Download the Fluid Bed Processing Catalog
A fluidized bed occurs when a quantity of solid particles (generally contained in a holding vessel, most commonly a fluid bed processor) are placed under appropriate conditions to cause the mixture to behave as a fluid. This is typically done by forcing pressurized air, gas, or other fluids through the bed of solid particles. This causes the solid medium to acquire properties and attributes similar to those of normal fluids, resulting in what is known as fluidization.
Fluidized beds are commonly used in the pharmaceutical industry to dry, granulate, and coat any number of different active pharmaceutical ingredients (APIs), excipients, or other formulations.