short note on roasting and calcination?
Answers
Answered by
32
Hey dear here is your answer,
Roasting is the process in which the ore is heated below its melting point in
presence of air to oxidise the impurities. eg: carbon, sulphur etc removed as
their gaseous oxides.
Calcination is the process of heating the ore below its melting point an
absence of air to remove volatile impurities like arsenic.
Hope it was helpful
Roasting is the process in which the ore is heated below its melting point in
presence of air to oxidise the impurities. eg: carbon, sulphur etc removed as
their gaseous oxides.
Calcination is the process of heating the ore below its melting point an
absence of air to remove volatile impurities like arsenic.
Hope it was helpful
lpapyadav:
thanks dear
roasting in presence of oxygen and calcination in presence of co2
okk
wlc
no it occurs fully in the absence of air
Answered by
20
Metals in the middle of the activity series are found in there sulphides or carbonates in nature and it is much more easier to abstain metals from their oxides as compared to their sulphides or carbonates. Therefore we use the processes of RAOSTING and CALCINATION to reduce these sulphides and carbonates into the metal oxides.
ROASTING:- The sulphide ores are converted into their oxides by heating strongly in the presence of excess air
CALCINATION:- The process used to change the metal carbonates into their oxide form by heating strongly in limited air.
HOPE IT HELPS PLEASE MARK AS THE BRAINLIEST ;-)
ROASTING:- The sulphide ores are converted into their oxides by heating strongly in the presence of excess air
CALCINATION:- The process used to change the metal carbonates into their oxide form by heating strongly in limited air.
HOPE IT HELPS PLEASE MARK AS THE BRAINLIEST ;-)
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