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 colour from dark grey, bright yellow, or deep purple to rusty red. The iron itself is usually found in the form of magnetite (Fe 3O 4, 72.4% Fe) . The thermodynamic barriers to separating pure iron from these minerals are.
Apr 20, 2017 . 234, Separation Test on Jackson Hill Ore, Arnold, N. Y. . In the West, capitalists have expended many millions of dollars developing the low grade porphyry ores of copper. . The concentration of low grade magnetic iron ores, separating the .. 3) has a section, of fixed magnets inside of a revolving drum.
Maximizing the recovery of fine iron ore using magnetic separation
The beneficiation of fine iron ore will increase in importance in the future . of an iron ore by product opportunity from an iron oxide copper gold (IOCG) deposit. . time must be less than the residence time in the wet drum magnetic separator3. .. of the three sub fractions was measured using a magnetic susceptibility meter.