Laboratory research on simultaneous dephosphorization and desulfurization of medium-phosphorus hot metal
In view of medium-phosphorus hot metal with the phosphorus content between 0.33 ％ and 0.44 ％,a optimization test on simultaneous dephosphorization and desulfurization slag system was carried out by injection treatment at 1 350 ℃.The results showed that CaO excess coefficient,oxidizer excess coefficient,and ω(CaF2)/ω(CaO) ratio had little effect on dephosphorization,but influenced desulphurization quite appreciably.With the combined consideration to dephosphorization rate,desulphurization rate,and slag quantity,the optimum agent composition was CaO excess coefficient of 45 ％,oxidizer excess coefficient of 15 ％,and ω (CaF2)/ω (CaO) of 0.5.To substitute B2O3 for CaF2,the ω(B2O3)/ω(CaO) ratio should be maintained above 0.20.
medium-phosphorus hot metaldephosphorizationdesulfurization
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万方数据
维普
