FIELD: nonferrous metallurgy.
SUBSTANCE: claimed method comprises combining slags using extraction principle with number of extractions n approaching infinity. Depleting agent efficient in presence of reducing agent is selected from materials enriched with pyrite, pyrrotine, calcium sulfide, and calcium sulfate; metal and alloys mainly containing Si, Al, Fe, C, etc. as well as reducing and sulfidizing complexes consisting of sulfides, oxides, and reducing substances (C, Me). Carbonaceous reducers, utilized individually or in mixture, are any known carbonaceous reducers. Degree of metal Me recovery is in accordance with conventional extraction equation.
EFFECT: increased degree of recovery of nickel from slags, reduced consumption of depleting agent, reduced power consumption and loss of sulfur into gas phase.
6 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| SULFIDIZING AGENT FOR REDUCTION SULFIDIZING CHARGE FOR MELTING OXIDIZED NICKEL ORES | 2001 |
|
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| PROCESS OF REDUCTIVE-SULFIDIZING BLAST SMELTING OF OXIDIZED NICKEL ORES | 2001 |
|
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| METHOD OF INTRAFURNACE STRIPPING OF SLAGS IN VANUYKOFF'S FURNACE | 1992 |
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