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How Does A Closed Loop Extractor Work?


Cannabis is a medicinal plant from which an extract containing tetrahydrocannabinol, cannabidiol and its carboxylic acids can be obtained. Common cannabis extracts include CBD and THC, the main psychoactive compounds in cannabis that stimulate specific receptors in the brain to reduce pain and inflammation. CBD and THC extracts are also available as medicines to patients suffering from various ailments. Examples include the treatment of pain, post-traumatic stress disorder, cancer, epilepsy and degenerative neuropathies.


There are various methods for making cannabis extracts. Currently, the most advanced and safest technology recognized internationally is the closed loop extractor kit, which is a closed, oxygen-free, low-pressure container. The closed-loop extractor is based on the compatibility of organic matter. Similar to the principle, molecular diffusion occurs between the extract and the extractant in the container during the soaking process, so that the fat-soluble components in cannabis are transferred to the liquid extractant, and then the extractant and the target product are separated by vacuum evaporation, and finally the extract is obtained. Extraction steps include pulverization, pulverization, residual resin, and isolate. So how does a closed loop extractor work? Below we describe how the closed-loop extractor works.

how does a closed loop extractor work

Solvent extraction preparations:


1. Pulverize the plant material: pulverize and dry the extracted part of the cannabis to obtain medicinal powder;

2. Use hydrocarbons like butane as a solvent to extract cannabinoids to obtain an extract;

3. Concentrating the extract to obtain the extract;

4. The extract is subjected to water precipitation to remove impurities to obtain water precipitation liquid;

5. Centrifuge the water precipitation, add 10-100% (V/V) ethanol to the precipitate obtained by centrifugation to dissolve, to obtain the alcohol solution of the precipitate;

6. The alcoholic solution of the precipitate is subjected to column chromatography;

7. The eluate obtained after concentration is added with ethanol to supersaturate and dissolve to obtain crystals;

8. Wash the crystals with purified water or ethanol to obtain the first product;

9. Mix the obtained primary product with purified water and dry to obtain cannabidiol.

closed loop extractor

How does a closed loop extractor work:


1. Immerse cannabis in boiling solvent.

2. Automatically lower the level and move the solvent under the extraction sleeve. During the washing process, the solvent in the condenser flows through the sample material and through the thimble to complete the extraction process.

3. Approximately 90% of the solvent used is collected in the internal recovery tank.

4. Cooling of the extraction cup contains the extract, raise the cup to prevent burning. The extraction cup containing the extract was placed in a vacuum drying oven, cooled in the vacuum drying oven and weighed to calculate the extract.


The application of closed-loop extractors represents a paradigm shift in the way producers and shoppers focus their attention. Closed-loop hydrocarbon extraction utilizes a hydrocarbon solvent (butane) to remove trichomes from the plant floor, leaving only inert plant material. The solvent is then evaporated from the resulting solution, known as "purging," leaving only the concentrated psychoactive portion of the cannabis. These steps are all done under pressure in a sealed system, and a closed-loop extraction system allows complete recovery of the solvent. After you have sunk the gauge for a while, lock all valves on the system, then close and disconnect the vacuum pump. There is a valved bypass between the coil and the feed line. A throughput system that can be used in this way is a round-robin system.

closed loop extractor

A stainless steel filter plate inside the closed loop extractor provides a great way for you to aid in filtration during the extraction process. In a vacuum oven, use a pump to depressurize the chamber. The plants are blasted under the high pressure of a vacuum pump, which leaves a sticky layer of brown or dark yellow resin, which is washed, dried and processed into the desired concentrate form. The closed-loop system must heat or cool the chemical before the solvent can extract the appropriate compound from the cannabis. Closed loop extractors are equipped with coolers and heaters to set the temperature of the solvent. Still, there are some potential risks associated with hydrocarbon mining. A closed loop extractor eliminates the problems that can arise when using hydrocarbons to extract compounds from cannabis.


Business owners in cannabis and cannabis extraction businesses understand how hydrocarbon extractors and closed-loop extractors work, making it easier for decision makers to choose equipment that matches their needs. Over time you will see the fluid slow down from the stem and the post will get hot. Once the column warms up, it depends on how you run the machine. Pre-programmed parameters for pressure and temperature can be pressure specific and work undisturbed. In addition, the absolutely automated closed-loop extraction technology can reduce downtime for manufacturers by scheduling automated cleaning processes during off-hours. Most security concerns come from individuals and small businesses that do not use professional closed-loop extractors. Closed-loop extractors have been shown to be the most effective and safest way to extract compounds from cannabis. Cannabis concentrate companies should consider the advantages of closed-loop extractors before purchasing equipment. This model has upgrades to help produce the next quality extract. The solvent enters the material column through the nozzle end cap to ensure that the entire material column is saturated with solvent.


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