Process for dephosphorizing molten pig iron

Details Process for dephosphorizing molten pig iron Process for dephosphorizing molten pig iron

C - Chemistry, Metallurgy

21

C

53/104, 53/83

C21C 1/02 (2006.01)

Patent

CA 1075012

ABSTRACT OF THE DISCLOSURE A process for dephosphorizing molten pig iron by adding (a) line C???? slag and/or iron oxide (b) iron oxide and/or oxidizing gas, and if necessary (c) fluor???? and/or soda ash to the molten pig iron stored in a treating vessel in order to adjust the amount of CaO to correspond to at least 0.3 times the sum of the amounts of SiO and P2O5 and to adjust the amount of T.Fe to 15 to 50% in the slag com- position after trestment, thereby obtaining a hig dephos- phorisation.

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