Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1987-01-20
1988-08-23
Stoll, Robert L.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75101R, 75115, 75118R, 75121, 423 27, 423 29, 423 30, 423 31, 423 41, 423 49, 423 52, 423DIG4, 423DIG17, C22B 1104
Patent
active
047658274
ABSTRACT:
A process for at least one of (1) recovering at least one first metal other than manganese from a first ore containing reducible manganese, and (2) recovering at least one second metal from a second ore containing the second metal and at least one metal sulfide of a metal other than the second metal and manganese; the process comprising at least one of: (A) contacting the first ore with an aqueous composition and a material containing at least one metal sulfide in the presence of a metal redox couple more positive than about +0.1 versus the standard hydrogen electrode, W. M. Latimer convention, at conditions effective to (1) chemically reduce at least a portion of the manganese, (2) oxidize at least a portion of the metal and/or the sulfide from the metal sulfide, and (3) at least partially liberate the first metal from the first ore, and recovering the first metal from the first ore; and (B) contacting the second ore with an aqueous composition and at least one reducible manganese-containing material in the presence of a metal redox couple more positive than about +0.1 versus the standard hydrogen electrode, W. M. Latimer convention, at conditions effective to (1) chemically reduce at least a portion of the manganese, (2) oxidize at least a portion of the metal and/or the sulfide from the metal sulfide, and (3) at least partially liberate the second metal from the second ore, and recovering the second metal from the second ore.
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Clough Thomas J.
Riese Arthur C.
Sibert John W.
Ensci Inc.
Stoll Robert L.
Uxa Frank J.
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