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Features of molecular distillation equipment:

1. Ordinary distillation is the separation operation at the boiling point temperature, and molecular distillation equipment as long as there is a sufficient temperature difference between the cold and hot surfaces. It can be separated at any temperature. Therefore, the molecular distillation operation temperature is much lower than the material Boiling point.

2. Ordinary distillation has bubbling and boiling phenomena, while molecular distillation is free evaporation on the surface of the liquid film. The operating pressure is very low. It is generally on the order of 0.1-1 Pa, and the heating time is very short, generally only ten seconds to tens of seconds.

3. The evaporation and condensation of ordinary distillation are reversible processes, and the liquid phase and the gas phase are in a dynamic phase equilibrium. In the molecular distillation process, the molecules escaping from the heating surface directly fly to the condensation surface, and theoretically do not return to The possibility of heating the surface, so molecular distillation has no difficult to separate substances.