Spray agglomeration converts dusty, lumpy powders into free flowing, easily dosable particles. To do so, the precursor is fed into the plant and fluidised and sprayed with a binding agent. This so-called adhesive may be an aqueous solution – even of the same precursor – or a component of the final formulation.
The adhesive dries or solidifies on the surface of the powder particles and glues them together at specific points – the result is a snowflake structure of the agglomerate. Although these usually have a lower fracture strength than the original powder particles, they feature much better wettability and redispersibility in water. Therefore, agglomerates are ideal for the manufacture of instant products or for compressing into tablets.
- Improved wetting and redispersibility
- Improved solubility in water
- Easier to dose and process
- Identical stoichiometry of all components in each individual particle
- Particles suitable for tablet pressing (direct compression)
- Suitable for the manufacture of instant products