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Pilot units for supercritical fluid extraction of solids

Selective separation of valuable thermolabile components from solid and liquid raw materials using a supercritical gas as solvent.


  • Low-temperature separation produces natural extracts
  • Chemically inert and non-toxic solvents leave no residue in the extract
  • Solubility variation achieved by changing extraction pressure and temperature
  • High selectivity and diffusion rate


  • Closed CO2 cycle
  • Contaminant-free recirculation of supercritical solvent
  • High-performance separation step
  • Hand-operated quick-opening closures
  • Continuous process with liquid raw materials


  • Fractionated separation with fluid cyclone
  • Fractionated extraction n Modifier system
  • Multivessel design
  • Preparation for retrofit with additional extractors, separators, etc.
  • Data acquisition system
  • Process control and batch documentation with programmable logic controller (PLC)
Specifications Standard design Options
Max. operating pressure 300 bar 500, 700 bar
Max. operating temperature 80°C 120, 150, 200°C
CO2 flow capacity 18 l/h 10, 30, 50, 100 l/h
Extractor capacity 1 litre 2, 4, 6, 10, 20 litres