Advantages of VTA Short-path Molecular Distillation:
High turbulence; the scraped film maintains high turbulence, enhancing mass and heat transfer.
- Material dwell time is very short, only a few seconds, reducing the product's thermal stress
Single-step distillation, no recirculation required
The film is very thin, unaffected by the static liquid surface pressure.
Multiple film scraping systems are available, offering the possibility to handle high viscosity materials.
Low operating pressure: An operating pressure as low as 0.001 mbar (0.1 Pa) can significantly lower the boiling point of materials, offering a gentle thermal separation method.
The VK125-15 Short-Range Molecular Distillation is a classic product from VTA. VTA's pilot plant in Germany also uses this model as pilot equipment to provide process services to clients. The single-stage VK125-15 occupies an area of 2.5 meters in length, 1.5 meters in width, and 3 meters in height, with no specific space requirements for installation. More importantly, the maintenance of this equipment is extremely simple, allowing for the disassembly and assembly of the rotor without the need for lifting tools on top, making it highly suitable for frequent operation and maintenance.
VTA offers turnkey skid-mounted units. The equipment is fully assembled and tested at VTA's factory, then shipped to the customer's site as a complete unit. The customer only needs to connect power and basic utilities to begin production. This significantly reduces installation and commissioning time on-site.
Continuous operation processing, with a processing capacity of approximately 20 kg per hour, the daily volume to be processed will be quite substantial. The VK125-15 offers a good linear scale for industrial expansion, providing important parameters for the selection of industrial equipment.
Due to the use of VTA high-precision feeding and discharging gear pumps, there is no need for any buffer tank during discharge, allowing for direct discharge under high vacuum, and the distillation ratio of light and heavy components can be calculated.
All parts in contact with materials are designed for heating, with no dead zones. They can handle materials with melting points up to 180°C, as well as processing conditions with light components with melting points up to 140°C, due to the保温 heating of the discharge area for light components.
There are two types of scraper rotors available for selection. The WRS roller-type rotor is suitable for handling materials with low viscosity, while the SKR elastic scraper rotor is capable of dealing with materials of high viscosity. This is due to the loading force exerted by the elastic metal sheet on the scraper, which allows for excellent scraping and turbulent effects on the liquid film. Over 80% of the pilot-scale equipment at VTA is equipped with the SKR elastic scraper rotor, leveraging its superior evaporation efficiency. The scraper material has passed the FDA certification.
