| Carbon was expected to dissolve into slag as carbide ion(C^(2-)_2) at low oxygen partial pressure. In order to clarify these mechanisms of carbon dissolution, carbon solubility was measured both in acidic and basic slags with changing oxygen partial pressure and temperature. In basic slags, carbon solubility in MO-B₂O₃ decreased with the oxygen partial pressure and increased with basicity, which confirms the carbide ion formation mechanism. But in acidic slags, carbon solubility in MO-B₂O₃ decreased with basicity and oxygen partial pressure. In order to explain these phenomena, the probable mechanism was discussed and suggested on the basis of experimental results. The model of nitrogen dissolution into slag was compared to that of carbon dissolution and it was found that the change of the dissolution behaviors with basicity were very similar. |
|
