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Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite, hematite, goethite, limonite or siderite.For the direct industrial use of high-grade iron ores or for upgrading low-grade ores, a detailed characterization of the ore is essential so as to ascertain the mineralogical, chemical, and elemental composition, since the ore composition differs with the source of origin [ 4 ].Iron Ore Characterization Techniques in Mineral ProcessingCharacterization of iron ore by visible and infrared reflectance and Raman spectroscopies - ScienceDirect Iron Ore (Second Edition) Mineralogy, Processing and Environmental Sustainability Woodhead Publishing Series in Metals and Surface Engineering 2022, Pages 209-246Characterization of iron ore by visible and infrared reflectance and ...احصل على السعر
The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite ( Fe 3O 4, 72.4% Fe), hematite ( Fe 2O 3, 69.9% Fe), goethite ( FeO (OH), 62.9% Fe), limonite ( FeO (OH)·n (H2O), 55% Fe) or siderite ( FeCO3, 48.2% Fe).According to optical microscopy data, in agglomerates with basicity from 1.2 to 3.0, the macrostructure is characterized by round, less often oblong pores up to 2 mm, on occasion, there are pores...Iron Ore Characterization Techniques in Mineral Processing2.1. Introduction Iron is estimated to make up 32.07% of the Earth's mass and its elemental abundance varies between about 5% of the Earth's crust and as much as 80% of the planet's core ( Morgan and Anders, 1980 ).Mineralogical, chemical, and physical characteristics of iron oreاحصل على السعر
The most commonly found iron ore minerals are: magnetite (Fe 3 O 4 ), hematite (Fe 2 O 3 ), ilmenite (FeTiO 3 ), goethite [FeO (OH)], limonite [FeO (OH)· n (H 2 O)] and siderite (FeCO 3) [ 3 ]. The viable ore deposits not only have high amount of iron but also low amount of gangue materials [ 4 ].احصل على السعر