Recovery of vanadium from pig iron

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

1976-05-13

1978-01-31

Satterfield, Walter R.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 59, 75 60, 75129, 75135, C21B 304

Patent

active

040713555

ABSTRACT:
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 ferrovanadium 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.degree. to 2900.degree. 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.

REFERENCES:
patent: 3420659 (1969-01-01), Rathmann et al.
patent: 3579328 (1971-05-01), Aas et al.
patent: 3852062 (1974-12-01), Knuppel et al.
patent: 3904399 (1975-09-01), Murton

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