What chemical reaction produces carbon monoxide utilized as a reducing agent in the blast furnace?

The reaction that produces carbon monoxide as a reducing agent in the blast furnace is represented by the equation where carbon combines with carbon dioxide to generate carbon monoxide. In a blast furnace, carbon monoxide plays a crucial role in reducing iron oxide (Fe₂O₃) to iron by providing the necessary electrons to facilitate the reduction process.

The reaction itself, where carbon reacts with carbon dioxide, can be understood as follows:

When carbon reacts with carbon dioxide, it bonds with the oxygen in CO₂, liberating carbon monoxide as a product. This step is vital in the metallurgical process of extracting metal ores since carbon monoxide can effectively reduce metal oxides, making it valuable in the smelting of iron.

Understanding this reaction highlights the dual role of carbon in the blast furnace: it not only serves as a fuel but also participates in important reduction reactions that lead to the production of metals.