4. Agglomerate structure and size

The properties of agglomerates (size, density, shape, etc.) govern their macroscopic behavior in fluidization. The structure of agglomerates is largely determined by the characteristics of the primary particles: size, density, shape, nature of the material, nature of the interparticle forces, etc. However, the state of knowledge is such that it remains difficult to predict the structure of agglomerates. Nevertheless, the state of our knowledge is such that it remains difficult to predict the structure of agglomerates and their macroscopic behavior from the properties of the primary particles.