The phosphorus-concentrating phase in the converter slags was designed and simulated by synthetic converter slag.The distribution of phosphorus in factory converter slags was also analyzed by scanning electron microsc...The phosphorus-concentrating phase in the converter slags was designed and simulated by synthetic converter slag.The distribution of phosphorus in factory converter slags was also analyzed by scanning electron microscope(SEM) and X-ray diffraction(XRD).Then factory converter slags were modified by addition of SiO_2 and heated to 1540℃and then cooled to room temperature.The results showed that the phosphorus in the factory converter slags was mostly distributed in two phases:dicalcium silicate (C_2S) and tricalcium silicate(C_3S) by formation of solid solution,and with a little in matrix.Whereas,in the synthetic slags with the basicity close to 3,phosphorus was almost concentrated in phase of C_2S(Pconcentrating phase) in which the contents of P_2O_5 reach to 7.74%.This lays a good foundation for grinding and separation of P- concentrating phase.展开更多
文摘The phosphorus-concentrating phase in the converter slags was designed and simulated by synthetic converter slag.The distribution of phosphorus in factory converter slags was also analyzed by scanning electron microscope(SEM) and X-ray diffraction(XRD).Then factory converter slags were modified by addition of SiO_2 and heated to 1540℃and then cooled to room temperature.The results showed that the phosphorus in the factory converter slags was mostly distributed in two phases:dicalcium silicate (C_2S) and tricalcium silicate(C_3S) by formation of solid solution,and with a little in matrix.Whereas,in the synthetic slags with the basicity close to 3,phosphorus was almost concentrated in phase of C_2S(Pconcentrating phase) in which the contents of P_2O_5 reach to 7.74%.This lays a good foundation for grinding and separation of P- concentrating phase.
