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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 itself is usually found in the form of magnetite (Fe , Ores containing very high quantities of hematite or magnetite (greater than.
18 Oct 2016 , High-grade hematite deposits are naturally enriched iron deposits found within , 58 and 64 percent iron, which can be used directly in blast furnac , Although costly and complex, upgrading magnetite ore to magnetite.
Hematite has traditionally formed the bulk of global iron ore production, and , oxides (hematite, magnetite, martite), abundant quartz, very rarely mica and other , of Direct Reduction (DR) grade concentrate grading 68% Fe and Blast Furnace.
Moreover, early charcoal iron furnaces proliferated in other Appalachian , furnace, and waterpower for running a bellows; which blows a strong blast of air through the furnace , The two best grades of iron ores are hematite and magnetite
The optimum firing temperature of pellets within the induration furnace decides the , The influence of green pellet carbon content on hematite, magnetite, , plays a significant role in the performance of Corex and Blast furnace process
11 Oct 2011 , The pellets containing magnetite are exposed to microwave energy in a heat treatment furnace under oxidizing conditions to convert magnetite to hematite , namely “BF Pellets” which are suitable for blast furnace feed and.
By comparison, iron fines must be sintered before charging to the furnace , hematite ores contain up to 69% iron and can be directly fed into blast furnaces in the , unlike lower grade magnetite, and is therefore mined as Direct Shipping ore