• Continuous downward extraction
• Continuous overflow extraction
• SOXHLET-Extraction

For training purpose the different methods can be compared according to energy input and achievable concentration. An experiment manual is available.

Equipment description
The heart of the unit is the 4 L extraction vessel, in which the raw material is held by a removable borosilicate glass basket. The extraction vessel is closed with a quick opening connection to enable easy replacement of the raw material.

The piping gives you the possibility to chose continuous downward extraction or continuous overflow extraction.

The loaded solvent can be treated according to the SOXHLET method, by distillation in the column beneath and condensation on top. Therefore the agents will be concentrated in the bottom of the column and the condensed and cooled solvent can re-enter the extraction vessel or can be sampled in the receiver. The distillation vessel is electrically heated. The solvent is preheated before feeding to the column.

Technical data:

• Extraction vessel DN 150, 4 Litre
  Distillation vessel 6 Litre spherical vessel, electrical heating
• Column DN 80, glass packing
• Receiver 6 Litre spherical vessel
• Condenser 0,3 m² coil heat exchanger
• Distillate cooler 0,03 m² coil heat exchanger
• Heating power 1700 W, 230V
• Pre-heater 300 W, 230 V
• Piping and Valves made from borosilicate glass or PTFE
• Stainless steel structure, Dimensions about 1000 x 600 x 3300 mm
• Instrumentation
• Control cabinet and process control system optional
• The plant is not equipped for ex-proof requirements