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US 11,697,078 B2Granted
Hybrid extraction process for cannabinoids and related methods
AssigneeMedpharm Iowa LLC
InventorsJack McCaslin Carraher, Zach Joseph Baker
Life of this patent
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Abstract
The present invention relates to methods for treating cannabis biomass in order to isolate tetrahydrocannabinolic acid (THCA). In another aspect, the present invention relates to a process that involves purification followed by extraction of cannabis biomass to isolate and improve yields of high-purity crystalline extracts.
Claims16
A method of extracting cannabinoids/cannabinoid acids from cannabis biomass comprising:
- drying cannabis biomass to form dried biomass;
- purifying the dried biomass by exposing the dried biomass to CO2 to remove impurities and form a purified biomass;
- and extracting high purity cannabinoids/cannabinoid acids from the purified biomass with one or more liquified hydrocarbons selected from the group consisting of propane or butane, said extracting step occurring in a single vessel or closed system.
A method of extracting cannabinoids/cannabinoid acids from cannabis biomass comprising:
- drying cannabis biomass to form dried biomass;
- purifying the dried biomass by exposing the dried biomass to CO2 to remove impurities and form a purified biomass;
- and extracting high purity cannabinoids/cannabinoid acids from the purified biomass with butane or propane, said method not including a distilling step.
Dependencies are inferred from the claim text.