Question

In Bessemer converter, $C{u}_{2}S$ is converted to blister copper by:

• A. self reduction
• B. reduction with coke
• C. reduction with coal gas
• D. reduction with $H_2$ gas

Answer 1

The correct option is A self reduction

In Bessemer converter, the oxygen is not supplied in excess to the molten $C{u}_{2}S$.

The oxygen supply is done in such a way that $2/3$ of the $C{u}_{2}S$ is converted in $C{u}_{2}O$.

So, in the absence of oxygen (limited supply), remaining $C{u}_{2}S$ also reacts with $C{u}_{2}O$, to get reduced to copper.

The reaction is: $C{u}_{2}S$ + $2C{u}_{2}O$ $\to$ $6Cu$ +$S{O}_2$.

This type of reduction is known as self-reduction.

Option A is correct.