Abstract
AbstractMetastable zone width of potash alum in aqueous solutions has been measured as function of the cooling rate in absence as well as in presence of seed crystals. From these data, the effective nucleation rate was calculated. Growth rate of potash alum crystals has been measured in a fluidized bed. Overall growth rate coefficient, kG, was then used for determination of the mass transfer coefficient, kD, and the rate constant of the intergration step kr. The dependence of kD on hydrodynamic conditions is discussed.
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