Process Technology: An Introduction by de Haan André B

Author:de Haan, André B. [Haan, André B.]
Language: eng
Format: epub
Publisher: De Gruyter
Published: 2015-04-13T04:00:00+00:00

(13.6)

where c is the solute concentration, cm is the solute concentration at which spontaneous nucleation occurs, and c* is the solute concentration at saturation. The metastable limit must be determined through experimentation. Fortunately cm is very close to c* for many inorganic systems, and satisfactory correlation can be obtained from

(13.7)

where the parameters kn and n must be evaluated from experimental data. The order for heterogeneous nucleation can range from 2 to 9. For secondary nucleation the order is significantly lower and in the range of 0-3. Many commercial crystallizers operate in the secondary nucleation range.

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