Concentration and crystallization of an inorganic solution

Comparison of a batch process and a continuous process


Evaporation section:

  • Feeding tank.
  • Dosing pump.
  • Glass Heater with SS electrical resistance.
  • Glass and SS coil condenser.
  • Graduated glass receiver.

Crystallization section:

  • Glass vessel. SS helix stirrer. Submersed SS coil for cold water circulation.
  • Cooling circuit.


  • Temperature probes Pt100Ω.
  • PVC flowmeters


Dim : 175 x 70 x 200 cm – 170 kg
SS tubular framework 40 x 40mm


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Study of the evaporation process

Mass balance on the evaporator

Thermal balance on condenser


Study of the crystallization by cooling process

Seeding of supersaturated solution

Monitoring of cooling rate by thermal balance

Mass balance on crystal production