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US 10,239,808 B1Granted
Cannabis extracts
AssigneeCanopy Holdings, LLC
InventorsJacob Black, Ryan Beigie, Alex Mateo
Life of this patent
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Abstract
A method is provided for removing THC from raw cannabis oil.
Claims11
A method of removing one or more cannabis compounds from a cannabis oil, the method comprising:
- obtaining a column packed with a normal phase particulate, wherein the normal phase is a silica gel stationary phase particulate;
- adding cannabis oil to the packed column;
- adding a first eluent to the packed column, wherein the first eluent added totals between one and eleven column volumes (CVs), 2 to 7 CVs, or 4 to 6 CVs;
- adding a second eluent to the packed column;
- collecting at least two eluate fractions comprising one or more compounds;
- and
- evaporating solvent from at least a subset of the at least two fractions to form a composition.
4 more elements
A method for processing raw cannabis oil to provide clean cannabis oil having less than 0.3 wt % delta9-THC, the method comprising:
- obtaining raw cannabis oil;
- applying the raw cannabis oil to a normal stationary phase column;
- eluting the normal stationary phase column, to produce an eluate, with a step gradient using a binary solvent system, wherein the binary solvent system comprises a first solvent A and a second solvent B, and further wherein solvent A is petroleum ether, a heptane, or n-heptane and solvent B is diethyl ether or methyl tert butyl ether;
- fractionating the eluate into at least two eluate fractions;
- and
- evaporating solvent from at least a subset of the at least two eluate fractions to provide the clean cannabis oil comprising less than 0.3 wt % THC.
3 more elements
Dependencies are inferred from the claim text.