about calcination?

Asked by  | 24th Mar, 2008, 10:26: AM

Expert Answer:

Calcination (also referred to as calcining) is a thermal treatment process applied to ores and other solid materials in order to bring about a thermal decomposition, phase transition, or removal of a volatile fraction. The calcination process normally takes place at temperatures below the melting point of the product materials. Calcination is to be distinguished from roasting, in which more complex gas-solid reactions take place between the furnace atmosphere and the solids, however calcination takes place in the absence of air.

Answered by  | 29th May, 2008, 09:45: AM

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