Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1985-09-03
1990-03-06
Stoll, Robert L.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75114, 75117, 75118R, 75119, 75120, 75121, 423 27, 423 38, 423 49, 423109, 423150, 423DIG4, C22B 300
Patent
active
049062930
ABSTRACT:
An improved hydrometallurgical process for extracting metals from ocean-mined ferromanganese nodules. The process includes the steps of contacting the ferromanganese nodules in an extraction zone with an aqueous solution containing effective amounts of chloride ions and nitrate ions necessary to displace metal values in the ore at an elevated temperature and continuing the contact to form an extraction mixture slurry including a liquid component comprising an aqueous solution containing extracted metal values from the ferromanganese nodules dissolved therein and a solid tailing component; and, separating the liquid and solid components of the extraction mixture slurry.
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patent: 2762703 (1956-09-01), Mancke
patent: 3097064 (1963-07-01), Caldwell
patent: 3854930 (1974-12-01), Kentro
patent: 3923615 (1975-12-01), Kane et al.
patent: 3986866 (1976-10-01), Coffer
patent: 3988418 (1976-10-01), Kerfoot et al.
patent: 4026773 (1977-05-01), Van Peteghem
patent: 4150091 (1979-04-01), Peterson
Nissle Tod R.
Stoll Robert L.
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