FIELD: metallurgy.
SUBSTANCE: invention relates to the ferrous metallurgy field, particularly to reprocessing of waste slags from manufacturing of manganese and siliceous ferroalloys for extraction from it of manganese and siliceous ferroalloys of high grade by content of phosphorus. In method there are mixed manganous waste slags and slag from manufacturing of ferrosilicon and is implemented reduction of oxides of manganese and silicon carbide, presenting in slag from manufacturing of ferrosilicon, herewith amount of silicon carbide in mixture of slags for 10-50% more than it is required by stoichiometry for total reduction of manganous oxide.
EFFECT: invention provides achievement of total extraction of manganese into desired product, usage in the capacity of reducer of silicon carbide, contained in waste slag of ferrosilicon and also receiving of specified compound with low content of carbon and phosphorus.
2 ex, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO MELT LOW-CARBON MANGANIFEROUS ALLOYS | 2010 |
|
RU2455379C1 |
| METHOD OF PRODUCING METAL MANGANESE | 2002 |
|
RU2233347C2 |
| CHARGE FOR MELTING CONVERSION MANGANESE SLAG | 2002 |
|
RU2225456C2 |
| METHOD OF COMBINED PROCESSING OF OXIDED AND CARBONATE FERROMANGANESE ORES | 2008 |
|
RU2374350C1 |
| METHOD OF PROCESSING FERROMANGANESIAN RAW MATERIALS | 2001 |
|
RU2191831C1 |
| REPROCESSING METHOD OF FERRIMANGANESE BASES AND CONCENTRATES WITH RECEIVING OF ALLOY WITH CARBON-REDUCTION PROCESS | 2008 |
|
RU2382089C1 |
| METHOD OF PREPARING FERROMANGANESE | 1999 |
|
RU2148102C1 |
| METHOD OF SMELTING LOW-PHOSPHORUS MANGANESE SLAG TO OBTAIN COMMERCIAL LOW-PHOSPHORUS CARBONIC FERROMANGANESE | 2018 |
|
RU2711994C1 |
| CHARGE FOR PRODUCING MANGANESE FERROALLOYS | 2022 |
|
RU2788459C1 |
| METHOD OF MAKING CARBON FERROMANGANESE | 0 |
|
SU834148A1 |
