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1. (WO2019060986) CANNABINOID EXTRACTION PROCESS USING BRINE
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Pub. No.: WO/2019/060986 International Application No.: PCT/CA2018/051096
Publication Date: 04.04.2019 International Filing Date: 07.09.2018
IPC:
A61K 36/185 (2006.01) ,A61K 31/05 (2006.01) ,A61K 31/352 (2006.01) ,B01D 11/02 (2006.01) ,C07C 39/23 (2006.01) ,C07D 311/80 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
36
Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
18
Magnoliophyta (angiosperms)
185
Magnoliopsida (dicotyledons)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
045
Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
05
Phenols
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
335
having oxygen as the only ring hetero atom, e.g. fungichromin
35
having six-membered rings with one oxygen as the only ring hetero atom
352
condensed with carbocyclic rings, e.g. cannabinols, methantheline
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
11
Solvent extraction
02
of solids
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
39
Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
23
polycyclic, containing six-membered aromatic rings and other rings, with unsaturation outside the aromatic rings
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
311
Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
02
ortho- or peri-condensed with carbocyclic rings or ring systems
78
Ring systems having three or more relevant rings
80
Dibenzopyrans; Hydrogenated dibenzopyrans
Applicants:
NEXTLEAF SOLUTIONS LTD [CA/CA]; 3-68 Schooner St Coquitlam, British Columbia V3K 7B1, CA
Inventors:
KO, Ryan Delmoral; CA
HUGHES, Brock; CA
PAL, Krupal Devendra; CA
SAMUELSSON, Alexzander; CA
Agent:
LOVELAND, Damien Gerard; CA
Priority Data:
15/721,34429.09.2017US
15/993,45730.05.2018US
16/112,03324.08.2018US
62/675,62023.05.2018US
62/676,26124.05.2018US
Title (EN) CANNABINOID EXTRACTION PROCESS USING BRINE
(FR) PROCÉDÉ D'EXTRACTION DE CANNABINOÏDES UTILISANT DE LA SAUMURE
Abstract:
(EN) Raw cannabis plant material is mixed with ethanol and spun-dry to extract cannabinoids. The ethanol may be chilled before adding it to the raw cannabis plant material, and a non-polar solvent stage may be used to increase the yield of the extraction. The resulting crude oil and ethanol with the dissolved cannabinoids is separated from the raw cannabis plant material and filtered to remove particulates, waxes, lipids, fats and dissolved impurities. The ethanol is then evaporated from the resulting mixture of oil and ethanol, and the remaining oil then undergoes brine- washing, decarboxylation and distillation to obtain the cannabinoids and other desirable volatile phytochemicals.
(FR) Selon l'invention, de la matière première végétale de cannabis est mélangée avec de l'éthanol et séchée par centrifugation pour extraire des cannabinoïdes. L'éthanol peut être réfrigéré avant de l'ajouter à la matière première végétale de cannabis et un étape avec du solvant non polaire peut être utilisée pour augmenter le rendement de l'extraction. L'huile brute et l'éthanol ainsi obtenus dans lesquels les cannabinoïdes sont dissous sont séparés de la matière première végétale de cannabis et filtrés pour éliminer les matières particulaires, les cires, les lipides, les graisses et les impuretés dissoutes. L'éthanol est ensuite évaporé du mélange ainsi obtenu d'huile et d'éthanol et l'huile restante subit ensuite un lavage à la saumure, une décarboxylation et une distillation pour obtenir les cannabinoïdes et d'autres produits phytochimiques volatils souhaitables.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)