Spray drying process with spinning atomizer

摘要

A process for obtaining a substantially dry particulate solid in the form of particles with a narrow particle size distribution which comprises atomising a feedstock comprising a solution or dispersion of the solid in a liquid medium into droplets with a narrow size distribution and a volume median diameter from 100 to 250 micrometers in a spray dryer whereby the droplets are converted into the dry particulate solid within the spray dryer.