extraction of metal from sulphide ore metal take copper with reaction
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Explanation:
The ore is treated with dilute sulfuric acid. This trickles slowly through the ore dissolving copper to form copper sulfate. The copper is recovered by electrolytic refining. Advantages of this process are: See for further information on the leaching process
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Hey mate here is your answer...
Ores are the sediments and the rock that contain some concentrated metal that can profitably extracted from them.
To extract the metal of low Reactivity series we use the following method:, took example of copper sulphide(Cu2S)
Roasting : It is the process in which the sulphides ores are heated in presence of large amount of air.
Reaction : Cu2S + O2__heat__CuO +So2
Reduction : we will reduce the oxygen by using strong oxisiding agent like carbon
Reaction : CuO+ c = Cu + So2
Then to get the pure metal electrical refining take place.
In this process
Cathode = pure copper
Anode = impure copper
Electrolyte = copper sulphate
- On passing current through the electrolyte the impure copper from anode dissolves into electrolyte.
- An equivalent amount of pure Copper from the electrolyte is deposited at cathode
- The insoluble impurities settle down at bottom of anode is called anode mud.
Then we get a pure Copper.
Question : why the sulphides firstly convert into oxides.?
Ans. We convert sulphides to oxides because it is more easy to convert the ores into oxides by using chemical method.
Hope it will help you...
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