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img width="350" src="https://www.rnplex.com/upload/C_241/file/20210715/de939de1de30b38227a9b97bc77b987a.jpg.webp">https://www.rnplex.com/products/subcritical-extractor-closed-loop-extractor-bho-extractor.htmlClosed Loop Extraction SystemsThe? Closed Loop Extraction System is the most advanced and safest system available for the production of all types of cannabis concentrates, including crushed, shredded, live resins and isolates.In a laboratory-grade environment staffed by trained technicians, closed-loop equipment always keeps flammable solvents within the system to reduce air exposure. Amateur extractors often use open flame blasting techniques, which are illegal and can lead to fatal explosions because the presence of flammable butane in the air can react with an open flame.Generally, professional light hydrocarbon (BHO) extraction begins when cannabis is placed in an extraction tube. A pressurized solvent tank passes clean, odorless, tasteless butane through the plant material to strip it of its trichomes and various cannabis compounds. Light hydrocarbons are the perfect key to unlocking and releasing all the potential cannabinoids and terpenes.These systems use pressure vessels, pharmaceutical piping, pumps and pneumatic valves to store and recover solvents for reuse. The post-extraction process completely removes residual butane from the final product.Main components of a closed-loop systemThe closed-loop system consists of three main components. They are the solvent tank, the material column and the collection base. Each system uses a combination of these three components, which are scattered with valves and different connections. Some more advanced systems may have multiple material columns, multiple solvent tanks, or a combination of all three. Some systems may even have a fourth component called a "dewaxer", which will be discussed in a later post. https://printerspost.com.au/Account/ClassifiedPreview.aspx?id=19093 For now, just remember the three main components. The first time you look at the system, try to identify the three main components first and then try to figure out the valve layout. Once you can easily identify all three components, it will be easier to understand where and how the solvent will move through the system.Chemical ProcessesSo? how does closed loop actually work? Your solvent tank will contain the solvent you need. In this example, we will use butane as the solvent. Your material column will contain the material you want. For this example, we will say it is 1 pound of freshly trimmed indoor grown Girl Scout cookies (one of my personal favorite varieties).The first step in removing the oil from our ingredients is to enter our butane solvent. We will open the solvent canister and let the butane begin to fill our column of material. As the butane comes into contact with our material, the essential oil will begin to dissolve into the butane. As our solvent works its way through the material, the essential oil continues to dissolve, leaving the butane/oil mixture behind. https://www.scoop.it/topic/closed-loop-extractor/p/4129001204/2021/12/22/how-to-consider-before-starting-your-own-lab Once the butane/oil mixture falls into the collection base, we must now separate the two. https://www.quora.com/What-is-a-closed-loop-extractor/answer/Vincen-Su?prompt_topic_bio=1 To do this, we must evaporate the butane. Since this is a "closed loop", we also need to re-collect the evaporated butane back into our solvent tank. This is accomplished by placing the collection base in warm water and placing the solvent canister in dry ice or ice water. This will create a temperature difference. The butane will begin to evaporate and escape the collection base, and the collection base will be drawn into the solvent canister through this temperature difference.The butane vapor is drawn into the cold solvent tank, so the colder you can make the solvent tank, the faster and more efficient the recovery of butane. Inside the solvent tank, the vaporized butane will recondense into a low-pressure liquid. Once all the butane has evaporated from the collection base, all that remains is the oil we extracted from the Girl Scout cookies. Our solvent tank will be full of butane, we can reuse it, and the "cycle" will be complete.