Description

CO2 Supercritical fluid extraction (SFE) is the newest subject in modern chemical analysis and food purification.

Supercritical fluid is a kind of material state between gas and liquid, which is neither gaseous nor liquid. This kind of material can only exist when its temperature and pressure exceed the critical point. The density of supercritical fluid is larger, similar to that of liquid, and its viscosity is close to that of gas. Therefore, supercritical fluid is an ideal extractant.

The Super Critical fluid technology is a new-type separation technology in modern chemical separation. The Super Critical extraction takes CO2 as the solvent. As CO2 fluid under super critical state has larger density and dielectric constant, larger dissolvability against substances, which can change abruptly when pressure and temperature change therefore it has not only the selection of dissolvability against some substances, the separation of the solvent with the extracted substances is also easily. The super critical CO2 extraction is specially suitable for extraction of fat-soluble and heat sensitive substances with the high boiling point, and is suitable for fine separation of different components, i.e. Super critical fine distillation.

 

Take CO2 as the solvent to make extraction and purification upon a lot of products such as biological production, foodstuff and medicines.

 Part List of Super Critical CO2 Extraction Machine

 

The device mainly consists of extraction kettle, separation kettle, fine distillation column,CO2 high pressure pump, entrainer pump, refrigeration system, heat exchange system, purifying system, pressure stabilizing system of extraction kettle, CO1 tank, flow meter, temperature and pressure control (protection) system etc.

Advantages

1. Combination of extraction and separation;
2. The extraction pressure and temperature can be adjusted according to different materials;
3. Low extraction temperature can effectively prevent the oxidation and escape of heat sensitive components, and keep the biological activity completely;
4. CO2 is cheap, high purity, easy to make, can be recycled, non-toxic, no solvent toxic residues, to prevent the extraction process of human body toxicity and environmental pollution.
5. The polarity of supercritical fluid can be changed. Under certain temperature conditions, as long as the pressure is changed or appropriate entrainer is added, substances with different polarity can be extracted, which has a wide range of applications.

Technical Parameter