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How to make 95%+ CBD ?

CBD (Cannabidiol) is a compound that has a variety of medical applications with many health benefits, like relief from pain and anxiety and depression, as well as help with cancer-related symptoms. Now it becomes the new star of health, wellness and beauty industries, demand for cbd is increasing. How to make CBD ? This compound can be found and extracted from the plant cannabis or hemp.

Below is a full flow of cbd extraction step by step. And Distillation is a key module because only high purity oil is what we need to produce cbd related products.

There are many ways to extract CBD from the biomass, the most common way is to use a solvent (ethanol for example) to extract the botanical compound, and then recover the solvent to get a crude oil. To isolate the individual compound (CBD being one of them), the crude oil needs to be distilled after extraction. After distillation module, you will get 95%+ CBD/THC.

We offer 2 methods to refine the cbd extract, one is molecular distillation, and the other is called short path distillation.

What is Molecular Distillation?

Molecular distillation (Molecular Wiped Film Distillation) is a special kind of liquid - liquid separation technology, which relies on the difference of the average free path of molecular movement of different substances to achieve separation.

Material is delivered from a feed flask into a columniform evaporation section, getting heating, on the outside, (circulating hot fluid jacket type), and a slotted wiper mechanism forcing liquid around and downward in a thin film on the inside.

principle diagram of the molecular distillation

What is Short Path Distillation?

Short Path Distillation works in much the same way as (vacuum) steam distillation in that the extract is heated and each compound is then separated because each one has a different boiling point. By heating the distillation flask uniformly and by vacuum pumping, the evaporation flask is brought into a negative pressure state, the boiling point of the solution is reduced, and the evaporation speed is accelerated. 

It is especially suitable for the separation and purification of temperature sensitive materials and those compounds that have been thermally decomposed, oxidized or polymerized before the boiling point is reached during atmospheric distillation. 

With short path distillation, we could get purity 90%+ CBD.

In the center of the body is a wiped film evaporator with internal cooling condenser, providing a short path for vapor molecules traveling from the heated surface to the condenser surface. For cannabinoids, the internal condenser fluid must be kept elevated (~80°C) to prevent high viscosity or freeze up cbd distillate and the related components. During the itinerary downward, lighter (lower boiling point) fractions of the liquid begin to vaporize, move to the internal condenser and condense, falling down as a liquid into a vessel that catches and separates the distilled liquid (cannabinoid) which flows into a receiver flask. Heavier residue material (chlorophyll, salts, sugars, heavy wax fractions) does not evaporate and instead travels through the still body and flows into a different receiver flask.

Lab1st Turnkey Solution: From Crude Oil to High Purity Oil

Molecular distillation equipment or short path distillation equipment is very efficient for hemp oil/CBD distillation. At Lab1st, we offer you different model of Wiped Film Molecular Distillation Unit for dab, shatter, hemp, and other forms. From lab scale to production scale, we have turnkey solution for you.

Customer Cases Display

Glass Wiped Film Distillation Unit - GMD Series

General Features​

  • Various feeding rate: 1-2kg/h, 1.5-3kg/h, 2.5-5kg/h, 3.5-7kg/h

  • All Borosilicate 3.3 glass design for a perfect view on the separation process.

  • The very low operating pressure ensure very low distillation temperature and therefore a very gentle distillation is possible. 

  • Turnkey package which is plug-and-play, technical supports available.

  • upgradable for continuous distillation process.                                                                                                    

Hybrid Wiped Film Distillation Unit - HMD Series

 General Features​

  • Various size options for different feeding rate: 2.5-5kg/h, 3.5-7kg/h

  • Unique design, a perfect combination of durability and clarity.

  • High quality Borosilicate 3.3 glass for easy monitoring of the entire process.

  • Continuous feeding/discharging with gear dosing pumps.

  • Optional dual or triple stage system        

  • Engineer on-site service is available (contact us about the charge rate). 

Stainless Steel Wiped Film Distillation Unit - Pilot Scale

General Features​

  • Different feeding rate: 3.5-7kg/h, 10-20kg/h, 18-36kg/h

  • Stainless steel heats up much faster than glassware, which doubled the processing rate compared to the same size glassware wiped film evaporator system. 

  • Turnkey package which is plug-and-play.   

  • All components are made of stainless steel 316L, ensuring superior durability compared to glass units.  

  • Engineer on-site service is available (contact us about the charge rate).     

Industrial Scale Wiped Film Distillation Unit

  General Features​

  • Larger throughput, up to 200kg/hr.

  • SS316L design, durable in use.

  • Fully jacketed design and efficient filter net.

  • Short residence time and uniform heating

  • Automatic and continuous distillation process.

  • Engineer on-site service is available (contact us about the charge rate).     

Short Path Distillaiton Kit - SPD Series

General Features​

  • Various Size Option: 2L, 5L, 10L, 20L

  • Heating mantle with magnetic stirring function, available in 110V or 220V.

  • Vacuum-jacketed distillation adapter, with 3-6 vigreux stages.

  • Flexible choice of vacuum pumps and heater/chillers.

  • GCT-01 cold trap protects the vacuum pump from contamination and damage of vapors.

Lab1st is specializing in the manufacturing and sales of extraction and distillation equipment of high-quality oil from plant based biomass from lab scale to production scale. We are dedicated to be a turnkey solution provider for plant oil extraction and distillation equipment.

All our products are customizable. Any questions about cbd distillation system please fill out the form below to contact us.

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Sales@lab1st.com 

+1-844-452-2178 (USA) / +86-21-54705866(Shanghai)

Labfirst Scientific and Industrial Equipment Co., Ltd

22732 Granite Way, Suite A, Laguna Hills, CA 92653

Building#3, NO.399 DuHui Road, MinHang District, Shanghai China

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