Abstract
AbstractIn an eco‐friendly technology, MgSO4·7H2O is produced as a by‐product in the magnesium‐based wet flue gas desulfurization (FGD) process. Equilibrium data for the quaternary system of MgSO4‐MgCl2‐CaSO4‐CaCl2‐H2O at 308.15 K, 338.15 K, and 368.15 K were investigated using the method of isothermal solution saturation. The dry‐salt phase diagram of the system mainly includes the three‐salt co‐saturated point, solubility isotherm curves, and crystallization regions. The results could provide assistance for producing MgSO4 as a by‐product with evaporation crystallization in the magnesium‐based wet FGD process.
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