Question

(5) Explain the following terms: Roasting, calcination, Refining​

Answer 1

Answer:

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Explanation:

roasting-the action of cooking something in an oven or over an open fire.

calcination-The IUPAC defines calcination as "heating to high temperatures in air or oxygen". However, calcination is also used to mean a thermal treatment process in the absence or limited supply of air or oxygen applied to ores and other solid materials to bring about a thermal decomposition.

refining-remove impurities or unwanted elements from (a substance), typically as part of an industrial process.

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Answer 2

Answer:

roasting is the process used for the reduction of sulphide ore in the presence of air

calcination is the process used for reduction of carbonate ores in the absence of air

refining is teh process of removal of metal from its ore