What's Short Path Distillation Apparatus? TOPTION Evaporator Supplier
Compared with traditional distillation method using the materials' boiling point difference to reach
separation purpose. Molecular distillation is a special kind of liquid - liquid separation technology.
How molecular distillation achieve separation purpose?
1. Based on the mixture's each materials' different molecular motion mean free path. According to the
principle of molecular motion mean free path, under ideal condition making the liquid mixture flowing
through the heating plate to heat, light and heavy molecules will escape from liquid level, and enter into
the gas phase.
2. Due to the light and heavy molecular free path is different, so after different material molecules escape
from the liquid surface, their moving distance is different, if properly set up a cold condenser plate, then
light molecules reach condensation plate be condensing exhaust, and heavy molecules can not reach
condensation plate, the exhaust along with the mixture liquid.
Why molecular distillation is also named short path distillation?
1. According to this technical principle TOPTION engineers have design the falling film type, centrifugal type,
wiped film type evaporators, in actual operation due to various limitations, it's difficult to achieve ideal molecular
distillation separation, and there's a common characteristics of various vaporator: the evaporation surface and
condensation surface distance is very short, the molecules escape from evaporation surface to condense into
liquid, this path is very short so called short path distillator.
2. Rotating scraper type short path distillator separation process please check the drawing, materials charge
at the top of the evaporator, through the material liquid distributor of the rotor, material is continuous evenly distribution
in the heated surface, coating scraper blow materials into a very thin layer, as the turbulence of the liquid film.
3. During this process, light molecules escape from the heating surface, reach the condenser and be
condensed as liquid, then along the condenser tube shed, through the evaporator discharge tube out, which
is located at the bottom of evaporator. Residual liquid also is the heavier molecules are collected under the
heating area of circular channels, again through the side of the discharge tube outflow.
A complete short path distillation apparatus set should include:
1. Short path evaporator. 2. Heating system.
3. Material charging system. 4. Cooling system.
5. Vacuum system. 6. Material collection unit, etc.
According to the nature of the separation material, reasonable selection and configuration of each unit, this
is very critical for whole distillation system's performance.
TOPTION strong engineers team is consist of chemical synthesis, technology and engineering, chemical machinery
and other senior experts, mature synthetic technology and process engineering strong support for the chemical
machinery manufacturing technology, complete sets of configuration is more pertinent and cut into the customer's
Learn more about laboratory type short path distillation apparatus design, or find whole set short path distillation
system, welcome contact firstname.lastname@example.org get free consultation, thanks.