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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1698

Title: Techno economic evaluation of iron ore pellet manufacturing processes in india and justification for new units in odisha
Authors: Naik, H K
Pradhan, I C
Keywords: limonite
goethite
siderite
SiO2
Issue Date: May-2012
Publisher: MINETECH’12
Citation: MINETECH’12 –Workshop on Exploration, Exploitation, Equipment, Safety and Environment-4-5 May, 2012, Bhubhaneswar
Abstract: hydroxides like goethite and limonite. Small amounts are found as the carbonates in siderite, as sulphides in pyrites and as silicates in chamosite and greenalite. Broadly iron ores may be grouped as: direct shipping ore generally better than 60 per cent iron (Fe), which is mined and used in blast furnaces requiring only simple preparation and beneficiable ore which contain as little as 25 percent Fe and can be upgraded to around 60 percent Fe by magnetic or heavy media separation. Lump ores are naturally mined ores that are crushed and screened to a certain grain size before their use. However, as a result of preparation and enrichment processes in the iron ore mines to increase the Fe content, very fine-grained ores increasingly accumulate which have to undergo agglomeration. This is done by means of sintering and pelletizing. The physical and metallurgical characteristics of the ores are as important as chemical properties. The steel industry requires iron ore which is high i...
Description: Copyright belongs to proceeding publisher
URI: http://hdl.handle.net/2080/1698
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