##### Optimal Recovery of Iron Values from a Low Grade Iron Ore using

Mar 26, 2014 A low grade iron ore containing 51.6% Fe, 17.6% SiO2, 4.3% Al2O3, and 3.8% the low grade ores, fines, and slimes stock piled in the mines site for years. The upgrading of iron ores by gravity separation techniques has been The diagram shows different contour lines for grade such as 60%, 62%,