FIELD: metallurgy.
SUBSTANCE: in electric arc furnace there is melted ore-lime mixture containing manganese raw stock and lime added in charge at amount required for obtaining basicity of ore-lime melt CaO/SiO2 equal to 1.0-1.4. Further, temperature of ore-lime melt is brought to 1600-1800°C where upon melted high carbon ferro-manganese is poured into furnace at ratio of weight of manganese containing raw stock in charge and weight of high carbon ferro-manganese 0.5-1.5. Melts of ferro-manganese and ore-lime mixture are conditioned in furnace at temperature 1600-1800°C till there is obtained required contents of carbon in ferro-manganese. Successively melts are tapped simultaneously into a ladle and separately poured into moulds.
EFFECT: increased extraction of manganese into melt and reduced expenditures of energy.
6 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MELTING MIDDLE-CARBON FERROMANGANESE | 2018 |
|
RU2710706C1 |
| METHOD OF PROCESSING RAW MATERIALS CONTAINING MANGANESE WITH RECOVERY OF METALS | 1999 |
|
RU2153023C1 |
| METHOD OF DEPHOSPHORISATION OF MANGANESE ORES AND CONCENTRATES | 2015 |
|
RU2594997C1 |
| REPROCESSING METHOD OF FERRIMANGANESE BASES AND CONCENTRATES WITH RECEIVING OF ALLOY WITH CARBON-REDUCTION PROCESS | 2008 |
|
RU2382089C1 |
| METHOD OF PROCESSING MANGANIFEROUS RAW MATERIAL | 2018 |
|
RU2697681C1 |
| METHOD OF PROCESSING FERROMANGANESIAN RAW MATERIALS | 2001 |
|
RU2191831C1 |
| METHOD OF PREPARING FERROMANGANESE | 1999 |
|
RU2148102C1 |
| METHOD OF SMELTING LOW-PHOSPHORUS MANGANESE SLAG TO OBTAIN COMMERCIAL LOW-PHOSPHORUS CARBONIC FERROMANGANESE | 2018 |
|
RU2711994C1 |
| CHARGE FOR MELTING CARBON FERROMANGANESIAN | 2002 |
|
RU2212465C1 |
| MIDDLE- AND LOW-CARBON FERROMANGANESE PRODUCTION PROCESS | 2005 |
|
RU2295586C2 |
