Tsuge and Matsuo studied the precipitation of Mg(OH) 2 by reacting aqueous solutions of MgCl 2? and
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Tsuge and Matsuo studied the precipitation of Mg(OH)2 by reacting aqueous solutions of MgCl2?and Ca(OH)2 in a 1-liter MSMPR crystallizer operating at 450 rpm and 25?C. Crystal sizes were measured by a scanning electron microscope (SEM) and analyzed by a digitizer. Crystal size was taken to be the maximum length. A typical plot of the crystal-size distribution is given in Figure for an assumed residence time of 5 min. Assuming that the number of crystals is proportional to exp (-L/G?), as in (17-38), determine:
(a) Growth rate
(b) Nucleation rate
(c) Predominant crystal size
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