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——Design

Different from the traditional wiped film evaporator design, the condenser is located inside the short path evaporator body.

——Operation

Feed liquid is admitted into still under high vacuum, immediately spread into a very thin film and forced quickly down the evaporation surface. Heated walls and high vacuum drive the more volatile components (distillate) to the external condenser as the less volatile components (residue) continue down the cylinder. The resulting fractions, thus separated, exit through individual discharge outlets. Depending on application, the desired product is either the distillate or the residue fraction. Small amounts of condensable low MW compounds collect in cold trap upstream of vacuum system. For high solvent loads, an optional external condenser may be installed immediately downstream of the still.

——Particular features

Continuous distillation process.
Very low operating pressures up to 0.1Pa (100Pa=1mba). (The considerably lower pressure in the short path evaporator is obtained by the short distance for the vapours on their way from the evaporator surface to the condenser. )
The very low operating pressures ensure very low distillation temperatures and therefore a very gentle distillation is possible.
Short residence time. (Thanks to the short residence time, the low evaporation temperature and the immediate cooling of the concentrate, thermal stress and decomposition of the product can be minimized.)
High evaporation rates.

——Fields of application

For the thermal separation of high molecular and high-boiling products.
For heat sensitive materials.

Shanghai Dea chemical equipment Co.,Ltd

——We devote to design and develop the equipment of chemical separation and abstraction.

——We came from East China University of Science and Technology, which we long-term cooperated with later. And now, we serve for many famous universities, such as Tsinghua University , Sun Yat-sen University , etc.

——We provide equipment of distillation and extraction for the technicians in the area of chemical , medicine and food industry.

——We own senior engineers who have rich experience in chemical engineering.

——Our products can be used in lab-scale, pilot-scale experiments and small-scale production.

——The experimental results are more authentic by using our products thanks to the continuous operation during the course of the experiments or pilot-scale experiments.

——We repaire imputed equipments out-of-warranty for UIC,POPE,BUCHI in the past few years, which made us accumulating rich experience.

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We not only produce distillation equipment,

but also study distillation  process,improve the distillation equipment.

Services Dea provide

Technology Consulting
We provide technology consulting and plan designing, please contact with us if you are not satisfied the extraction separation effect with your products.

Feasibility studies and process development
As we all known, testing and process development of customers’ products plays an important role in the whole project. And an experimental result may always achieve better than the complex theoretical calculations. We have a process development team which has rich experience, we experiment new product and face new challenge everyday. Our Purpose: To conduct initial research and development process, to prove the feasibility of separation; to provide design data for industrial production systems; to select the appropriate equipment and optimize the design of the equipment by material properties for each experiment.

Provide experimental equipment
For the separation of mixtures, especially those who are not mature mixture used in the separation plant, a simple theoretical calculation is not enough. Testing and process development for product is crucial, experiment is always the fastest and most effective way to determine the feasibility of separate products, which is better than the results of complex theoretical calculations. Development and design processes are usually done in the secondary laboratory test equipment with a lot of experimentation. Thus, we have established an independent laboratory which is continuous improved.

Process Configuration Design
Maybe you only want to buy the main equipment instead of engineering procurement and construction out of financial condition. Meanwhile, maybe a complete and detailed engineering design plan will trouble you. And we can provide you the chemical plant engineering design for you on base of our long-period experience in engineering design and rigorous style of work,

After-sale service
Equipment supply, installment and moderating.
Operator training.

Our equipment has been assembled and tested prior to shipping finished, so it is a whole package, which can be used directly after unpacked. Please measure the size of the door in order to handle the equipment to the right position. For self-assembly, please inform in advance.