Principle of molecular distillation
Molecular distillation is a special liquid-liquid separation technology, which is different from traditional distillation relying on the boiling point difference separation principle, but rely on the difference in the average free range of molecular motion of different substances to achieve separation. Here, the free range of molecular motion (denoted by ) is the distance travelled by a molecule between two adjacent collisions.
Liquid mixture along the heating plate flow and be heated, light and heavy molecules will escape from the liquid surface and enter the gas phase, due to the light and heavy molecules of the free range of different, therefore, the molecules of different substances from the liquid surface after the escape after the movement of different distances, if you can rule the local setting of a condensate plate, light molecules to reach the condensate plate is condensed and discharged, and heavy molecules to reach the condensate plate is not along the mixture of liquid discharged. In this way, to achieve the purpose of material separation.
Characteristics of molecular distillation
Molecular distillation technology as a high-tech separation technology with the international synchronous, with other separation technology can not be compared with the advantages of
- low operating temperature (far below the boiling point), high vacuum (no load ≤ 1Pa), short heating time (in seconds), separation efficiency, etc., especially suitable for the separation of high-boiling, heat-sensitive, easy to oxidise the separation of substances,
- can be effectively removed from the low molecular material (deodorization), heavy molecular material ( It can effectively remove low molecular substances (deodorisation), heavy molecular substances (decolourisation) and impurities in the mixture.
- 3, the separation process for the physical separation process, can be well protected from contamination of the separated substances, especially to maintain the original quality of natural extracts.
- the separation degree is high, higher than the traditional distillation and ordinary film evaporator.
