ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Effect of Firing Condition and Ingredients on the Swelling Behaviour of Iron Ore Pellets
T. SharmaR. C. GuptaB. Prakash
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1993 Volume 33 Issue 4 Pages 446-453

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Abstract

In the present investigation an attempt has been made to determine the effect of firing temperture, firing time and ingredients/additives (CaO, MgO, SiO2, Al2O3) on the swelling behaviour of iron ore pellets. For this purpose two Indian iron ore fines from Bailadila and Noamundi deposits and chemically pure iron oxide were used.
From the results obtained, it is observed that the swelling of iron ore pellet is controlled by the firing temperature, firing time and additives/ingredients present in the pellet. The growth of iron whisker is controlled by these ingredients. The presence of free lime promotes the swelling index of the pellet.

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© The Iron and Steel Institute of Japan
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