Short path molecular distillation (short-path distillation) is a new separation technique that addresses the problems that conventional distillation techniques cannot solve. It can achieve "liquid-liquid" separation at very low vacuum according to the mean free path difference of molecular motion under the temperature of much lower than the liquid boiling point; Mainly the use of scraper system forcing liquid film evaporation or distillation of a highly efficient evaporation, distillation equipment, deodorization, degassing reaction and supporting heating, cooling and other unit operations, can be widely used in food, fine chemicals , Electronic materials, plastic engineering and polymer (such as polyols, fatty acids, polyphenols, polyurethanes, epoxy resins, milk fat, GMS, flavors and fragrances, heavy oil and paraffin oil) purification and so on. The system can also be used to recover organic solvents from industrial effluents. Especially suitable for high boiling point, heat-sensitive, easily oxidized material separation and purification.

Molecular distillation is a distillation process in which molecules evaporated on the heating surface reach the condensation surface as short as possible under high vacuum (< 10Pa) to condense, so as to realize liquid-liquid separation. When the distance between heating surface and condensation surface is less than or equal to the average free path of evaporated molecules under operating vacuum and temperature, the distillation process is also called molecular distillation.

Distillation process: the material enters the short-range distiller from the upper flange cover, and the distribution plate is continuously and evenly distributed on the vertical cylinder heating surface. When the material falls by gravity, the rotating film scraping device forces the extremely thin turbulent liquid film on the heating surface After a short distance, the evaporated molecules reach the built-in condenser and condense. They are discharged through the discharge port at the bottom of the evaporator. The heavy components enter the residue collection tank of the short-range distiller and are discharged from the side outlet.

Glass short path molecular distillation machine

1. High working vacuum and low distillation temperature;

2. Large heat transfer coefficient and high evaporation efficiency;

3. The heating time is short, the "dead angle free" design of DZ series short range distiller avoids the accumulation of materials in the distribution plate, heating surface and scraping film system, and reduces the thermal polymerization and thermal decomposition of heat sensitive substances.

Stainless steel short path molecular distillation machine

1. Jacketed pipeline has a good heat preservation.

When the melting point of material is higher than room temperature,will not congeal in pipeline.

2. Continous feeding with high precision gear pump.

The material flow rate does not change with pressure difference,as long as the set speed is the same, the delivery amounts is same.

3. Continous to discharge with two high precision gear pumps.

4. Connection with heater and chiller, convenient and ordered.

5. Large condenser area, high evaporation rate. 

1. Short residense time.

2. High evaporation rate.

3. Low processing temperature.

4. Low vacuum.

5. Continous feeding and discharging.

6. Plug and play.

7. High-thermal conductivity,high efficiency.

8. Durable in use.