[EN] METHODS FOR EXTRACTION, PROCESSING, AND PURIFICATION OF A SELECTED FAMILY OF TARGET COMPOUNDS FROM CANNABIS<br/>[FR] PROCÉDÉS D'EXTRACTION, DE TRAITEMENT ET DE PURIFICATION D'UNE FAMILLE SÉLECTIONNÉE DE COMPOSÉS CIBLES À PARTIR DE CANNABIS
申请人:NECTAR HEALTH SCIENCES INC
公开号:WO2020248077A1
公开(公告)日:2020-12-17
Disclosed are methods for separating, recovering, and purifying tetrahydrocannabinolic acid (THCA) salts from an organic solvent solution comprising a mixture of cannabinoids. The methods comprise solubilizing the mixture of cannabinoids in a selected C5-C7 hydrocarbon solvent, adding thereto a selected amine to thereby precipitate a THCA-amine salt therefrom, dissolving the recovered THCA-amine salt in a selected solvent and then adding thereto a selected antisolvent to thereby recrystallize a purified THCA-amine salt therefrom. The recrystallized THCA-amine salt may be decarboxylated to form a mixture of Δ9-tetrahydrocannabinol (Δ9-THC) and amine. The Δ9-THC amine mixture may be acidified to separate the amine from Δ9-THC. The recovered Δ9-THC may be concentrated to produce a highly purified Δ9-THC. Also disclosed are THCA-amine salts produced with amines selected from groups of diamines, amino alcohols, and tertiary amines.
揭示了一种从含有大麻酸(THCA)盐的有机溶剂溶液中分离、回收和纯化THCA盐的方法。该方法包括将大麻素混合物溶解在选择的C5-C7烃类溶剂中,加入选择的胺类物质以沉淀出THCA-胺盐,将回收的THCA-胺盐溶解在选择的溶剂中,然后加入选择的抗溶剂以再结晶出纯化的THCA-胺盐。再结晶的THCA-胺盐可以脱羧生成Δ9-四氢大麻酚(Δ9-THC)和胺的混合物。Δ9-THC胺混合物可以酸化以将胺与Δ9-THC分离。回收的Δ9-THC可以浓缩以生产高度纯化的Δ9-THC。还披露了使用二胺、氨基醇和三级胺等胺类物质生产的THCA-胺盐。