I have one type of sample which contains many metals such as Mn,Cu,Co,Ni along with Fe. I had done the leaching of the given ore with sulfuric acid and the leach liquor contained all the metals cited above. Then I tried to separate Fe only from the solution as precipitate without affecting other metals, but I was not able to find out the way to separate it out from the solution. Please someone help me to solve the problem. I would be thankful to the person.
This is tough, which depends on the concentrations of different metals in the solution.
You can oxidize Fe(II) to Fe(III) and Mn(III) to Mn(VII) in acidic medium (pH
Iron is a ubiquitous element in the universe. Ferrous iron (Fe(II)) was abundant in the primordial ocean until the oxygenation of the Earth's atmosphere led to its widespread oxidation and precipitation. This change of iron bioavailability likely put selective pressure on the evolution of life. This element is essential to most extant life forms and is an important cofactor in many redox-active proteins involved in a number of vital pathways. In addition, iron plays a central role in many environments as an energy source for some microorganisms. This review is focused on Fe(II) oxidation.
http://www.sciencedirect.com/science/article/pii/S0005272812010407
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