ABSTRACT
Two types of nucleation formulation are called as distribution, which identifies with the situation of liquid surrounding over a solid such as a layering and immersion, which describes liquid penetration into a powder bed. Granulation is one process of particle size enlargement, which agglomerates or compacts fine powders into larger granules to improve powder characteristics for the additional interaction between powders with capillary, viscous and chemical binding forces and promotes the agglomerate growth with the mechanical agitation or compaction. In the steady growth mode at the intermediate saturation, the average granule size linearly increases with granulation time, which creates the coarse, weak, narrowly sized distributed and easily deformable granule. The careful preparation of feed material is a prerequisite for a successful granulation in the early stage of tumbling granulation. The point of granulation in a hot fluidized bed with spray is that a liquid binder, suspension, or melt is atomized into the fluidized bed of the particles to be granulated.
