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Dephosphorization and Desulphurization Pretreatment of Liquid Iron using CaF 2 ‐free Fluxes containing BOF Slags
Author(s) -
Hur NamSuk,
Jung SungMo,
Ban BongChan
Publication year - 2004
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200405842
Subject(s) - lime , metallurgy , basic oxygen steelmaking , crucible (geodemography) , flue gas desulfurization , sulfur , liquid steel , slag (welding) , smelting , materials science , iron ore , steelmaking , phosphorus , chemistry , computational chemistry , organic chemistry
In order to examine the possibility of recycling BOF slags as dephosphorization and desulphurization fluxes, experiments were performed in a system with liquid iron and artificially prepared fluxes comprising BOF slags, lime and/or sinter ore in a Al 2 O 3 crucible at 1623 and 1673K. The phosphorus and sulphur content in liquid iron were expressed as a function of reaction time in the form of exponential decay of first order. CaF 2 ‐free fluxes comprising BOF slags, lime and/or sinter ore showed very high capacities of dephosphorization and desulphurization, which means that BOF slags could largely be recycled in the hot metal pretreatment processes.