Techniques For Suspensions Preparation
Dispersion Process
Controlled Crystallization
Dispersion Process - pulverization of solid is best achieved by:
Micronization
Spray-drying
Feed funnel
Compressed Feed Air or Gas
Compressed Grind Air or Gas
Micronized product outlet
Vortex Finder
Grinding chamber
Grind Air or Gas manifold
Drying Gas
Liquid feed
Atomizer
Drying chamber
Exhaust gas
Cyclone
Dry particles collector
a supersaturated solution should be formed
Controlled Crystallization
a supersaturated solution should be formed then quickly cooled with
rapid stirring
a supersaturated solution should be formed then quickly cooled with rapid stirring →
formation of many nuclei
a supersaturated solution should be formed then quickly cooled with rapid stirring → formation of many nuclei →
many crystals