Recovery of vanadium from pig iron

Details Recovery of vanadium from pig iron Recovery of vanadium from pig iron

C - Chemistry, Metallurgy

21

B

53/93

C21B 3/04 (2006.01)

Patent

CA 1097083

ABSTRACT OF THE DISCLOSURE An improved method is described for processing pig iron containing vanadium to obtain a slag containing at least 8 percent vanadium and having a vanadium to iron ratio of at least 0.5 which is directly useful as a refining agent for producing ferro-vanadium alloys, the improvement residing in simultaneously introducing a highly oxidizing gas and a protective fluid below the upper surface of a bath of the molten pig iron maintained at a temperature in the range of 2600 to 2900°F. to oxidize vanadium preferentially, as compared to iron, and thereby produce a vanadium-containing slag in which the ratio of vanadium to iron is increased.

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