Consider the pyrometallurgical extraction of Iron in a Blast Furnace. Which of the following chemica — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

The zone of reduction is the upper portion of the blast furnace. Here, Carbon Monoxide ($CO$) rising from below reduces iron oxides step-wise: $Fe_2O_3 \rightarrow Fe_3O_4 \rightarrow FeO \rightarrow Fe$. The combustion of Carbon (A) happens at the bottom ($~2000 K$). The decomposition of Limestone (D) happens in the heat absorption zone ($~1000 K$).