Question

For the metallurgical process, which combination of ores are calcined and can further be reduced by carbon?

Answer 1

Explanation:

Calcination is the process of heating a substance in a limited supply of air or oxygen. We subject the ore to thermal energy (heat) so we can change their chemical state and turn them into oxides. Although we must ensure that we keep the temperatures below the melting point of the metal. Hydroxides and carbonates are usually converted to oxides via this process. Here is how an iron ore is converted to iron oxide, to then later enable reduction.

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