FIELD: ferrous metallurgy, in particular, process for preparing of raw material for metallurgical treatment, more particular, material used for direct manganese alloying of steel.
SUBSTANCE: method involves mixing manganese-containing material, such as carbonate manganese ore concentrate, with magnesium oxide-containing flux, such as dolomitized lime, in an amount providing ratio of (CaO+MgO)/SiO2=1.25-1.35 in thermally processed material; providing thermal processing of mixture by sintering at temperature of 1,050-1,100 C; adding aluminum-containing material containing metal aluminum in an amount of 35-45 wt% and alumina in an amount of 15-25%.
EFFECT: intensified removal of sulfur from steel and high degree of manganese reduction.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| BRIQUETTE FOR MANGANESE ALLOYING OF STEEL | 2005 |
|
RU2305140C1 |
| PELLETS PRODUCING METHOD FOR DIRECT ALLOYING OF STEEL WITH MANGANESE | 2005 |
|
RU2307177C1 |
| CHARGE FOR PRODUCTION OF MANGANESE-CONTAINING MATERIAL FOR DIRECT ALLOYING OF STEEL | 2005 |
|
RU2312155C2 |
| METHOD FOR PRODUCING OF PARTLY METALLIZED AGGLOMERATE FOR ALLOYING OF STEEL WITH MANGANESE | 2005 |
|
RU2305138C1 |
| PRODUCTION METHOD OF MANGANOUS STEEL | 2007 |
|
RU2355776C2 |
| METHOD OF MAKING LOW-CARBON CONSTRUCTIONAL STEEL | 2002 |
|
RU2212453C1 |
| METHOD OF PRODUCTION OF THE MANGANESE ALLOYED STEEL | 2005 |
|
RU2304623C1 |
| METHOD FOR PRODUCTION OF CHROMIUM-MANGANESE STAINLESS STEEL | 2004 |
|
RU2278169C2 |
| METHOD OF ALLOYING STEEL BY MANGANESE | 1995 |
|
RU2104311C1 |
| METHOD OF MELTING STEEL IN CONVERTER | 2002 |
|
RU2228366C1 |
