Chemistry — Extraction of Iron (Blast Furnace)

Reduction of iron ore and slag formation.

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digraph BlastFurnace {
  rankdir=TB;
  node [shape=box, style=rounded];
  "Coke (C)" -> "CO2" [label="C + O2"];
  "CO2" -> "CO" [label="CO2 + C"];
  "CO" -> "Iron" [label="reduces Fe2O3"];
  "Limestone (CaCO3)" -> "CaO" [label="decomposition"];
  "CaO" -> "Slag" [label="CaO + SiO2"];
  "Iron" -> "Molten iron (tapped)";
  "Slag" -> "Slag (tapped)";
}