GYPSUM TO GYPSUM FROM PRODUCTION TO
2016 6 21 O in gypsum converts to hemihydrate according to the equation CaSO 4.2H 2 O energy → CaSO 4. 1/2H 2 O 3/2H 2 O This partly dehydrated form of gypsum is the intermediate product stucco . The stucco production step may involve a series of equipment units i.e. crushers dryers mills heated mills calcination
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