Spray-drying is the transformation of a pumpable feed from a fluid state into a dried particulate form by spraying the feed into a hot drying medium (Anandharamakrishnan and Ishwarya 2015). The history and market for this technology will be reviewed, as will the process details. Applications will also be discussed in this month’s Processing column.
History and Market
Spray-drying was invented by Samuel Percy in 1872. World War II resulted in widespread implementation of spray-drying. The d…