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What is the significance of the decarburization reaction to the steelmaking process?

What is the significance of the decarburization reaction to the steelmaking process?

Keywords: steelmaking decarburization

(1) The carbon in the molten iron is oxidized by the decarburization reaction to be close to or equal to the specification range of the carbon in the molten steel during tapping.

(2) A large number of CO bubbles generated during the decarburization reaction play a cyclical stirring effect on the metal molten pool. Thus, the composition and temperature of the molten steel are evened and the kinetic conditions of various chemical reactions are improved, which is conducive to the progress of various chemical reactions in steelmaking.

(3) The decarburization reaction is beneficial to the removal of gas and non-metallic inclusions in steel.

(4) The chemical reaction between [C] and O2 is a strong exothermic reaction, so the carbon-oxygen reaction provides a large amount of heat source for converter steelmaking.

(5) In the oxygen top-blown converter, the CO bubbles generated by the decarburization reaction can make the slag form foamed slag, which is beneficial to the chemical reaction with the metal droplets.

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