Crystallization of cannabinoids
AssigneeChemtor, LP
InventorsWilliam Lanier, Michael Peter Noll, III, William David Winget
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Abstract
A method for crystallization of cannabinoids includes: providing a substantially pure cannabinoid isolate; dissolving the cannabinoid isolate in a crystallization solvent; removing solvent by evaporation until the solution reaches saturation; adding a seed crystal of said cannabinoid; maintaining a supersaturated solution throughout the recrystallization process by the continual evaporation of solvent throughout the crystallization process by incubating the solution under heat and/or vacuum and repeating this process until crystals of the desired size have been produced.
Claims10
A method of forming a cannabinoid crystal, comprising:
- (i) providing a powdered or crystalline cannabinoid isolate comprising 90 wt % or greater of a single cannabinoid;
- (ii) dissolving the isolate in a crystallization solvent in which the cannabinoid is soluble to form a solution;
- (iii) placing the solution under heat and/or vacuum until the solution reaches a saturation point to produce a saturated solution;
- (iv) adding a seed crystal to the saturated solution;
- and
- (v) placing the resulting combination under heat and vacuum until the solvent is fully evaporated, thereby producing the cannabinoid crystal.
Dependencies are inferred from the claim text.