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Introduction

Short-path distillation is a relatively new separation technique that solves a number of problems that conventional distillation techniques cannot solve.Short-path distillation is the precise positioning of the condenser in the center of the scraper film evaporator,and the material evaporation and condensation process is instantaneously completed in the same evaporation chamber.

Structure and characteristics

1.Place a condenser inside on the basis of the scraper evaporator.When the light mixture molecules move to a certain distance after the feed mixture is heated,the condenser is condensed into a liquid and separated,and the heavy material flows down the wall.Since the light material vapor phase is condensed internally,the vacuum pressure drop is small to maintain a high vacuum inside the device.

2.Extremely high vacuum

3.The operating temperature is much lower than the boiling point of the material

4.Molecular distillation characteristics: The separation of the mixture is realized due to the different mean free path of different kinds of molecular escape liquid surface,and does not need to be completely boiling,so the actual evaporation temperature of the material in the evaporator is slightly lower than the empty space.The theoretical boiling point of the material under conditions.

5.Short-range distillation has a short heating time

6.Excellent mass transfer and heat transfer efficiency

Advantages

1.High vacuum,low distillation temperature,short residence time,high evaporation efficiency,continuous distillation process.

2.For the separation of high molecular weight,high boiling point and heat sensitive and easy oxide materials,there are advantages unmatched by conventional methods to obtain high yield and better product quality.

3.Short-path distillation can not only effectively remove low molecular substances in liquids,such as organic solvents,odors,etc.,but also selectively distill the desired product to remove other impurities,so it is regarded as a protector and returner of natural quality.

4.Short-path distillation can achieve physical processes that cannot be achieved by conventional separation methods.Therefore,it is widely used as a means of deodorization,decolorization and purification in the separation of some high-value materials.

5.The wall of the evaporator is self-cleaning,with less pollution and easy cleaning.

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