How is copper extracted from ore?

Copper mining is usually performed using open-pit mining, in which a series of stepped benches are dug deeper and deeper into the earth over time. To remove the ore, boring machinery is used to drill holes into the hard rock, and explosives are inserted into the drill holes to blast and break the rock.

What is the correct order of copper extraction?

Concentration → smelting → roasting → bessimerisation.

How is the copper extracted from the ore and then purified?

Copper is purified by electrolysis. In this process copper is transferred from an impure anode to the cathode of an electrolytic cell. The insoluble impurities fall to the bottom. The copper produced by this process is 99.99% pure copper.

What are the steps in the extraction of copper?

The different steps in extraction of copper are: The ore obtained from mines are broken down into small piece by jaw crusher and then pulverized. The ore being sulphide ore is concentrated by froth floatation process. Pulverized ore is kept in water containing pine oil and the mixture is agitated by passing compressed air.

How are copper ores extracted from the ground?

Mining Methods Copper ore is extracted using two basic methods of mining – open pit or underground mining. 3. Processing of Copper Ore The first step in processing the ore removed from the mine is to break the large rocks of ore into smaller pieces. This is accomplished by a variety of subsequent processing steps.

How can copper be extracted from copper pyrite?

The principal ore of copper is copper pyrite and copper is extracted from this ore. The different steps in extraction of copper are: The ore obtained from mines are broken down into small piece by jaw crusher and then pulverized. The ore being sulphide ore is concentrated by froth floatation process.

How is copper recovered from the leaching process?

Leaching offers an alternative to copper mining. First, the ore is treated with dilute sulphuric acid. This trickles slowly down through the ore, over a period of months, dissolving copper to form a weak solution of copper sulphate. The copper is then recovered by electrolysis.