Process for recovering metal values from alloy scraps

Details Process for recovering metal values from alloy scraps Process for recovering metal values from alloy scraps

1983-01-27

1984-08-21

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 82, 420580, C22B 2306

Patent

active

044668260

ABSTRACT:
A process for recovering metal values from Ni and Co based superalloy scraps containing Cr, W, and Mo is disclosed. The process is a multistep pyrometallurgical oxidation process wherein the metal is successively oxidized by oxygen, Fe.sub.2 O.sub.3 or both in a tiltable electric arc furnace with slag withdrawal after each oxidation step in order to obtain a substantially pure Ni/Co alloy melt.

REFERENCES:
patent: 4251266 (1981-02-01), Larsson et al.

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