Process for melting scrap iron, sponge iron and/or solid pig...

Details Process for melting scrap iron, sponge iron and/or solid pig... Process for melting scrap iron, sponge iron and/or solid pig...

C - Chemistry, Metallurgy

21

C

53/74, 53/81

C21C 5/56 (2006.01) C21B 13/00 (2006.01)

Patent

CA 1311618

A b s t r a c t Process for melting scrap iron, sponge iron and/or solid pig iron or the like. For the purpose of melting scrap iron, pelletized sponge iron in reduced condition, solid pig iron or the like, it is proposed to introduced the melting heat from below by means of burners and to adjust a corresponding carbon content within the molten bath by a sub-stoichiometric combustion of hydro- carbon and thereby to renounce any addition of coal to the charged material. By reducing the oxygen flow, in particular by performing the combustion with approximately 0.9-times of the stoichiometric amount of oxygen, and by optionally adding slag formers, the aggressivity of the slag is simultaneously reduced.

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