Vacuum concentration equipment Supercritical extraction features:

Vacuum concentration equipment Supercritical extraction features:

Low critical temperature, suitable for extraction and purification of heat-sensitive compounds

It can provide an inert environment to avoid product oxidation and does not affect the active ingredients of the extract

The extraction speed is fast, non-toxic, non-flammable, safe to use, and does not pollute the environment

No solvent residue, no nitrate and heavy metal ions

Technical indicators of supercritical CO2 fluid extraction device

The device is mainly composed of extraction kettle, separation kettle, rectification column, CO2 high pressure pump, auxiliary pump, refrigeration system, CO2 storage tank, heat exchange system, purifier, flow meter, temperature control system, pressure control system and safety protection (electrode point control, safety valve control) system composition.

Adding a small amount of other solvents to the vacuum concentration equipment can also change its ability to dissolve solutes

In addition to pressure and temperature, the addition of small amounts of other solvents to a supercritical fluid can also change its ability to dissolve solutes. Its mechanism of action has not yet been fully elucidated. Usually the added amount is not more than 10%, and the polar solvents such as methanol and isopropanol are mostly used. Adding a small amount of polar solvent can further expand the scope of application of supercritical extraction technology to more polar compounds.

Vacuum concentration equipment Solvent strength of supercritical fluids

The solvent strength of a supercritical fluid depends on the temperature and pressure of the extraction. Using this feature, only by changing the pressure and temperature of the extractant fluid, the different components in the sample can be extracted successively according to their solubility in the fluid. With the increase of pressure, the substances with larger polarity and large molecular weight have basic properties, so the supercritical extraction of different extraction components under the programmed pressure increase can also play the role of separation.

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