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The
raw material (Iron Silicate) is generated by quenching of the Copper Slag in water in a specially designed granulator at copper smelter. This
slag is stored in our factory as discrete piles to effect primary solar drying.
This slag is analyzed periodically for its chemical composition and is reported
in the test certificate provided by us. |
|
CONSTITUENT |
% WEIGHT |
PROPERTY |
TYPICAL VALUES |
|---|
|
Silica SiO2
(Combined as Silicate)
|
25-35% |
Color |
Black, glassy |
|---|
|
Free Silica
|
<0.5% |
Grain Shape |
Angular, Multifaceted |
|---|
|
Alumina, Al2O3
|
2-9% |
Hardness |
7 Moh’s |
|---|
|
Iron Oxide as
Fe0
|
45-55% |
Specific Gravity at 25°c |
3.5 |
|---|
|
Calcium Oxide
CaO
|
2-9% |
Bulk Density at 25°c |
1.75 ton/m3 |
|---|
|
Magnesium Oxide
MgO
|
1-5% |
PH |
7.0 |
|---|
|
Copper Oxide, CuO |
0.7% max |
Conductivity at 25°c |
4 ms/ m |
|
Sulphates |
0.02% |
Weight raise on Ignition |
4% |
|
Chlorides |
0.003% |
Moisture Content |
<0.1% |
|