Distribution Behavior of Phosphorus during Smelting Reduction of Steel Slag in Iron Bath
The industrial dephosphorization slags normally contain a large amount of iron oxide and P resources.Therefore,it is a potential renewable resource in case of inadequate iron ore supply.To recovery the valuable elements from dephosphorization slag,the novel approach was proposed using smelting reduction in iron bath to concentrate phosphorus from slag phase to iron bath.The experimental factors such as reduction time,temperature and slag composition were investigated in detail.The results showed that,the capacity of phosphate in slag became very lower by adding SiO2 to the original slag,and the melting point of slag also decreased.When the slag-metal ratio was 1: 2,almost of iron oxide was reduced and remove to the iron bath after reducing for 30min at1823K.However,the phosphorus coexist in slag,metal and gas phase,and distribution ratio of P in slag-metal-gas phase was 18.02%,68.72% and 13.26% under those conditions,respectively.
dephosphorization slag smelting reduction slag modification recovery of P
Cui Yuyuan Zhang Tongsheng Wang Deyong Jiang Maofa
Ferrous Metallurgy, School of Materials and Metallurgy, Northeastern University, Shenyang, 110819, P.R.China
国际会议
The 4th Australia-China-Japan Joint Symposium on Iron and Steelmaking(第四届中日澳钢铁冶金学术会议)
沈阳
英文
99-102
2012-11-03（万方平台首次上网日期，不代表论文的发表时间）