Smelting process for recovering metals from fine-grained non-ferrous metal sulfide ores or concentrates
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United States of America Patent
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Apr 26, 1988
Grant Date -
N/A
app pub date -
Aug 2, 1985
filing date -
Aug 16, 1984
priority date (Note) -
Expired
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Abstract
In the smelting process of recovering metal from non-ferrous metal oxide ores or concentrates and/or from fine-grained non-ferrous metal sulfide ores or concentrates, particularly from non-ferrous heavy metal sulfide ores or concentrates, any sulfide ores are initially oxidized. The ores or concentrates are then supplied to a fluidized bed of coal in a melting gasifier (1). A certain particle size is maintained. Sulfide ores are supplied to a melting burner (2), which directs a flame jet into the fluidized bed of coal (FIG. 1).
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