Question

The role of calcination in metallurgical operations is
(a) to remove moisture
(b) to decompose carbonate
(c) to drive off organic matter
(d) to achieve all the above

Answer 1

Answer:

(c) to drive off organic matter

Answer 2

(d) to achieve all the above

Explanation:

Calcination, the heating of solids to a high temperature for the purpose of removing volatile substances, oxidizing a portion of mass, or rendering them friable. Calcination, therefore, is sometimes considered a process of purification. It helps to remove moisture, decompose carbonate and drive off organic matter.

Option D is the answer.