Modelling of a continuous fluidized-bed crystallizer effects of mixing and segregation on crystal size distribution during the crystallization of tetrahydrate sodium perborate

✍ Scribed by C. Frances; B. Biscans; C. Laguerie

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 702 KB
• Volume: 49
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(94)00135-9

✦ Synopsis

A modelling of a continuous fluidized-bed crystallizer is developed. The model is based on the description of the fltidized bed as a multistage crystallizer, in order to take into account the segregation and particles mixing within the bed. This model is compared to experimental data obtained during the laboratory-scale crystallization of tetrahydrate sodium perborate. It gives a better prediction of the mean size of the product than a usual model of suspended bed based on the assumption of perfect size classification. It can also predict the size distribution of the crystals along the column.