MetallurgyHardBloom L3
Question
Which of the following is true for calcination of a metal ore?
Options
A.It makes the ore more porous
B.The ore is heated to a temperature when fusion just begins
C.Hydrated salts lose their water of crystallization
D.Impurities of S, As and Sb are removed in the form of their volatile oxides.
Solution
Sol. During calcinations: -
(A) Make the ore more porous.
(B) Organic impurity is removed.
(C) ore converted into oxide reduction become easier.
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