Cannabinoid extraction process and system
AssigneeNextleaf Solutions Ltd.
InventorRyan Delmoral Ko
Life of this patent
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Abstract
Raw plant material is mixed with ethanol under pressure to extract essential elements. The resulting crude oil and ethanol with the dissolved essential elements is separated from the raw plant material and filtered to remove particulates, waxes, lipids, fats and dissolved impurities. The ethanol is then evaporated from the resulting mixture of crude oil and ethanol, and the remaining crude oil then undergoes decarboxylation and distillation to obtain the essential elements. The ethanol may be chilled before adding it to the raw plant material.
Claims20
A process for extracting cannabinoids from raw cannabis plant material comprising the steps of:
- drying raw cannabis plant material;
- grinding the raw cannabis plant material to result in ground raw cannabis plant material;
- adding ethanol to the ground raw cannabis plant material to form a mixture;
- pressurizing the mixture;
- removing solid ground raw cannabis plant material from the mixture to leave a crude oil and ethanol mixture;
- filtering the crude oil and ethanol mixture to remove unwanted components;
- evaporating ethanol from the filtered crude oil and ethanol mixture to leave crude oil;
- decarboxylating the crude oil to leave a first residue;
- subjecting the first residue to a first film wipe to remove volatile terpenes and leave a second residue;
- subjecting the second residue to a second film wipe to remove non-volatile terpenes and leave a third residue;
- and
- subjecting the third residue to a third film wipe to obtain cannabinoids.
Dependencies are inferred from the claim text.