Kinetic Characteristics of Amino Acid Salt Crystallization in Methanol-Water System

Nucleation and growth mechanisms and kinetics of crystals of an amino acid salt were investigated in a methanol‐water system by measuring and evaluating the induction time as a function of the supersaturation ratio and temperature in batch salting out crystallization experiments. Discrimination between the possible crystallization mechanisms, and estimation of the kinetic parameters were carried out using nonlinear parameter identification. The results concerning the growth mechanism obtained were checked additionally by measuring the induction time as a function of number density of seed crystals. Nucleation and growth mechanisms and kinetics of crystals of an amino‐acid salt were investigated in a methanol‐water system by measuring and evaluating the induction time as a function of the supersaturation ratio and temperature in batch salting out crystallization ex‐periments. The results concerning the growth mechanism obtained were checked additionally by measuring the induction time as a function of number density of seed crystals.