Spray granulation: gentle drying, layer by layer.
In the spray granulation process a granulation seed is enveloped in several layers. The layers come about through the drying of fine particles dissolved in a liquid sprayed into the fluidized bed. The result is a granulate with very little dust and the further benefits of a compact and firm structure.
Spray granulation for additional value
Gentle drying of heat-sensitive raw materials
In contrast to the spray drying process, the retention time of the product in the fluid bed can be selected freely; this permits spray granulation of heat-sensitive products at very low temperatures. Residual moisture and particle size can be adjusted individually.
Enhanced product attributes
Spray granulation results in granulates with a round, compact structure. They have the advantage of excellent flow properties, a high bulk density and a narrower range of particle sizes. Their adjustable attributes make them easier to process further.
Spray granulation with fluid bed technology gives you freedom of choice: residual moisture, particle size and the solids content can be adjusted precisely.
In the case of irritant substances such as enzymes, the dust-free granulates make an important contribution to occupational health and safety during subsequent processing.
How spray granulation enhances your products
- High level of final activity through minimal heat damage
- Excellent dispersibility in liquids
- Very good flow properties and accurate dosing
- Better tabletting
- No separation of the individual components
- No dust or abrasion
- Narrow range of particle sizes
- High bulk density
Examples of products
- Natural and synthetic colourants
- Plant extracts
- Protein hydrolysates
- Fermentation products