Introduction of short path distillation unit:

Short path distillation is a continuous process developed in the 1960s for separation operations under high vacuum. Under high vacuum, since the distance between the heating surface and the condensing surface of the short-path distiller is less than or equal to the mean free path of the molecules of the material to be separated, when the molecules are in the short path distillation
When evaporating on the surface of the liquid film formed on the heating surface of the still, the molecules do not collide with each other, move to the condensation surface without obstruction and be condensed on the condensation surface, so that the materials can be separated. The basic principle of a short path distillation unit is to separate components by their different boiling points. First, the feedstock is converted to vapor and then condensed to liquid at controlled temperature and pressure as it passes through the condenser column. The vapor will be condensed back to liquid state in the condenser column and directed to the collection bottle, thus completing the simple short path distillation process of short path distillation for cbd.
 

The main features of the short path distillation unit:
 

The main feature of the short-path distillation process is to reduce the boiling point of the product and the residence time in the heating zone, so that the product is only subjected to a very short evaporation temperature. In order to meet this requirement, the product must be uniformly distributed into a thin film on the surface of the evaporator, which is the only way to limit the volume of the product in the evaporator, and the short path distillation equipment for sale evaporator can fully meet this process requirement. The condensing surface of the inner condenser and the evaporator surface are only 2 inches apart, allowing the maximum flow rate of product vapor. The crude product enters the distillation column, and a rotating scraper makes the product evenly distributed into a thin film on the heated evaporator wall and flows downward rapidly. At low pressure, the theoretical amount of vapor reaches the condenser surface with no significant loss and the short path distillation kit thc. The product stays at a constant temperature for only a few seconds. The volatile components are immediately moved to the cryogenic separator for condensation, and then the desired fractions are separated.
The material is transferred from the feeding tank to the main evaporator, the jacket is continuously heated, and the film scraper scrapes the material into an extremely thin, turbulent liquid film, which is propelled downward in a spiral shape. The main evaporator's built-in condenser provides a short path for the vapor molecules to move from the heating surface to the condensing surface. During the descending process, the lighter components (low boiling point, small molecular weight) in the feed liquid begin to vaporize, move to the inner condensing surface and liquefy, and flow into the light component receiving bottle along the condensing surface. The heavier (higher boiling point, higher molecular weight) components in the feed liquid cannot reach the condensing surface, and will flow into the heavy component receiving bottle along the heating surface.
 

Short path distillation for cbd：

Marijuana can be used as a medicine. Therefore, the ingredient of interest is the cannabinoid compound CBD (cannabinol). The amount of this substance in the cannabis plant depends on the specific type. The effect of short path distillation equipment for sale is to obtain high-purity CBD.
Necessary process steps:
· Solvent for cannabis flowers and leaves, using an extraction centrifuge to take out the raw materials;
·The raw material taken out enters the single-effect evaporator for concentration and the solvent is recovered;
·The concentrated liquid enters the thin film evaporator to evaporate the residual solvent;
·Get crude oil and enter molecular distillation to steam out CBD;
· Use crystallization kettle to crystallize to obtain high-purity CBD or use high-efficiency preparation liquid phase to obtain high-purity CBD;
Short path distillation kit thc is the last process before remediation in the hemp processing process. Distillation, it turns out, shows that it can produce a product of higher purity, and in higher yields.
 
The application method for extracting cannabidiol from medical marijuana by short path distillation of cbd includes: step 1: select medical marijuana extract and set aside for use; step 2: put the extract into a feeding tank for heating, and use when the extract melts and can flow freely The feed pump drives the extract solution into the molecular short-path distiller, and uses the molecular (short-path) distiller to distill the extract solution. The molecular short-path distiller is evacuated by a vacuum pump, and the stirring speed is controlled, and a cooling/heating medium is passed into the condenser in the molecular short-path distiller; Step 3: Cannabidiol is collected in the receiving tank 2, and the receiving tank 1 The extract residue is collected in the middle, and a heat medium is introduced into the jacket of the receiving tank 1 and the receiving tank 2 at the same time for heating and heat preservation; Step 4: heating the freezing medium in the cold trap, and obtaining a small amount of tetrahydrocannabis in the receiving tank 3 Phenol and solvent; Step 5: When the extract in the feed tank is almost used up, add the extract into the feed tank until the extract is used up this time, and the experiment/production is ended.
 
The short path distillation kit thc process can be divided into the following four steps:
1. Molecules diffuse from the liquid phase bulk to the evaporation surface:
2. Normally, the diffusion rate in the liquid phase is the most important factor controlling the molecular distillation rate. The thickness of the thin liquid layer should be minimized to enhance the flow of the liquid layer. The evaporation rate increases with increasing temperature, but the separation rate sometimes decreases with increasing temperature. Therefore, a more economical and reasonable distillation temperature should be selected according to the thermal stability of the processed material.
3. Molecules fly from the evaporation surface to the condensation surface.
4. Molecules condense on the condensation surface: as long as there is a sufficient temperature difference between the hot and cold sides (generally 70~100℃) and the condensation surface is smooth, the condensation step can be completed instantly, so it is very important to choose a reasonable condenser.
 

Conditions for short path distillation of cbd:

 
1. The residual gas pressure must be low so that the mean free path length of the residual gas is a multiple of the distance between the distiller and condenser surfaces.
2. At saturation pressure, the mean free path length of the vapor molecules must be of the same order of magnitude as the distance between the evaporator and condenser surfaces.
 
Under these ideal conditions, the remaining gas molecules evaporate without hindrance. All vapor molecules reach the condenser surface, and the evaporation rate reaches the highest possible value at this temperature. Evaporation rate is proportional to pressure, so molecular distillation yields relatively small fractions.
In short path distillation equipment for sale, the distance between the condenser and the heating surface is about 20-50mm, and when the pressure of the residual gas is 10-3mbar, the mean free path length of the residual gas molecules is about twice that of the former. Short-path stills are fully capable of meeting all the necessary conditions for molecular distillation.