Raw Material Division, PPI
ORES
Iron Ore
Manganese Ore Chrome Ore
Other Ores

MINERALS
Alumina
Gypsum

METALS
Steel Billets
Pig Iron
Sponge Iron

COAL
Steam Coal
Coking Coal

Alumina
Specification of Calcined Alumina – Metallurgical Grade:

Formula : Al2O3


Chemical Analysis % W/W
LOI (Loss on ignition) 1.2 max
SiO2 0.035 max
Fe2O3 0.050 max
TiO2 0.030 max
P2O5 0.003 max
V2O5 0.010 max
Na2O 0.50 max
Al2O3 Min. 98.5% on dry basis
Physical Properties
Bulk Density (Kg / m3) 1030 Typical
Alpha Alumina 31 Typical (35 max)
Size Distribution
+150 5 Typical
-150 + 200 13 Typical
-200 + 325 37 Typical
-325 45 Typical
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