5th International Congress on the Science and Technology of Steelmaking 2012,
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Germany
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Recent proposal of utilisation of impurities in steel requires preservation of
phosphorus in molten steel during its refining process. To know the
phosphorus absorbing ability of deoxidation by-product slag having CaO, the
phosphorus partition has been investigated between the MnO-SiO2-FetO-CaOMgO-
P2O5 slag and molten iron in this study. The phosphate capacities (CPO4
3-)
for the present slag has been determined as a function of temperature and
optical basicity has follows;
logCPO4
3- = (11 300Λ + 54 560)/T + 18.30Λ －27.43
CaO was found useful to improve phosphate capacity of this system to some
extent.
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