Method Of Operating Molecular Distiller Under Vacuum

The molecular distiller is a distillation method operating under high vacuum,in which the average free path of the vapor molecules is greater than the distance between the evaporation surface and the condensing surface,so that the difference in evaporation rate of each component in the liquid can be utilized. The mixture is separated,and at a certain temperature,the lower the pressure,the larger the mean free path of the gas molecules. When the pressure in the evaporation space is very low (10-2 to 10-4 mmHg) and the condensation surface is close to the evaporation surface,the vertical distance between them is smaller than the mean free path of the gas molecules,and the vapor molecules vaporized from the evaporation surface may not Other molecules collide and condense directly to the condensing surface.

Molecular distillation technology has low operating temperature (far below boiling point),high vacuum,short heating time (in seconds),no thermal decomposition,high separation efficiency,etc.,especially suitable for separation of high boiling point,heat sensitive and easily oxidizable substances. Molecular distillation can effectively remove light molecular substances (deodorization),heavy molecular substances (decolorization) and remove impurities in the mixture; high resolution,higher than traditional distillation and thin film evaporation technology; easy to form continuous production,simple operation; The distillation distance of molecular distillation is short,and the average free path of the molecule generally does not exceed 25 mm,and the energy consumption is small.