FIELD: metallurgy.
SUBSTANCE: invention relates to the area of iron-and-steel industry, to alumina industry slag treatment (red mud) in particular and may be used for ferrosilicon alloy production. The reduction melting shall be performed in an ore thermal furnace. Alumina industry slag shall be intriduced into the furnace charge in the amount of 10 to 81 mass % of the total of silicon oxides in the furnace charge, wherein the furnace charge contains quartz stone with the following component ratio, mass %: alumina industry slag 25-53, carbon reducing agent 13-24, quartz stone 26-52.
EFFECT: enhanced slag treatment and production of ferrosilicon at low energy costs.
1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REWORKING RED MUD OF ALUMINA PRODUCTION PROCESS | 2003 |
|
RU2245371C2 |
| METHOD OF PROCESSING IRON-SILICA RAW MATERIAL | 1993 |
|
RU2086659C1 |
| RED SLUDGE PYROMETALLURGICAL PROCESSING METHOD | 2011 |
|
RU2479648C1 |
| PROCESS FOR MELTING SILICOMANGANESE | 0 |
|
SU908879A1 |
| RED MUD PROCESSING METHOD | 2019 |
|
RU2734423C1 |
| METHOD OF ALUMINO-CALCAREOUS SLAGS RECEIVING | 2007 |
|
RU2356955C2 |
| METHOD OF SILICON PRODUCTION FROM ITS OXIDE | 2000 |
|
RU2165989C1 |
| CHARGE FOR SILICEOUS ALLOY COMPLEX PRODUCING | 1990 |
|
RU2068456C1 |
| METHOD FOR COMPLEX PROCESSING OF ALUMINA-CONTAINING RAW MATERIALS | 2022 |
|
RU2787546C1 |
| CHARGE FOR PRODUCTION OF FERROSILICON | 2019 |
|
RU2704872C1 |
