Experimental investigation into dynamics and stability of continuous MSMPR agglomerative precipitation of CaCO₃ crystals

Experiments were carried out to study the dynamic and kinetic behaviour during the agglomerative precipitation of CaCO₃ in an MSMPR crystallizer. The results demonstrate that for certain conditions steady state can be achieved earlier for such a process than for simple crystallization. Bimodality of the PSD was once more confirmed. Kinetic constants for nucleation, growth, aggregation and disruption were estimated by non-linear least squares fitted to a discretized MSMPR population balance model. Preliminary results indicate a dependence of both crystal aggregation and agglomerate disruption on crystal growth rate, but to reverse extents.