Fluid bed spray granulation produces dense particles by layering solids from a suspension, solution or melt onto nuclei created as a spray-dried by-product of the atomized spray liquid or abrasion from larger particles or on starter nuclei inserted as a defined quantity. For this processing option the liquid only serves as a vehicle for the solid particles contained in the spray liquid.
       This process would be rather lengthy in a batch type fluid bed, unless process ramps are introduced:
       •  Produce spray-dried powders by spraying the liquid at a high temperature
       •  Agglomerate the powders by means of the agglomeration technique
       •  Layer the majority of the liquid on the such produced nuclei
       With this processing technique the usual finished particle size can range from 0.2 – 5.0 mm.
 
       Typical product features
      • Dust free
      • High spherocity
      • Free flowing
      • Easily dispersible
      • Good solubility
      • High density
      • Low hydroscopicity
      • Smoot surface
      • Low abrasion
      • Narrow particle size distribution
 
 
       Equipment Model: PGL-B SPRAYING DRYER GRANULATOR