Research on the Influence Factors of Dephosphorization in CaO-SiO2-FeO-P2O5Slag
YUAN Linhua
SU Chang
L Ningning
Abstract：For improving the efficiency of CaO and decreasing the basicity of converter, the effects of CaO particles, holding time and temperature on the formation of phosphor enrichment phase were investigated in this paper. The results showed that increasing the particle size of CaO properly was beneficial to the formation of 2CaO·SiO2-3CaO·P2O5 solid solution. When the granular CaO is low in slag, increasing the proportion of granular, CaO could promote the formation of 2CaO·SiO2-3CaO·P2O5 solid solution, but the 2CaO·SiO2-3CaO·P2O5 solid solution decreased when the granular CaO is high in slag. Increasing the temperature properly was beneficial to the dephosphorization reaction. Prolonging the reaction time could enlarge the size of 2CaO·SiO2-3CaO·P2O5 solid solution and improve the content of phosphorus in 2CaO·SiO2-3CaO·P2O5 solid solution.
Keywords：CaO-SiO2-FeO-P2O5 slagCaO particle sizestemperatureholding timephosphor enrichment phase
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 38-41 )