● Multipurpose solid‐liquid extraction process
● Experimentation of different processes used in industries
Study of different extraction processes
In fixed bed or in suspension (infusion, percolation, decoction)
With solvent: liquid phase or steam
Extraction process
Batch or semi continuous mode
Selection of the operating temperature and pressure
Extract and solvent phases recycling by forced or gravity flow
Evaporation process
Batch or continuous mode
Selection of the operating temperature and pressure
Stripping with steam
Process Follow‐up
Mass and heat balances, process output
General specifications
• Jacketed and insulated ss tank 10 L.
• Variable speed stirrer (anchor).
• SS internal basket.
• Evaporating column, stainless steel, condenser, sight glass at condensate outlet.
• 2 glass decanter, 2 L, side overflow.
• SS insulated tank, with jacketed at the bottom, sight glass on steam feeding and injection.
• Column, in SS, packing glass Raschig rings, condenser.
• Glass fat flask, 25 L.
• SS centrifugal pump, by-pass, cartridge filter, sight hole and isolating valve.
• Steam circuit and Water circuit.
Instrumentation
• 10 temperature probes.
• 3 manometers.
• Vacuum manometer.
Option
Steam generator .
Temperature control of the extraction reactor
Evaporation reactor Vacuum circuit
This Solid-Liquid Extraction unit enables the solid-liquid extraction process to be implemented by simple contact in discontinuous mode. A certain quantity of solid matter (the load) containing the solute to be extracted is put in contact with the solvent (hot or cold).
The unit is used in a batch process for small-scale operations in particular in the laboratory and for the extraction of cheap products of vegetal origin (extraction of chlorophyll, and caffeine, etc.) using aqueous or alcoholic solvents.
