Extraction of Fe Flashcards
1
Q
concentration method (Fe)
A
gravity seperation
2
Q
oxidation (Fe)
A
both calcination and roasting
3
Q
reduction (Fe)
A
pyromettalurgy
4
Q
700K (blast furnace - Fe)
A
zone of reduction
5
Q
charge (blast furnace - Fe)
A
ore + coke + limestone (flux)
6
Q
1100K (blast furnace - Fe)
A
zone of slag formation
7
Q
slag =
A
flux + gangue
8
Q
flux (blast furnace - Fe)
A
CaO
9
Q
1500K (blast furnace - Fe)
A
zone of combustion
10
Q
1800K (blast furnace - Fe)
A
zone of fusion
11
Q
molten iron (blast furnace - Fe)
A
pig iron (4% carbon)
12
Q
cast iron (Fe)
A
3% carbon
13
Q
wrought iron (Fe)
A
0.2% carbon
14
Q
purest form of iron (Fe)
A
wrought iron
15
Q
slag (blast furnace Fe)
A
CaSiO3
Ca3(PO4)2 [ thomas slag ]
used as fertilizers
