For centuries, humans have been extracting metals from molten ores. Today, the basic technique remains the same, but how does extraction work?
- Metals can be extracted from rocks if they are heated with charcoal.
- A redox reaction is a process that involves reduction and oxidation.
- Reduction is the removal of oxygen, and this requires a form of carbon and a heat source.
- Iron is extracted within a blast furnace, in which highly exothermic reactions take place.