Question

Bessemerization is used in the extraction of:
(A) Iron
(B) Copper
(C) Aluminium
(D) Zinc

Answer 1

Bessemerization is a process for the recovery of metal from the molten matte. The process of extraction takes place in the Bessemer converter, thus it is named as the Bessemerization. The process involves the removal of trace ferrous sulphide in the form of slag $\text{ (FeSi}{{\text{O}}_{\text{3}}}\text{) }$. The impurities are treated with the silica $\text{ Si}{{\text{O}}_{\text{2}}}\text{ }$ to form a convert the impurities into the slag. We obtain the pure and blisters metal

Complete step by step answer:
Copper is mainly extracted from the copper pyrites$\text{C}{{\text{u}}_{\text{2}}}\text{S}$. The sulphide ore is roasted and the copper pyrite is converted into the cuprous oxide and ferrous oxide.
The Bessemerization process is used to recover the copper from the copper matte.
The process in which the air is blown through the molten matte with the silica is called Bessemerization. The process takes place in the Bessemer converter.it is a pear-shaped furnace made of steel and is lined inside with the lime or magnesium oxide.
Bessemerization is a very special recovery method. It applies to copper.
During the process:
-The traces of the ferrous sulphide present in copper matte is oxidised to the$\text{ FeO }$. It combines with the silica $\text{ Si}{{\text{O}}_{\text{2}}}\text{ }$ to form a slag. The reaction of formation of slag is as shown below:
$\text{FeO + Si}{{\text{O}}_{\text{2}}}\xrightarrow{{}}\text{ FeSi}{{\text{O}}_{\text{3}}}$ (Slag)

- Copper sulphide is partially oxidised to cuprous oxide which further reacts with the remaining sulphide to form copper and sulphur dioxide.
$\begin{aligned} & \text{ 2C}{{\text{u}}_{\text{2}}}\text{S + 3O2 }\to \text{ 2FeO + 2S}{{\text{O}}_{\text{2}}}\text{ } \\\ & \text{ C}{{\text{u}}_{\text{2}}}\text{S + 2C}{{\text{u}}_{\text{2}}}\text{O }\to \text{ 6Cu + S}{{\text{O}}_{\text{2}}} \\\ \end{aligned}$

After this reaction, the converter is tilted as the molten copper is poured on sand moulds. On cooling, the sulphur dioxide, nitrogen, and oxygen escape from the metal. The obtained copper is $\text{ 99}{\scriptstyle{}^{0}/{}_{0}}$ pure and known as the blister copper.
Bessemerization is applicable to obtain pure copper. Therefore, Bessemerization opts for the extraction of copper.
So, the correct answer is “Option B”.

Note: The smelting process results in the formation of a layer that consists of cuprous sulphide and some traces of ferrous sulphide. It is called copper matte. The Bessemer converter may be similar to the blast furnace but the key difference is Bessemer oxidized the impurities in the supply of oxygen, however, in the blast furnace the reducing agent's carbon and carbon monoxide reduces the impurities and metal of interest.