Application of Thermodynamics in the Extraction of Some Metals

In extractive metallurgy of zinc, partial fusion of $ZnO$ with coke is called sintering and reduction of the ore to the molten metal is called

The metallurgical process is used to _____ the metals.

How will you define the hydrometallurgy?

Discuss the pyrometallurgy.

Define electrometallurgy.

Write the equation for getting copper from low grade ore.

Write the process of extraction of copper from low grade ores and scraps.

Wrought iron is formed in a _____ furnace.

How is wrought iron produced.

During the extraction of haematite, limestone is added which acts as _____.(flux/slag)

In Copper extraction process, the ore is heated in a reverberatory furnace after mixing with silica. In the furnace, iron oxide ‘slags of’ as _____ silicate and copper is produced in the form of copper matte. (Give common name of the substance.)

$$\begin{gathered} 2\mathrm{FeS} + 3{\mathrm{O}}_2 \to 2\mathrm{FeO} + 2{\mathrm{SO}}_2 \\ \mathrm{FeO} + {\mathrm{SiO}}_2 \to \_\_\_\_\_ \\ 2{\mathrm{Cu}}_2\mathrm{S} + 3{\mathrm{O}}_2 \to 2{\mathrm{Cu}}_2\mathrm{O} + 2{\mathrm{SO}}_2 \\ 2{\mathrm{Cu}}_2\mathrm{O} + {\mathrm{Cu}}_2\mathrm{S} \to \_\_\_\_\_ + {\mathrm{SO}}_2 \end{gathered}$$
The above reactions convert Copper Sulphide/Oxide into blister copper. The total number of copper in the product side of the reactions are:

Iron scraps are advisable and more advantageous than zinc scraps for reducing low grade- copper ores. Zinc is _____ reactive than copper, but it is costlier. So, iron scraps are more efficient.

 A substance is formed when $0.05\%$ of carbon is added to wrought iron.

How does the copper is extracted from low grade ore?

Answer the questions: A type of iron which has $3\%$ carbon content.

Answer the question: A type of iron which has $4\%$ carbon content.

Explain the term ‘Bessemerisation’ in the extraction of copper from cuprous oxide.

Write the three forms of iron and give reason, why they are different from each other?

Osmond iron consisted of balls of wrought iron, produced by melting _____ .