Process for separating a constituent/cannabinoid using a chromatographic resin
US11795130B2 · kind B2 · utility
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40Claims
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Key dates
| Filing date | Aug 3, 2021 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Aug 3, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for purification and separation of cannabinoids, such as cannabidiol and tetrahydrocannabinol, e.g., from dried hemp and cannabis leaves can use a continuous simulated moving bed process, a batch column chromatography method, or a single column, and a combination of one or more of a sequence of purification steps including: filtration, decolorization, activation or decarboxylation, dewaxing, polishing, and crystallization to separate a cannabinoid from the cannabis plant and to provide various cannabinoid products. The cannabinoid products can be used in various pharmaceutical and nutraceutical applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.