Spray drying is the working horse in the world of drying. It can handle heat sensitive, non-heat sensitive and heat resistant pumpable feedstocks and turn these into a dry powder form. Many spray driers are installed in the world.
The majority of the products can be dried in one step. While being atomised into small droplets, it is exposed to hot air, evaporating at the spot. It is becoming dry at controllable temperatures.
Basically 4 phases can be distinguished