing titanium oxide received at the first stage and aluminium; then melting of the basic stock for production of ferroalloy. Prepared basic stock is used as a filler, out of which an expendable electrode in a metal coat is formed which is melted under a flux layer till creation of ferrotitanium containing 68-78.7 mas.% of titanium, 19.3-30.0 mas.% of iron and up to 1.98 mas.% of additives.

EFFECT: reduces prime cost of a finished product, excludes possibility of contamination of ferroalloy air with oxygen at titanium reduction, produces a finished product in form of a compact commodity ingot of ferrotitanium.

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