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Can oxygen be removed from liquid steel?

5 years ago in Research Writing By Mehak Chaudhary

Research Paper

I’m conducting research in material science. Can oxygen be removed from steel during the melting process?

All Answers (4 Answers In All)

By Rajesh Gundlapalli Answered 5 years ago

Oxygen can be removed from the steel while in its melting phase during the steelmaking process and form deoxidised. Deoxidised steel is the steel that has some or all of the oxygen removed from the steel melt. Liquid steels contain dissolved oxygen after their conversion from molten iron, but the solubility of oxygen in steel decreases with cooling. As steel cools, excess oxygen can cause blowholes or precipitate FeO. This way, several strategies have been developed for deoxidation. https://en.wikipedia.org/wiki/Deoxidized_steel

By Dani khan Answered 5 years ago

Yes you can remove oxygen from steel during melting process. You have to add elements like manganese, silicon or aluminium because they have higher affinity for oxygen. Hence they can react with it to form non-metallic oxides thereby making it a slag.

By Carol Grace Answered 5 years ago

Hey Mehak, at the end of steel making process, you can deoxidize steel by adding either aluminium or steel. These elements react with dissolved oxygen and form oxides.

By Anubhav Kumar Answered 5 years ago

You can remove oxygen from steel by using deoxidizers like aluminum into liquid steel. Aluminum will react with the oxygen and forms aluminum oxide. Since the oxide is lighter than the steel, it gets collected on the top, which can be removed easily.