Core &
Ext. Metals: Extraction
Slide 21 of 45
Exercise
1: The Blast Furnace
1. A mixture of _________, _____ and _________ is added at the top of the blast furnace.
2. Hot
air is
‘blasted’ into the blast furnace.
3. The carbon reacts with the
hot
air to form ______ _______.
5. The carbon monoxide _______ the iron ore to form iron and carbon dioxide.
7. Impurities collect at the bottom in a layer, ‘_____’, and can be tapped off.
6. The iron, pig
iron, collects at the bottom of the blast furnace to be tapped off.
8. _____
_____ are removed from the blast furnace.
4. The coke reacts with the carbon dioxide to form _______ _________.
limestone
carbon dioxide
carbon monoxide
reduces
slag
Waste gases
Coke Hematite
1900°C
Firebrick lining