FIELD: metallurgy. SUBSTANCE: proposed method includes procedures of partial preliminary reduction of metal oxides to degree of preliminary reduction, at least 60% at one or more stages of preliminary reduction; at least one stage of preliminary reduction is performed by means of one or more following elements: natural gas, natural gas subjected to reforming and natural gas subjected to partial reforming used as reductant. After preliminary reduction, complete reduction of metal oxides and melting of metal at reduction stage are performed. EFFECT: increased productivity; enhanced economical efficiency. 8 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DIRECT MELTING FOR OBTAINING METALS FROM THEIR OXIDES | 1998 |
|
RU2199591C2 |
| DIRECT MELTING METHOD | 2000 |
|
RU2260059C2 |
| METHOD OF DIRECT MELTING | 1999 |
|
RU2221052C2 |
| METHOD OF DIRECT MELTING AND MELTING UNIT FOR REALIZATION OF THIS METHOD | 1999 |
|
RU2221053C2 |
| METHOD OF PRODUCTION OF METALS AND METAL ALLOYS | 1999 |
|
RU2261922C2 |
| METHOD AND REACTOR FOR REDUCING METAL OXIDES | 1991 |
|
RU2094471C1 |
| METHOD OF PRODUCING IRON FROM IRON-CONTAINING MATERIALS IN CONVERTER | 1994 |
|
RU2090622C1 |
| METHOD AND DEVICE FOR CONDUCTING DIRECT MELTING | 2001 |
|
RU2265062C2 |
| METHOD OF PARTIAL REDUCTION OF IRON OXIDES AND METHOD OF PRODUCING METALLIC IRON | 1996 |
|
RU2167943C2 |
| METHOD AND DEVICE FOR DIRECT MELTING | 2001 |
|
RU2276691C2 |
