Collect. Czech. Chem. Commun. 1980, 45, 1920-1927

Supersaturation of solutions in crystallisers with the well stirred suspension

Jaroslav Nývlt

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 160 00 Prague


Relations were derived comparing the steady supersaturation in the continuous MSMPR and/or bath crystallisers with the stirred suspension having the maximum supersaturation corresponding to the boundary of metastable region at the given conditions. The derived relations include only the quantities used for the system constant BN from the corresponding crystallisation experiments. By use of supersaturation in the crystalliser obtained by the described method it is possible to evaluate the kinetic constants of nucleation and growth. However, it is not possible to expect a high accuracy of the data so obtained.