Metal Mine ›› 2008, Vol. 38 ›› Issue (08): 36-39.
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Zuo Qian,Wang Yi,Tian Fu,Yang Mohan
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Abstract: To exploit and utilize an oolite hematite ore of Ningxiang type in western Hubei, a laboratory test of magnetizing roasting-low intensity magnetic separation was carried out for the run-of-mine ore containing 43.71% Fe and 0.93% P. The test result shows that when the -2 mm run-of-mine ore is blended with coal powder in a ratio of five to one, roasted at a temperature of 750 ℃for one hour, treated by low intensity magnetic separation at coarse size to discard the tailings, finely ground to 96% -325 mesh and handled by two cleanings of low intensity magnetic separation, an iron concentrate with an average grade of 60.12% and iron recovery (to run-of-mine ore + coal powder) of 77.42% can be obtained. However, the iron concentrate contains 0.62% P, which should be reduced through further study.
Key words: Oolite hematite, Magnetizing roasting, Low intensity magnetic separation
ZUO Qian, WANG Yi, TIAN Fu, YANG Mo-Han. Experimental Study on the Beneficiation of an Oolite Iron Ore from Western Hubei by Roasting-Magnetic Separation[J]. Metal Mine, 2008, 38(08): 36-39.
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