Question

Calculation and roasting

Answer 1

is it calcination....?
calcination - heating of Ore in the absence of air is called calcination.
roasting- heating of ore in presence of air is called as roasting.
hope this helped

Answer 2

Answer:

Calcination:

*Process of heating ore at high temperature in absence of air.

*Used for reducing carbonated or hydrated ores.

Roasting:

* Process of conversion of sulphide ores into oxide ores in presence of air.