FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, particularly to desulphurisation of molten metal. Potential difference between molten slag and molten metal is fed by means of electrodes using a DC power supply. Supplied current density is determined in accordance with the equilibrium concentration of sulphur before applying the potential difference so that the equilibrium concentration of sulphur when applying the potential difference becomes equal to or below the specified concentration of sulphur.
EFFECT: invention enables to carry out the process of desulphurisation of molten metal in a short time by increasing the desulphurisation rate without passing excess current by transferring sulphur from the molten metal to the liquid slag by an electrochemical method.
3 cl, 2 tbl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COPPER ELECTROREFINING IMPROVEMENT | 2019 |
|
RU2790423C2 |
| METHOD OF REFINING MOLTEN STEEL | 2022 |
|
RU2823106C2 |
| METHOD OF REMOVING NITROGEN FROM MOLTEN STEEL, METHOD OF SIMULTANEOUS REMOVAL OF NITROGEN AND SULFUR FROM MOLTEN STEEL, METHOD OF PRODUCING STEEL | 2022 |
|
RU2831784C2 |
| METHOD OF MAKING RAIL STEEL | 2003 |
|
RU2258083C1 |
| METHOD OF DESULFIRIZATION OF PIG IRON AND CHARGE FOR PRODUCTION OF SLAG DESULFURIZER | 1995 |
|
RU2087544C1 |
| METHOD OF MAKING STEEL IN ELECTRIC ARC FURNACE | 2003 |
|
RU2258084C1 |
| METHOD OF STEEL MAKING | 2000 |
|
RU2197537C2 |
| METAL MELT PRODUCTION APPARATUS AND METHOD (VERSIONS) | 1998 |
|
RU2205878C2 |
| CHARGE FOR STEEL MELTING | 2007 |
|
RU2343204C1 |
| BLAST-FURNACE SMELTING METHOD | 2011 |
|
RU2489491C2 |
