Q. 294.3( 3 Votes )
Wrought iron is the purest form of iron. Write a reaction used for the preparation of wrought iron from cast iron. How can the impurities of sulphur, silicon and phosphorus be removed from cast iron?
Wrought iron is the purest form of commercial iron and is obtained from cast iron by oxidising the impuritiesina reverberatory furnace lined with haematite.
Fe2O3 + 3 C → 2 Fe + 3CO
Limestone is added as flux to remove the impurities of sulphur, silicon and phosphorous. They form a slag which can be easily removed. The metal is removed from the slag by passing through rollers.
Rate this question :
Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.Chemistry - Exemplar
Match the items of Column I with items of Column II and assign the correct code :
Chemistry - Exemplar
Write down the reactions taking place in Blast furnace related to the metallurgy of iron in the temperature range 500-800 K.Chemistry - Exemplar
Why aresulphide ores converted to oxide before reduction?Chemistry - Exemplar
The purest form of iron is prepared by oxidising impurities from cast iron in a reverberatory furnace. Which iron ore is used to line the furnace? Explain by giving reaction.Chemistry - Exemplar
At temperatures above 1073K coke can be used to reduce FeO to Fe. How can you justify this reduction with Ellingham diagram?Chemistry - Exemplar
For the metallurgical process of which of the ores calcined ore can be reduced by carbon?Chemistry - Exemplar