What is Short-path Distillation?
Short range distillation, also known as fractionation, is a special liquid-liquid separation equipment. It is different from traditional distillation which depends on the principle of boiling point difference separation, but on the difference of the average free path of the movement of different substances. High quality distillates are produced by heating crude oil in a flask and stirring the oil with a magnetic stirrer. These compounds are separated in oil by heating until they are converted into vapors. The evaporated compound rises and is then cooled back to the liquid using a condensing coil.
Short-range distillation: Short-range distillation is a "bottle-neck-bottle" type of distillation commonly used in laboratories. Laboratory vacuum distillation this is a distillation technique, and laboratory glass distillation is usually performed under reduced pressure. A typical example is distillation, which involves distillate from one glass sphere to another without the need for a condenser that separates the two chambers. The technique is typically used to stabilize compounds at high temperatures or to purify small numbers of compounds. The advantage of vacuum distillation is that the heating temperature (at reduced pressure) can be well below the boiling point of the liquid at standard pressure, and the distillate only has to travel a short distance before condensing. The shorter path ensures minimal loss of compounds on the side of the equipment and is suitable for materials that do not decompose or deteriorate easily at high temperatures.
How Short-path Distillation Works?
The term gets its name from the short distance that distillate vapor travels in these systems. Typically, the distillate vapor only has to travel a few inches in total.With a vacuum applied to the total setup, the distillate vapor passes from one flask (or another piece of glassware) to another, which separates and purifies the sample in the process. A heating mantle heats the substance, which vaporizes your desired end product. These vapors rise up through a distillation head, where they condense and trickle down into one or more collected evaporating flasks. The simplicity of the system makes it so effective and easy to use. While the initial sample or compound may have undesirable substances contained within, the resultant output is a highly pure, condensed, final product. In some cases, a second pass may be desired, but this is usually due to operator error or to a problem occurring with the first pass. Thanks to the reduced pressure of the vacuum system, the amount of heat necessary to achieve your desired results can be considerably lower than it would otherwise have to be. This is especially useful for sensitive organic compounds which may have adverse reactions (or even combust) at higher temperatures. Reduced pressure safely lowers the boiling point of your compounds, giving you a pure distillate without damaging your valuable products in the process.
1. Heat source
2. Round bottom flask
3. Still head
4. thermometer
5. Condenser
6. Cooling water in
7. Cooling water out
8. Receiving flask
9. Vacuum Inlet
10. Still receiver
11. Heat control
12. Stirrer speed control
13. Heat source
14. Heating bath
15. Stirrer
16.Cooling bath
Deciding on which short path distillation equipment you need or which fractional distillation apparatus to utilize varies depending on the technology used but generally the basics are the same in a typical short path distillation setup:
1.Condensers
2.Chilling units
3.Heating equipment for evaporation
4.Vacuum pump and gauge – for sucking and trapping air
5.Receiving vessel – for collecting of fractional distillates
Compact Size: Short path distillation is a compact purification method. Because it does not take up much space, it is highly advantageous for laboratory applications in which a minimal instrumentation footprint is necessary.
Easy To Use: Another key benefit of short path distillation is that it is relatively easy to implement. While the majority of conventional distillation methods rely on large, complex apparatuses, short path distillation requires more compact, simple equipment that is still able to achieve high distillate purity levels.
Reduced Waste: As previously stated, the compound in a short path distillation apparatus only needs to travel a distance of a few centimeters from the heated flask to the condenser tube. As a result, a minimal amount of the compound is lost on the sides of the equipment. Thus, short path distillation can help reduce waste and is highly advantageous for situations in which an expensive compound needs to be distilled.
Ideal for Compounds That Are Unstable at Higher Temperatures: Because short path distillation uses vacuum pressure to reduce the boiling point of the compounds inside the apparatus, the process can be completed at a lower temperature. For this reason, short path distillation is an ideal option for distilling compounds that are unstable at higher temperatures.
Distilling Small Quantities of Compound: In addition to distilling compounds that are unstable at higher temperatures, short path distillation is also advantageous for applications that require small quantities of a compound to be distilled. Because the liquid compound travels across a shorter surface area, less compound is lost on the equipment. Thus, smaller quantities can effectively be distilled without losing a large percentage of the product along the way.
Faster Completion Time: Many conventional evaporation apparatuses can take several hours to complete a separation. Short path distillation, on the other hand, can complete a separation in a matter of seconds due to the pressure vacuum it implements, which helps greatly speed up the process.
Deciding on which short path distillation equipment you need or which fractional distillation apparatus to utilize varies depending on the technology used but generally the basics are the same in a typical short path distillation setup:
1.Condensers
2.Chilling units
3.Heating equipment for evaporation
4.Vacuum pump and gauge – for sucking and trapping air
5.Receiving vessel – for collecting of fractional distillates
Our total solution comes with all the required temperature control equipment and vacuum system, which can be used directly