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US 11,027,218 B2Granted
Purification and separation techniques for cannabinoids
AssigneeCanopy Growth Corporation
InventorsKurt Aron Levy, Karl Enmark
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Abstract
This disclosure relates to techniques and methods to isolate and purify cannabinoids, such as CBDV, CBD, CBC, THCV, THC, CBN, CBG, CBDA, THCA, or CBGA. Evaporation and sonicating techniques are used to isolate and purify cannabinoids, such as CBDV, CBD, CBC, THCV, THC, CBN, CBG, CBDA, THCA, or CBGA. The resulting compounds find further use within the devices and compositions described herein as well as for preparative and analytical methods.
Claims8
A method of purifying one or more cannabinoids from a plant material of genus cannabis, comprising:
- adding the plant material of genus cannabis to ethanol;
- sonicating the ethanol and plant material of genus cannabis at a temperature of between about −80 to 30 degrees Celsius;
- dissolving cannabinoids in the ethanol to create a solution of cannabinoids;
- physically separating the plant material of genus cannabis from the solution comprising cannabinoids;
- and
- evaporating the ethanol from the solution at a pressure of less than 1 atmosphere.
3 more elements
Dependencies are inferred from the claim text.