Stirred Liquid Liquid Extraction Pilot

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Product Code: APC009

Stirred Liquid Liquid Extraction Pilot Manufacturer

Stirred Liquid Liquid Extraction Pilot


This procedure consists in bringing a feed solute into contact with a more akin solvent.
The extraction column is provided with a stirrer throughout its length. The stirrer is powered by a variable speed motor. At the top of the column, an azeotropic separator provides the separation of the two phases.

Teaching objectives

  • Determination of the transfer units.
  • Height of a unit of transfer.
  • Efficiency of extraction.
  • Mass balance.
  • Calculation of the material exchange coefficient.
  • Calculation of the theoretic number of stages.
  • Concentration profile in the column.
  • Practices on a system with three partially miscible components :
  • Acetic acid – toluene – water
  • Acetic acid – isopropyl ether – water
  • Acetic acid – ethyl acetate – water

Technical specifications

  • Extraction column in borosilicate glass, H = 600 mm.
  • 1 Disk stirrer, stainless steel AISI 316 execution variable speed reducer 0-800 rpm – power 300 W.
  • 2 decanters DN 100, in borosilicate glass.
  • 4 tanks in polythene, capacity : 30 l ( 2 for feeding and 2 for the refined and extracted product ).
  • 2 gear pumps with manual control, stainless steel body AISI 316, flow range 0- 40 l/h with check valve.
  • Speed driver with display.
  • Solvent flowmeter, in stainless steel and glass, scale : 4 to 40 l/h.
  • Solution flowmeter, in stainless steel and glass, scale : 4 to 40 l/h
  • Electric cabinet, IP 55, with transformers, start/stop switch, emergency stop, security device and synoptic.
  • Technical manual


  • 1800 x 800 x 2000 mm

Essential requirements

  • Power supply : 220 V – 50 Hz
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