Chemie Ingenieur Technik, Vol.87, No.7, 881-902, 2015
Product Design Through Mechanical Agglomeration of Powders
Fine powders produce dust, have low bulk densities and can be only handled poorly. Therefore, pressure agglomeration and build-up agglomeration for transferring dry powders into manageable agglomerates are wide-spread industrial methods. An agglomerate consists of many particles, interconnected by short material bridges. In case of press agglomeration, the highly viscous, plastic phases form the kit between the particles. However, the material bridges in the wet granulation arise from drying of the dissolved binder. The selection of suitable binders and the execution of scale-up relevant pilot tests as well as the industrial design of pressure agglomeration and granulation installations are discussed.
Keywords:Build-up agglomeration;Glass transition temperature;Material bridges;Pressure agglomeration;Wet granulation