Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1991-06-27
1994-06-21
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75 1043, 75622, C01G 3300
Patent
active
053225481
ABSTRACT:
Ferroniobium, ferrotantalum and ferrovanadium alloys are hydrogenated to facilitate crushing then nitrided, and then acid-leached to produce a soluble iron nitride leachate and a niobium, tantalum or vanadium nitride residue which residue can be denitrided to yield the metal which can be recovered by melting.
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Fenwick Lloyd J.
Kieffer Bernard F.
McQueary Timothy R.
Peterson John R.
Rossback Matthew A.
Rosenberg Peter D.
Teledyne Industries Inc.
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