© Oxford University Press 2011 IC Extracting titanium and aluminium Extracting titanium and aluminium
© Oxford University Press 2011 IC Extracting titanium and aluminium Aluminium and titanium exist in the earth as minerals
© Oxford University Press 2011 IC Extracting titanium and aluminium Aluminium usually comes from aluminium oxide in the bauxite ore
© Oxford University Press 2011 IC Extracting titanium and aluminium Most titanium exists normally as titanium oxide
© Oxford University Press 2011 IC Extracting titanium and aluminium There are limited amounts of the ores of both metals. This means they are expensive £ £ £ £ £ £
© Oxford University Press 2011 IC Extracting titanium and aluminium They are not easy to extract because …
© Oxford University Press 2011 IC Extracting titanium and aluminium … you can’t heat them with carbon because …
© Oxford University Press 2011 IC Extracting titanium and aluminium aluminium is above carbon in the reactivity series.
© Oxford University Press 2011 IC Extracting titanium and aluminium Its atoms are joined very strongly to oxygen atoms
© Oxford University Press 2011 IC Extracting titanium and aluminium If you heat titanium oxide with carbon you make titanium carbide but…
© Oxford University Press 2011 IC Extracting titanium and aluminium this makes the metal brittle
© Oxford University Press 2011 IC Extracting titanium and aluminium Aluminium is extracted by electrolysis – this is expensive
© Oxford University Press 2011 IC Extracting titanium and aluminium Aluminium production
© Oxford University Press 2011 IC Extracting titanium and aluminium Titanium is extracted by a multi- step process – this is expensive
© Oxford University Press 2011 IC Extracting titanium and aluminium Recycling aluminium uses only 10% of the energy needed to make cans from bauxite