In the extraction of copper from its sulphide ore

In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with.

Given below are the steps for the extraction of copper from its Sulphide ore: a Concentration of the ore : Removal of unwanted metals and gangue to purify the ore is done by Froth floatation method as it is a sulphide ore. Reduction of copper I oxide with copper I sulphide:. Menu Categories. Explain the steps for the extraction of copper from its sulphide ore. Write the balanced equations involved in the process.

In the extraction of copper from its sulphide ore

The method used to extract copper from its ores depends on the nature of the ore. Chalcopyrite also known as copper pyrites and similar sulfide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated before refining e. The concentrated ore is heated strongly with silicon dioxide silica and air or oxygen in a furnace or series of furnaces. The copper I sulfide produced is converted to copper with a final blast of air. The end product of this is called blister copper - a porous brittle form of copper, about 98 - It is worthwhile spending some time sorting out what the reducing agent is in these reactions, because at first sight there does not appear to be one! Or, if you look superficially, it seems as if it might be oxygen! But that's silly! We'll start by looking at the second reaction because it is much easier to see what is happening. That means that both the copper and the oxygen have been reduced decrease in oxidation state. The sulfur has been oxidized increase in oxidation state. The reducing agent is therefore the sulfide ion in the copper I sulfide.

Which of the following pairs of metals is purified by Van Arkel method Which ore of the following is a mineral of iron? It does not react with water, and is easily bent into shape.

Sulphur dioxide S O 2. Iron sulphide FeS. Carbon monoxide CO. Copper I sulphide C u 2 S. In the extraction of copper from its sulphide ore, the metal is finally obtained by tbe reduction of cuprous oxide with :. In the exteraction of copper from its sulphide ore, the metal is fanally obtained by the reduction of caprous oxide with.

Jump to navigation. The most common types of ore, copper oxide and copper sulfide , undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different chemistries of the ore. Copper oxides are more abundant near the surface, but are considered low-grade ore, with a lower concentration of copper. Although this requires more ore to be extracted and processed, this process is less expensive, so oxides can still be mined at a profit. On the other hand, while copper sulfide ores are less abundant, they contain higher amounts of copper. Although the processing costs are higher, ultimately more copper can be extracted. Since each mine site is unique in its mineral composition, concentration, and quantities, the most economical and profitable processing of ore must be determined by the mine planners. When it is economically feasible, a mine may extract both types of copper minerals; when it is not possible, mines will only process either the copper oxides or the copper sulfides. The first steps of copper processing are the same for both ores: mining and transporting.

In the extraction of copper from its sulphide ore

The method used to extract copper from its ores depends on the nature of the ore. Chalcopyrite also known as copper pyrites and similar sulfide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated before refining e. The concentrated ore is heated strongly with silicon dioxide silica and air or oxygen in a furnace or series of furnaces. The copper I sulfide produced is converted to copper with a final blast of air. The end product of this is called blister copper - a porous brittle form of copper, about 98 - It is worthwhile spending some time sorting out what the reducing agent is in these reactions, because at first sight there does not appear to be one! Or, if you look superficially, it seems as if it might be oxygen! But that's silly! We'll start by looking at the second reaction because it is much easier to see what is happening.

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Give the reaction involved during the extraction of zinc from its ore by a roasting of zinc ore b calcination of zinc ore Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores. However, they won't get discharged at the cathode provided their concentration does not get too high. Electrolytic Refining The purification uses an electrolyte of copper II sulfate solution, impure copper anodes, and strips of high purity copper for the cathodes. Also show the ions present in them. Text Solution. Write the balanced equations involved in the process. Identify the alloy containing a non metal as a constituent in it Extraction of metal from the ore cassiterite involves The solvent must not mix with the water. Draw a labelled diagram of the electrolytic cell used for the refining of copper.

Unreactive close unreactive A substance is unreactive or inert if it does not easily take part in chemical reactions. However, most metals are found combined with other elements to form compounds close compound A substance formed by the chemical union of two or more elements. Most metals are extracted from ore close ore A rock containing enough quantities of a mineral for extraction to be possible.

In many countries, as well as the more obvious copper-colored coins, "silver" coins are also copper alloys - this time with nickel; these are known as cupronickel alloys. Draw labelled diagram for the electrolytic refining of copper. Write down the names of compounds represented by the following formulae. Extracting copper from its ores The method used to extract copper from its ores depends on the nature of the ore. In this process Cu2S behaves as reducing agent. Identify the alloy containing a non metal as a constituent in it Copper II ions are deposited as copper on the cathode for the electrode equation, see under the purification of copper below. So use that information to work out what has been oxidized and what reduced in this case! Write the balanced equations involved in the process. This is used to make sulfuric acid via the Contact Process. In the extraction of copper from its Sulphide Ore when ore is subjected to roasting some of it is oxidised to Cu2O which reacts with the remaining Cu2S to give copper metal.