Question

Why roasting Is used for sulphide ores?

Answer 1

Roasting

1. Roasting is a metallurgical process in which ore is heated above its melting point in the presence of extra air to convert it to its oxide.
2. Roasting is the process of heating ore to a temperature below its melting point in the presence of air or oxygen.

Roasting Is used for sulphide ores

1. The process of converting ore into its oxide in the presence of extra air is known as roasting.
2. This method is mostly utilized for sulphide ores. Various contaminants and moisture are released in the form of volatile gas during the roasting process.
3. Because sulphide ores are used in this process, they are released into the environment, producing pollution.
4. Metallic and poisonous fumes, as well as some acidic chemicals, are emitted.
5. The following is the response that occurs during roasting. $2\mathrm{ZnS}\left(s\right)+3{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2\mathrm{ZnO}\left(s\right)+{\mathrm{CO}}_2\left(g\right)$
6. Zinc sulphide is transformed into zinc oxide in this process.
7. Ores are not dehydrated during the roasting process.
8. When you roast something, you get a lot of different reactions.
9. Roasting is mostly applied to sulphide ores.
10. Then the physical states of Sulphur as escaped in the form of gas