| 摘要 |
A load containing iron-rich residues, particularly at least one steel slag, is smelted and the molten load is subjected to a reduction step of at least one part of the oxides that it contains to form a raw metal. Smelting and reduction may be carried out in a single step. The load may additionally contain a corrective substance, containing at least one oxidised compound chosen according to the use planned for the mineral phase resulting from the reduction operation. The raw metal is subjected to a conditioning step including a dephosphorisation operation, preferably by means of a dephosphorisation slag including iron oxides Fe203, a mixture of oxides CaO and SiO2 and a fluxing agent, particularly potassium carbonate K2CO3. |
