SFE technology is booming highly home and abroad these years. It is widely used in foodstuffs, spicery, herbal medicine, biology, lipid and petrol-chemistry etc. For extraction.

The process of SFE is to extract from a certain material under the supercritical circumstances, then to separate the extracts by altering the pressure and temperature.

Commonly, Supercritical fluid extraction device adopts CO2 as the extracting media. The advantages as follows:

1) Convenient in operation. Can be used widely.

2) With an excellent optional function. Extracts can be gained optionally by controlling the pressure and temperature.

3) Low operation temperature. Can be extracted near to the room temperature, especially fit for the extracting of thermo-sensitive elements. The possibility of oxidation when contact with oxygen and reaction when meet rays are eliminated. The natural flavor of the extracts can be kept.

4) Extracting media and extracts can be separated easily. No leftover of CO2 on the extracts after extracting operation.

5) CO2 is a nontoxic, flavorless, noncombustible and cheap compound and can be recycle used.

6) With high extracting effect.