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| 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 |
| Appears in Collections: | Conference Papers
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| paper HKNaik final copy.pdf | | 614Kb | Adobe PDF | View/Open |
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