Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1984-10-25
1986-12-16
Doll, John
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75 05A, 75 05AA, 75 05BA, 75 2, 75115, 75101R, 75105, 423 25, 423 27, 423 29, 423 30, 423 31, 423 41, 423 45, 423 47, C01G 700, C22B 1104
Patent
active
046295020
ABSTRACT:
Metal is removed from particlized metal bearing refractory ores in an efficient manner utilizing pressure metallurgy with heat recovery. The particlized ore is mixed with a heated liquid, and preferably a flocculant and fibers, to form a slurry. The ore in the slurry is oxidized at superatmospheric pressure, and elevated temperatures (e.g. around 300.degree. F.). The oxidized ore is washed to remove acids, and like products of oxidation, and the washed ore is subsequently subjected to conventional leaching processes to effect an actual metal recovery. Heat recovery is practiced by utilizing spent wash water as part of the slurrying liquid, and using two or more liquid-interconnected vessels in effecting the oxidization.
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Brison Robert J.
Elmore Carl L.
Sherman Michael I.
Doll John
Kamyr Inc.
Stoll Robert L.
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