Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1983-10-31
1984-06-05
Stallard, W.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 05AA, 75103, 75109, 75118R, 75119, 423 32, B22F 920
Patent
active
044526334
ABSTRACT:
In a process for producing fine size cobalt metal powder from scrap material containing brazing compositions, the silver ions are removed by cementation with iron to form an insoluble mixture which is subsequently treated with concentrated hydrochloric acid to solubilize the silver which is then precipitated as silver chloride.
REFERENCES:
patent: 4214894 (1980-07-01), Ritsko et al.
patent: 4214895 (1980-07-01), Gingerich et al.
patent: 4214896 (1980-07-01), Cheresnowsky
patent: 4218240 (1980-08-01), Gingerich et al.
patent: 4278463 (1981-07-01), Vanderpool et al.
patent: 4348224 (1982-09-01), Gingerich et al.
patent: 4381937 (1983-05-01), Gingerich et al.
Husted Eric F.
Miller Michael J.
Scheithauer Richard A.
Vanderpool Clarence D.
GTE Products Corporation
Stallard W.
Walter Robert E.
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