Solid-liquid extraction technology with liquid solvents
Smale Scale Extraction Plant, ATEX, for the extraction of small batches of raw material
The SPX e&e Series small scale extraction plant is designed to extract small batches of raw material using water or alcoholic solvents. The gasket material can also be adapted for other solvents (acetates, alkanes, etc.) on request. The plant is equipped with 2 percolators, each 50 litre volume. Additionally, the plant features a condensation unit consisting of a condenser and a stainless steel vacuum pump, together with a solvent balance tank and a miscella outlet.
2) Liquid gas extraction technology - Advanced, new technology from SPX:
The new process from SPX uses Dimethyl ether (DME) to extract organic material and requires the use of only moderate pressures. In comparison to supercritical CO2, DME can be operated at pressures below ten bar.
The liquid gas extraction pilot plant process
The liquid DME is pumped from a storage tank through the extractor vessel which contains the solid raw material being used for the extract. The solvent is circulated until the extraction is complete. The temperature control of the solvent is managed via heat exchangers. When the extraction step is complete, the liquid extract is then expanded to reduce pressure and the gas is flashed off. It is condensed and pumped back as a liquid for reuse / recycling.