Flashcards
Blast Furnace
Cards in this deck (9)
- 1The Blast FurnaceHaemotite- Iron (III) Oxide- Fe(2)O(3)
Coke-Carbon-C
Sand- Silicon Dioxide- SiO(2)
Slag-Calcium Silicate- CaSiO(3)
Limestone- Calcium Carbonate- CaCO(3) - 2Step 1: Reducing Agent*Coke burns at 1500-2000c
*Carbon + Oxygen -> Carbon Dioxide
C + O(2) -> CO(2)
* Carbon Dioxide + Carbon ->
Carbon Monoxide
CO(2) +C ->2CO - 3Step 1: Cont.Overall: Carbon + Oxygen ->
Carbon Monoxide
2C + O(2) -> 2CO - 4Step 2 : Reduction of Iron OxideIron(III) Oxide + Carbon Monoxide -> Iron + Carbon Dioxide
Fe(2)O(3)[s] + 3CO[g]-> 2Fe[l] + 3CO(2)[g]
@2000c, Iron is molten, sinks to the bottom, and is tapped off. - 5Stage 3: Removal of ImpurityMain impurity- Sand
Calcium Carbonate + Carbon Dioxide -> Calcium Oxide
CaCO(3)[s] + CO(2)[g] -> CaO[s] - 6SlagCalcium Oxide +Silicon Dioxide -> Calcium Silicate
CaO[s] + SiO(2)[s] -> CaSiO(3) [l] - 7Slag UsesFloats on top of Iron. Is ran off using a different tap.
Uses
Roads
Landfills
Foundations for Buildings - 8Hot Waste GasesNitrogen, Carbon Monoxide & Dioxide
Used to heat air into the bottom of the furnace.
This reduces energy costs - 9Crude IronMain Impurity- Carbon
Turned into steel by lowering Carbon content ( too brittle)
Adding other metals (Alloy Formation)
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- GCSE Chemistry Flashcards on Blast Furnace, created by Adventurer 12_07 on 19/04/2018.
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- Adventurer 12_07
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