Molecular distillation uses the difference in molecular free path when light recombination molecules in the liquid phase escape from the main body of the liquid phase to achieve separation. The basic condition for molecular distillation is: the molecular free path of light component molecules escaping is equal to the distance between the heating surface and the condensing surface, which can correctly reach the built-in condenser to achieve trapping, while the molecular free path of escaping recombinant molecules is required It is smaller than the distance between the heating surface and the condensation surface, so that it will not reach the built-in condenser, that is, the built-in condenser only captures molecules of light components, and realizes the separation of light components.

The short-path distiller is designed according to the principle of molecular distillation. It is a model that simulates molecular distillation. Because the heating surface and the cooling surface are very close and the resistance is small, it is called the short-path distiller. Due to the function of the built-in condenser, the vaporized vapor phase can be instantly liquefied and the volume is reduced, so the high vacuum inside the equipment can be maintained. The operating vacuum of the short-path distiller can reach 0.1Pa (absolute pressure), which cannot be achieved by other evaporation and distillation equipment. Therefore, the short-path distiller is especially suitable for materials that have high boiling points under normal pressure and are difficult to separate by ordinary separation methods. A new type of liquid-liquid separation equipment has been successfully experienced in many industries. According to the different characteristics of the material, there are also various types of scraper. The principle is similar to that of the scraper evaporator.

The processing capacity of the short-path still:

Since the short-path distiller is generally used to process materials with high boiling points, the viscosity is usually high, and it is usually heated with heat transfer oil, so the separation capacity is also small. Depending on the material, the separation capacity is 30-70kg/m2.hr .

Our company has specially set up a small test device for short-range distillation, scraper and short-range combination, as a pre-sale service for customers to test, so that customers have a perceptual understanding of short-range distillation, and provide help for customers in the selection of short-range.

Models and specifications of short path distiller: