• Case Studies

Detection of secondary nucleation


In boiling crystallization secondary nucleation creates fines that induce problems in centrifuges and result in loss of capacity and production.


A Pixact Crystallization Monitoring (PCM) system is used to measure crystal size distribution and monitor the fraction of fines in the suspension. The fraction of fines is continuously reported to the DCS and actions to control the supersaturation can be taken immediately.


PCM enabled more accurate control of supersaturation than any traditional method used in the factory. As a result, secondary nucleation was eliminated improving the CV considerably.

Process parameters

Crystalline product  Food ingredient
Size distribution 20…600µm
Solids concentration  Up to 50 w-%
Temperature 20-70°C
Pressure Atm / Vacuum
Other remarks FDA compatible