Modelling of precipitation in a continuous fluidized bed reactor with mechanical stirring

Modelling of precipitation reactions requires the knowledge of flow pattern inside the reactor, the thermodynamic properties as well as the kinetic laws of the different mechanisms (nucleation, crystal growth, agglomeration). Thanks to this information, population balance can be solved in support of design and operating of industrial process.Precipitations performed in fluidized bed reactor are commonly used, as fluidized bed leads to solid particles of excellent properties, in terms of morphology, granulometry or density. In this study we propose a new simple model to describe precipitations carried out in continuous fluidized bed reactor equipped with a mechanical stirring the Mixed Suspension Separated Product Removal (MSSPR). Inspired by the classical Mixed Suspension Mixed Product Removal (MSMPR), this model was applied to the precipitation of uranium peroxide. This latter is involved in the processing of uranium ores to recover uranium from purified leach solution as yellow cake