blast furnace Flashcards
1
Q
iron ore
A
hematite
2
Q
to remove oxygen from iron oxide we use -
A
carbon as carbon is higher in the reactivity series than iron
3
Q
what are the raw materials that go into the blast furnace?
A
iron oxide
coke (contains carbon)
limestone (calcium carbonate)
4
Q
what is limestone used for
A
it removes acidic impurities
5
Q
carbon and oxygen react to form
A
carbon dioxide
6
Q
carbon dioxide reacts with more carbon to form
A
carbon monoxide
7
Q
carbon monoxide is our____ agent
A
reducing agent
it causes the iron to lose its oxygen
8
Q
iron oxide reacts with carbon monoxide to form
A
iron and carbon monoxide
9
Q
at the bottom of the blast furnace, iron reacts with carbon to form
A
iron and carbon monoxide
10
Q
calcium oxide reacts with silicon dioxide to form
A
calcium silicate
slag
casiothree
