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chemistry igcse acapprinted 84 · PDF 84
145 pagesrevision 46934
printed 84 · PDF 84
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Cup and cone
arrangement
caine WY, —» Exhaust gases
(CO, CO,)
Spongy iron
formed Reduction begins
3Fe,0, + CO ~ 2Fe,O, +
Slag formed
Reduction completes
“I, FeO + CO - Fe + CO,
cme C + CO, + 2CO
) Carbon burns
y C +0, CO,
CaCO, - CaO + Co,
CaO + “SiO, > CaSiO,
(slag)
Iron melts and
dissolves C, Si
and P
FeO + C — Fe + CO
Hot air
Tuyeres sae NS blast
Slag
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