Iron Pellets

Iron Pellets

Basetrade Global sources and supplies high-quality, DRI-grade iron pellets which have a minimum Fe content of 65 per cent and above.

Iron ore is upgraded to high iron content through a beneficiation process to obtain powder like iron concentrate. The concentrate is then palletised into iron pellets in order to feed a blast furnace or the shaft furnace of a direct reduced iron (DRI) plant. Basetrade is primarily focused on the higher grade iron pellets used as feedstock in shaft furnace of DRI plants.
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Quantity in Percentage (Typical Values)

Chemical Analysis Parameters Quantity
Fe (total) (%) Min 65.0- 67.5
FeO (%) Max 0.40 – 0.30
SiO2 (%) Max 2.00 – 1.40
Al2O3 (%) Max 0.50 – 0.40
CaO(%) Min 1.00
MgO(%) Min 0.40
P (%) Max 0.03
S (%) Max 0.006 – 0.003
TiO2 (%) Max 0.20 – 0.10
Cu (%) Max 0.003
Moisture(%) Max 1.30
Basicity (CaO + MgO / Al2O3 + SiO2) (%) Min 0.3
Physical Properties Cold Compression Strength 300 ± 20kg/pellet – 350 ± 20kg/pellet
C.C.S (<100 kg/pellet) Max 0%
C.C.S (<150 kg/pellet) Max 3%
 – Max 2%
Porosity (%) Min 20 – 22
Tumble index Min 95% above 6.3mm – Min 97% above 6.3mm
Abrasion index Max 3.5% below 0.5mm – 2.5% below 0.5mm
Size Distribution < 5 mm (%) Max 1.0 – 0.5
9-16 mm (%) Min 90 – 96
Static Bed Reduction Test (815oC) Metallization (%) Min 93 – 95
Compression strength 85kg/DRI – 90kg/DRI
Linder Test (760oC) Metallization (%) Min 92 – 94
+ 6.3 mm (%) Min 93 – 98
– 0.5 mm (%) Max 1.5 – 0.5

Pelletisation-Process

During the process of pelletising iron concentrate, the soft raw material is rolled into balls on large constantly revolving wheels. The are fired in a rotary kiln, which sinters the particles into small, hard spheres that are typically 8mm to 18mm in size and contain 64% Fe and above. The remainder of a typical iron pellet is compose of refining materials such as limestone, dolostone and olivine, and bentonite which is used as a binding agent.


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