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Grade: 12
        (i) How is leaching carried out in case of law grade Cu Ore ? (ii) How is cast iron different from pig iron ?
one year ago

Answers : (1)

Adarsh
763 Points
							
(1)  in case of low grade copper ore, leaching is done by using bacteria or acid in the presence of air, in this process copper get converted into Cu2+ ion.
Cu + 2H+ + ½ O2 => Cu2+ + H2O
Then resulting solution is treated with scrap iron or H2 to get metallic copper .
 Cu2+ + H2 => Cu + 2H+
(2) Pig iron has many inpurities and has 4% carbon while cast iron has 3% carbon and it is more hard and brittle as pig iron ..
 
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Thanks and Regards 
Adarsh
one year ago
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