Spray Agglomeration: Free flowing Particles from Powders
Starting Materials Spray Agglomeration
Powders or fine granulates, the starting materials, are held under fluidization in the fluid bed unit. Liquids, aqueous solutions, hot melts, suspensions, emulsions, hot melt emulsions, hot melt suspensions are binders sprayed onto them.
Process Technology Spray Agglomeration
Dusty or sticky powders can be transformed into free-flowing, non-lumping granulates by means of Fluid-Bed Spray Agglomeration. The selected “binder”, sprayed onto the fluidized powder particles, can be an aqueous solution of the same starting material or, alternatively, that of a suitable additional component of the final formulation.
The sprayed binder dries the powder particle surface and adheres them. The resulting “snow-crystal” structure of the final particles, though more friable than the starting powder, allows a better wetting and an improved redispersion and solubility in water making them suitable for instant products or for direct compression.
Results and Benefits Spray Agglomeration
- Good wetting, non-lumping, dust-free particles
- Agglomerates with improved water solubility
- Suitability for direct compression or instant products
- Identical stoichiometry of components across all particles
- Improved dosage of agglomerates vs. powders
- Agglomeration of powders with reduced amounts of binder