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Molecular Distillation Equipment
Example: The specification list of distillation for CBD
(1) Laboratory Test (<20L)
NCF-10A, NCF-20A, NCF-30A, NCF-50A
(2) Pilot Production (20L<100L)
NCF-100, NCF-200
(3) Industrial Production (100L<300L)
NCF-500
2. Customization
The details pls download The Request List of Short Path Distillation
(1)Design support
(2) Directly supply the Senior R&D organic intermediate, shorten your R&D time and cost
(3) Share the advanced purifying technology with you
(4) Supply the high quality chemicals and analysis reagent
(5) We want to assist you on Chemical Engineering (Auto CAD, Aspen plus etc.)
3. Assurance
(1) CE and ISO certification Registered
(2) Trademark: ACHIEVE CHEM(since 2008)
(3) Replacement parts within 1-year for free
Description
Technical Parameters
Molecular distillation equipment is an efficient technical equipment for separating liquid mixture components. Based on the difference of boiling points of different components at different temperatures, it realizes molecular separation by controlling temperature and pressure. Molecular distillation, also known as short path distillation, is a continuous distillation process under high vacuum (the pressure of residual gas molecules is lower than 0.1Pa).
We provide Molecular distillation equipment, please refer to the following website for detailed specifications and product information.
Product: https://www.achievechem.com/chemical-equipment/short-path-distillation.html
Product Introduction
The external cold trap of molecular distillation equipment is an indispensable part of molecular distillation technology. Its exquisite design and powerful function play a crucial role in improving distillation efficiency and ensuring product quality.
◆ The basic definition of an external cold trap
External cold trap, as the name suggests, is a device used outside molecular distillation equipment to condense and adsorb gases or capture oil and gas. It is usually installed between the vacuum container and the vacuum pump as part of the vacuum system, playing an important role in improving vacuum efficiency and reducing the impact of corrosive gases on the vacuum pump. The external cold trap utilizes automatic cascade refrigeration technology, which can condense and adsorb impurity gases at lower temperatures, ensuring the purity and efficiency of the distillation process.
◆ The working principle of an external cold trap
The working principle of an external cold trap is mainly based on the phase transition characteristics of matter. During the distillation process, some impurities such as water, oil, corrosive gases, etc. may remain in the reaction system. These impurities will evaporate as distillation proceeds, affecting distillation efficiency and product quality. The external cold trap condenses these impurity gases into liquid or solid on the surface of the cold trap by lowering the temperature, thereby effectively capturing and removing them. At the same time, an external cold trap can also play a role in reducing pressure. When the vapor equilibrium between impurity molecules and target compounds changes, using a cold trap can reduce the pressure of the reaction system and improve distillation efficiency.
◆ Characteristics of External Cold Traps
1) Efficiency: The external cold trap adopts advanced refrigeration technology and efficient condensation surface design, which can condense a large amount of impurity gases in a short period of time, significantly improving distillation efficiency.
2) Flexibility: The external cold trap can be customized according to different distillation needs, such as adjusting the refrigeration temperature, changing the condensation surface material, etc., to meet the distillation requirements of different substances.
3) Safety: The external cold trap can effectively remove corrosive gases and harmful substances, reduce damage to vacuum pumps and distillation equipment, and improve the service life and safety of the equipment.
4) Environmental friendliness: The external cold trap captures impurity gases through condensation, reducing environmental pollution and meeting the requirements of green chemistry and sustainable development.
Types
Product Features
System design with good sealing performance
The overall design of a molecular distillation system needs to consider sealing performance. Firstly, the various components and interfaces within the system need to be designed as tightly as possible to reduce the possibility of gas leakage. Secondly, high-quality sealing materials such as sealants and gaskets should be used internally to ensure the sealing performance of the system. These measures work together to enable the molecular distillation system to operate stably under high vacuum conditions.
Detailed list of sealing measures
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(1) Application of Sealants and Gaskets:
High quality sealants and gaskets are used to seal various interfaces and connections in molecular distillation systems. These sealing materials have excellent corrosion resistance, high temperature resistance, and sealing performance, which can effectively prevent gas leakage.
(2) The use of magnetic drive systems:
Some advanced molecular distillation systems use magnetic drive systems, so that the drive rod of the driving motor does not need to pass through the sealing surface of the main still. This design avoids friction and wear between the transmission rod and the sealing surface, improving the sealing performance of the system.
(3) Integrated design of built-in condenser and main evaporator:
This design reduces installation difficulty and the number of connection interfaces, and increases the vacuum sealing of the system. Meanwhile, the integrated design also reduces the possibility of air leakage due to interface sealing.
(4) Special design of connection interface seal:
The connection interface seal of the molecular distillation system adopts a specially designed PTFE O-ring linear seal and is fastened with a horseshoe clamp. This design ensures the tightness and sealing of the connection interface, preventing gas leakage.
(5) Vacuum grease coating:
During the operation of molecular distillation, a layer of vacuum grease needs to be applied to the grinding mouth, sealing surface sealing ring, and joint before installation. Vacuum grease has good sealing and lubrication properties, which can fill small gaps and uneven surfaces, and improve the sealing performance of the system.
(6) The use of glass still:
Glass still has excellent transparency and corrosion resistance, and its structure is also more compact. Using a glass still in a molecular distillation system can further improve the sealing performance of the system.
(7) Vacuum sealing:
Molecular distillation machines are usually operated in a vacuum environment, which can reduce intermolecular interactions, reduce the impact of boiling point rise, and improve operational efficiency and quality. Therefore, the equipment should be designed with good vacuum sealing, including gaskets, sealing strips, O-rings, etc.
(8) High temperature sealing:
During the molecular distillation process, heating equipment is required, which requires the use of high-temperature sealing. Seals are usually made of high-temperature resistant materials, such as metal corrugated pipes, high-temperature resistant fluororubber, etc.
(9) The correct connection method:
The connection method between different components in the equipment can also affect the sealing performance of the equipment, usually using threaded connections, bayonet connections, flange connections, etc.
(10) Shell protection:
Some equipment may experience fatigue, oxidation, expansion, and other problems due to long-term operation in high and low temperature environments. In this case, shell protection can be used to reduce damage such as oxidation and cracks.
Applications
Molecular distillation equipment is widely used in the field of plant essential oil.
◆ Essential oil extraction: Molecular distillation column can be used to extract essential oils from plants, including lavender, rosemary, mint and tea tree. The plant essential oil is separated in an oil-water separator by heating the plant material at a specific temperature and pressure to volatilize it, and then collecting the material by condensation.
◆ Separation of essential oil: Many plants contain a variety of compounds, some of which have beauty, health care and medical effects. Molecular distillation unit can separate and extract the beneficial components in plant essential oil to meet different needs.
Preparation of food spices: Plant essential oils have a wide range of food applications, such as making various spices, condiments, drinks and so on. The distillation equipment can extract plant-specific aromatic components and prepare spices and condiments that meet food quality standards.
◆ Preparation of cosmetic formula: Plant essential oil has many cosmetic effects, such as moisturizing, anti-inflammatory and freckle-removing. The equipment can extract plant essential oils and combine them according to the needs of cosmetic formulas to prepare cosmetic formulas that meet the needs of different skin types.
◆ Preparation of medicinal essential oil: Many plant essential oils have medicinal value and can be used to treat many diseases, such as rosemary essential oil and tea tree essential oil. It can remove other components extracted at the same time and improve the content and purity of beneficial components in essential oil, thus making it more suitable for medical field.
Market Analysis and Growth Drivers
● Market Size and Forecast
The global molecular distillation equipment market was valued at USD 420 million in 2023 and is projected to grow at a CAGR of 6.3% through 2030, driven by:
Pharmaceutical R&D: Rising demand for high-purity APIs and cannabinoid-based drugs.
Sustainability Initiatives: Circular economy trends in plastics and oil recycling.
Health and Wellness Trends: Premiumization of nutraceuticals and essential oils.
● Regional Dynamics
Asia-Pacific: Dominates due to rapid industrialization in China, India, and Southeast Asia. China alone accounts for 35% of global production capacity.
North America: Leads in pharmaceutical and cannabis-derived product innovations.
Europe: Focuses on green chemistry and food-grade distillation technologies.
● Key Players and Innovations
Pope Scientific (USA): Pioneers in wiped film evaporators with integrated fraction collection.
UIC GmbH (Germany): Specializes in glass-lined short-path distillers for pharmaceuticals.
KDK Corporation (Japan): Offers high-capacity falling film evaporators for petrochemicals.
VTA (Switzerland): Innovates in hybrid distillation-crystallization systems for ultra-pure separations.
Conclusion
Molecular distillation equipment is not merely a tool-it is a gatekeeper of purity, enabling industries to harness the full potential of complex molecules while preserving their integrity. By combining ultra-high vacuum technology, precision engineering, and intelligent automation, these systems redefine what is possible in separation science.
As the world moves toward sustainability, precision medicine, and circular economies, molecular distillation will play a pivotal role in refining everything from life-saving drugs to zero-waste plastics. For manufacturers, researchers, and innovators, investing in this technology is not just a competitive advantage-it is a commitment to pushing the boundaries of purity and performance.
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