FIELD: metallurgy.
SUBSTANCE: invention relates to ferrous metallurgy and can be used in smelting low-phosphorus manganese slag to produce commercial low-phosphorus carbonic ferromanganese. Method involves melting manganese concentrate in electric furnace and subsequent dephosphorization of manganese oxide melt by blowing melt with gaseous carbon monoxide, wherein after reduction of phosphorus content in melt to 0.01–0.02 %, coke is charged into bath in amount of reduction of iron and part of manganese from oxide melt to produce said manganese-containing products.
EFFECT: invention enables to obtain low-phosphorus phosphorus manganese slag used in production of pig silicomanganese and manganese metal without loss of manganese with an associated dump metal.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MELTING MIDDLE-CARBON FERROMANGANESE | 2018 |
|
RU2710706C1 |
| METHOD OF DEPHOSPHORISATION OF MANGANESE ORES AND CONCENTRATES | 2015 |
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| METHOD OF PROCESSING MANGANIFEROUS RAW MATERIAL | 2018 |
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| METHOD OF COMBINED PROCESSING OF OXIDED AND CARBONATE FERROMANGANESE ORES | 2008 |
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| METHOD OF PREPARING FERROMANGANESE | 1999 |
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| CHARGE FOR MELTING CONVERSION MANGANESE SLAG | 2002 |
|
RU2225456C2 |
| METHOD OF PROCESSING FERROMANGANESIAN RAW MATERIALS | 2001 |
|
RU2191831C1 |
| METHOD OF PROCESSING RAW MATERIALS CONTAINING MANGANESE WITH RECOVERY OF METALS | 1999 |
|
RU2153023C1 |
