Minerals, Mines, Metals and Equipments: Iron ore, its ...
Mar 19, 2008· (iii) Blue Dust: Blue Dust is the name given to naturally occurring, extremely friable, high grade Haematite Iron Ore powder. D. Beneficiation of Ore: Very low grade Iron ore cannot be used in metallurgical plants and needs to be upgraded to increase the iron content and reduce the Gauge content. A process adopted to upgrade ore is called ...
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