ABSTRACT
Spray drying unit operations are used for the production of dried powder across a wide
range of material processing applications from food to fertilizer to pharmaceuticals (1).
This one-step, continuous process converts a bulk liquid into powder and has been shown
to be both robust and scaleable, with the appropriate hardware and process modifications.
Materials previously thought not suitable for spray drying such as proteins, have been
successfully processed with appropriate formulation and process design. In addition, the
ability to rapidly form individual particles enables a level of particle engineering well
suited to producing pharmaceutical powders, in particular for inhalation drug delivery.
