Question

➡ What is Calcination and roasting ? ​

Answer 1

Explanation:

ROASTING IS PROCESS IN WHICH ore is heated below its melting point in presence of air to oxidise the impurities.

calcinating is the process in which ore is heated below its melting point to remove volatile impurities.

Answer 2

➡️Calcination :-

• The process of heating the ore below its melting point in absence of air to remove volatile impurities like arsenic etc.

➡️Roasting :-

• The process in which the ore is heated below its melting point in presence of air to oxide the purities.