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Recovery of Calcium Carbonate and Calcium Sulfate from Waste Gypsum

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Figure

Fig. 2. XRD diagram of the WDG with particle size.
Fig. 4. Process chart of the experimental procedure.
Fig. 5. Recovery of calcium sulfate by sulfidation of WDG.
Fig. 11. XRD diagram of CaCOTheta3 prepared by using the WDG according to reaction temperature
+2

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