ABSTRACT
The heading “granulation” in this section is used as a main title to describe all forms of granules, small compacts, and small grains or prills. The granulation techniques in a variety of industrial fi elds are adopted to gain the advantages of solids handling, as listed in Table 8.1. There are two principal modes of granulation: granule growth modes and machine-made product modes. In the former, granulation is normally achieved by tumbling, agitating, or fl uidizing raw materials in the presence of liquid binders, and the fi nal products (i.e., agglomerates) have a wide distribution in granule sizes. The latter includes granulation processes in which materials are forced to fl ow in a plastic or sticky condition through dies or screens or in molds or other devices. Forming droplets from a fused material or suspension such as spray prilling or drying also belongs in the machine-made product mode.
