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What is short path distillation equipment?

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What is short path distillation equipment?

2021-10-05
            Short-path distillation is a method of separating mixtures based on the difference in volatility in a boiling liquid mixture, which is carried out under reduced pressure. When the sample mixture to be purified is heated, its vapors rise a short distance into a vertical condenser, where they are cooled by water. This technology involves cooling the distillate over a short distance (usually only a few centimeters) from the heating source to the vertical condenser. At the same time, the short-path distillation equipment can control the separation process by heating the distillation column and adjusting the feed rate. Short-path distillation is considered to be an efficient and rapid separation method that can obtain pure products in a shorter time.




Characteristics of short-distance distillation equipment


  1. The physical separation process keeps the material in its natural state without any pollution and with high purity.
  2. The heating time is extremely short, the vertical condensation instrument is short, and the short-range distillation can be completed within tens of seconds, with less residue, low carbon and environmental protection, which is conducive to maintaining the activity of the material.
  3. Durable, cold trap protects the vacuum pump from steam contamination and damage.
  4. Visibility: Full transparency is conducive to observing the various changes of materials under different pressure, temperature, flow rate and speed conditions, and helps to quickly obtain experimental data and determine the best process.
  5. Small footprint. This technology is widely used in laboratories because of its compact structure, small instrument footprint and simple operation.
  6. High cleanliness and high purity. During the whole process, the material is only in direct contact with glass and PTFE materials, which reduces the possibility of reaction with metals. It is non-toxic, harmless, pollution-free and residue-free, and pure and safe products can be obtained.



Application of short-distance distillation equipment

            Short-path distillation is a general technology with a wide range of applications, such as organic solvent recovery, natural product extraction, drug synthesis and production of fine chemical products. It is easy to operate and has high product purity. It is used to separate high-boiling, heat-sensitive and easily oxidized substances.


            In the pharmaceutical manufacturing process, short-path distillation extracts pure components from complex mixed reactants;

            In the spice industry, short-distance distillation equipment is used to separate and extract aromatic compounds in spices, using a gentle distillation method that does not change its delicate structure and purifies to a high concentration.

            Used for distilling polyurethane in the chemical industry, short-distance distillation equipment can effectively separate impurities in polyurethane, thereby ensuring the purity and quality of polyurethane.

            In the field of environmental protection, this process can be used to treat wastewater and waste gas to achieve efficient separation and recovery of harmful substances.

            In the field of new energy, short-range distillation devices can also be used to extract and purify biomass energy, contributing to sustainable development.

            In the field of fine chemicals, it is used to separate and purify various compounds to ensure the quality and stability of the final product.


            In addition, short-path distillation equipment plays a role in various scientific fields. It is widely used in the food industry, petrochemical industry and environmental science to process and purify specific substances.