Process for the production of vanadium-containing steel alloys

Details Process for the production of vanadium-containing steel alloys Process for the production of vanadium-containing steel alloys

1992-08-05

1993-09-07

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75314, 75622, C22B 3422, C22C 3308

Patent

active

052424839

ABSTRACT:
A process for production of vanadium-containing agglomerate, includes the steps of providing a spent, vanadium-containing, iron based hydroconversion catalyst; incinerating the spent catalyst in the presence of an oxidizer until a sulfur content of the spent catalyst is reduced to 2% or less by weight; grinding the spent catalyst to a particle size suitable for a desired use; and mixing the spent catalyst with an iron mineral and a binder to form a vanadium-containing agglomerate; and pyroconsolidating the vanadium-containing agglomerate. Agglomerates so obtained exhibit a solid solution structure of ferric oxide and vanadium pentoxide. A process for production of vanadium-containing steel alloys from such agglomerates includes the steps of: reducing the vanadium-containing agglomerate; mixing the reduced vanadium-containing agglomerate with a standard reduced iron agglomerate to obtain a mixed reduced agglomerate; and melting the mixed reduced agglomerate under reducing conditions to obtain a vanadium-containing steel alloy.

REFERENCES:
patent: 3334992 (1967-08-01), Downing
patent: 4167409 (1979-09-01), Downing
patent: 4396425 (1983-08-01), Faulring

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