Particle Size Reduction and Separation

Particle size reduction is the mechanical process of breaking particles into smaller pieces via one or more size-reduction mechanisms. The mechanical process used is generally referred to as milling. 

A particle is either a discrete crystal or a grouping of crystals, generally known as an agglomerate. 

Particle separation is particle size classification according to particle size alone. 

Fluid energy milling is particle size reduction by highspeed particle-to-particle impact or attrition (also known as micronizing). 

Handbook of Pharmaceutical Manufacturing Formulations Semisolid Products 

---