Question

difference between calcination and rosting​

Answer 1

Answer:

Roasting involves heating of ore lower than its melting point in the presence of air or oxygen. Calcination involves thermal decomposition of carbonate ores. Roasting is carried out mostly for sulfide minerals. During calcination, moisture is driven out from an ore.

Explanation:

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Answer 2

Answer:

Here is ur ans

Explanation:

Calcination Roasting

1. Calcination is a process in which ore is heated in the absence of air or air might be supplied in limited quantity. Calcination is a process in which ore is heated in the absence of air or air might be supplied in limited quantity

1. Roasting involves heating of ore lower than its melting point in the presence of air or oxygen.

2. Calcination involves thermal decomposition of carbonate ores.

2. Roasting is carried out mostly for sulfide minerals.

3. During calcination, moisture is driven out from an ore.

3.Roasting does not involve dehydrating an ore.

5.Carbon dioxide is given out during calcination

5.Carbon dioxide is given out during calcination 5.During roasting large amount of toxic, metallic and acidic compounds are released.

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