The batch granulation process in a fluidised bed

Abstract Batch or semibatch processes of granulation in a fluidised bed are discussed. It is demonstrated that such processes can be used to determine kinetic data of granule growth. It has been shown that, during the granulation process, the number of particles varies. This effect has been taken into account in a simplified treatment of the experimental data leading to estimation of the linear growth rates of the granules. If the mass increase of the particles plays a dominant role, the mass-averaged size of the product particles should be used as a representative granule size.