Modeling the Attrition Process in a 22 Liter Draft Tube Crystallizer

In Draft Tube (DT) crystallizers secondary nuclei are predominantly produced due to crystals colliding with the impeller. The formation step of these nuclei is a complex process depending on the local two-phase flow pattern in the vicinity of the impeller and on the attrition behavior of the crystalline material. In order to develop crystallizer models with a predictive value for different operational conditions or for different scales of operation a mechanistic description of the secondary nucleation rate is a prerequisite.