Mini Spray Dryer

Instrument details:
Type: Mini Spray Dryer
Make: Buchi
Model No: B-290
Essential specification:
Measurement range: Possible particle diameter range-1–25 µm
Temperature ranges: 70-200 ⁰C
Airflow: Max. of 35 m3/h
Spray Gas: Gas used is Zero Air ( However we may use moisture free compressed air or nitrogen as well)/200–800 l/h, 5–8 bar
Heating liquid: Water or a thermal oil (polyethylene glycol PEG 400 with low viscosity)
Nozzle tip diameter: 0.7 mm standard, other sizes 1.4 and 2.0 mm available
Software: Not Applicable
Sample Type: Liquid
Minimum sample volume: 200 mL to 1L
Accuracy: Not mentioned in manual
Precision / Repeatability: Not mentioned in manual
Result Type : Powder form
Working principle:
A spray dryer takes a liquid stream and separates the solute or suspension as a solid and the solvent into a vapor. The solid is usually collected in a drum or cyclone. The liquid input stream is sprayed through a nozzle into a hot vapor stream and vaporized. Solids form as moisture quickly leaves the droplets.