Question

calcination is not applicable to the ore of?​

Answer 1

Calcination:-

• Calcination is the process of turning ore into an oxide by heating it to a high temperature. In the absence of air or with a limited supply of air, the ore is heated below its melting point.
• Carbonates and hydroxides are often converted to their oxides using this approach. Moisture and volatile contaminants are also eliminated during calcination.

Roasting:-

• When we talk about roasting, we're talking about a metallurgical process in which ore is heated beyond its melting point in the presence of extra air and then transformed into its oxide.

• Roasting is a process for transforming sulphide ores, while calcination is primarily employed for the oxidation of carbonates. Moisture and non-metallic contaminants are emitted as volatile gases during roasting.

In the case of ZnS, the roasting method is used rather than calcination.