The crushed bauxite enters a high-pressure "pressure cooker" filled with hot caustic soda [1, 6].
From red dirt to white powder, and from a lightning-bolt bath to a silver slab, the aluminum is now ready to be shaped into anything from a foil wrap to a jet engine. How Aluminium is made animation
A giant "vacuum" ladle siphons the liquid silver from the bottom of the pot [1]. It is whisked away to a furnace where it's purified and mixed with other metals to make it stronger [1, 6]. Finally, it is poured into molds to create massive blocks called , or rolled into thin sheets [1, 6]. The crushed bauxite enters a high-pressure "pressure cooker"
Our story begins in tropical regions, where a reddish-clay rock called is mined [1, 5]. It doesn’t look like metal at all; it’s a mix of aluminum compounds, silica, and iron rust [5, 6]. It is whisked away to a furnace where
These crystals are baked in a rotary kiln at over 1,000°C [1, 6].