Experimental and theoretical study on strengthening .
Sep 20, 2012 · Metallurgy, Crushing Of Ore, Concentration Of Ore, Levigation . The extraction of a pure metal from its ore is called metallurgy. Inorderto extract the metal from ores, several physical and chemical methods are used. Iron Ore Beneficiation,Process,Gravity Concentration,Magnetic . Methods of Iron Ore Beneficiation. Washing: Sometimes washing .The concentration of each ore metal in a rock sample, usually given as weight percent. If concentrations are extremely low, as with Au, Ag, Pt and others, the concentration may be given in .