10 Liter Short Path Distillation
The 10 liter short path distillation is equipped with a vacuum pump and a low-temperature coolant circulation pump to realize distillation extraction under vacuum conditions. We sell 5L short path distillation, 10 liter short path distillation, etc. 10 liter short path distillation is a relatively new separation technology, which can solve a large number of problems that cannot be solved by traditional distillation technology, and is a powerful supplement to conventional distillation equipment. Molecular distillation is a special liquid-liquid separation technique that can operate under extremely high vacuum. It facilitates the separation of liquids at temperatures well below their boiling points, based on differences in the mean free path of molecular motion. It is especially suitable for the separation of high boiling point, heat sensitive and easily oxidized raw materials, and is more suitable for laboratory use.
The 10 liter short path distillation equipment is mainly composed of degassing system, feeding system, molecular still, fraction collection system, heating system, cooling system, vacuum system and control system. The basic process of molecular distillation According to the basic theory of molecular distillation, the distillation process can be decomposed into the following four steps: ① The material forms a liquid film on the heating surface; ② Molecules evaporate freely on the surface of the liquid film; ④ Light molecules are captured on the condensation surface, and heavy molecules return to the material liquid film. Collection of distillates and residues.
1. Molecules diffuse from the liquid phase body to the evaporation surface:
Usually, the diffusion speed in the liquid phase is the most important factor controlling the molecular distillation speed, and the thickness of the liquid layer should be reduced as much as possible and the flow of the liquid layer should be strengthened.
2. Free evaporation of molecules on the surface of the liquid layer:
The evaporation rate increases with the increase of temperature, but the separation factor sometimes decreases with the increase of temperature. Therefore, the thermal stability of the processed substance should be taken as the premise, and a more economical and reasonable distillation temperature should be selected.
3. Molecules fly from the evaporation surface to the condensation surface:
In the process of flying from the evaporating surface to the condensing surface, the vapor molecules may collide with each other, or may collide with the remaining air = particles between the two surfaces. Since evaporated molecules are much heavier than air particles, and most of them have the same direction of motion, their own collisions have little effect on the direction of flight and evaporation speed. The residual gas molecules are in a chaotic thermal motion state between the two sides, so the number of residual gas molecules is the main factor affecting the flying direction and evaporation speed.
4. Molecules condense on the condensation surface:
As long as there is a sufficient temperature difference between the hot and cold sides (generally 70~100°C), and the form of the condensation surface is reasonable and smooth, the condensation step can be completed in an instant, so it is very important to choose a reasonable form of condenser
Advantages of the 10 liter short path distillation:
1. The degree of separation is higher than that of traditional distillation. Short-path molecular distillation can separate substances that are not easily separated by conventional methods.
2. There is no boiling and bubbling phenomenon in 10-liter short-path distillation. Short-range molecular distillation is the free evaporation of the surface of the liquid layer, which is carried out at low pressure. Since there is no dissolved air in the liquid, the entire liquid cannot be boiled and there is no bubbling during distillation.
3. Non-toxic, harmless, non-polluting, non-residue, pure and safe products can be obtained, the operation process is simple, and the number of equipment used is small.
Because the 10 liter short path distillation has the characteristics of distillation temperature lower than the boiling point of the material, low distillation pressure, short heating time, and high separation, it can greatly reduce high-boiling point materials and heat-sensitive substances. Difficulties in material separation technology, excellent protection of the characteristic quality of heat-sensitive materials. The 10 liter short path distillation is dedicated to the extraction of natural health products. It can get rid of the shackles of chemical treatment methods and truly maintain its pure natural characteristics.
