US 11,724,977 B2
Processes for solvent extraction of cannabinoids, terpenes and flavonoids from biomass
Mark G. Tegen, Seattle, WA (US); Joon Cho, Tumwater, WA (US); and William Rusty Sutterlin, Tuscaloosa, AL (US)
Assigned to SOCATI TECHNOLOGIES—OREGON, LLC, Austin, TX (US)
Filed by SOCATI TECHNOLOGIES—OREGON, LLC, Austin, TX (US)
Filed on Mar. 16, 2021, as Appl. No. 17/203,636.
Application 17/203,636 is a continuation of application No. 16/538,487, filed on Aug. 12, 2019, granted, now 10,961,174.
Application 16/538,487 is a continuation of application No. 16/447,853, filed on Jun. 20, 2019, granted, now 10,414,709, issued on Sep. 16, 2019.
Application 16/447,853 is a continuation in part of application No. 16/259,616, filed on Jan. 28, 2019, granted, now 10,413,845, issued on Sep. 16, 2019.
Claims priority of provisional application 62/781,958, filed on Dec. 19, 2018.
Claims priority of provisional application 62/779,862, filed on Dec. 14, 2018.
Prior Publication US 2021/0238117 A1, Aug. 5, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C07C 37/68 (2006.01); B01D 11/02 (2006.01); C07C 37/00 (2006.01)
CPC C07C 37/685 (2013.01) [B01D 11/0288 (2013.01); C07C 37/004 (2013.01); C07C 2601/14 (2017.05); C07C 2601/16 (2017.05)] 24 Claims
 
1. A method of producing a winterized, isolated cannabidiol the method comprising the steps of:
a) isolating a trichome from cannabis;
b) extracting the trichome of the cannabis using a first solvent selected from the group consisting of limonene, myrcene, pinene, humulene, geraniol, perillyl alcohol, terpineol, and mixtures thereof to produce a first extract of the trichome of the cannabis consisting essentially of cannabidiol;
wherein the limonene, myrcene, pinene, humulene, geraniol, perillyl alcohol and terpineol used for extraction are not derived from the trichome of the cannabis;
c) distilling the first extract of the trichome of the cannabis in (b) consisting essentially of the cannabidiol to produce a first isolate the cannabidiol;
d) extracting the first isolate of the cannabidiol using a second solvent selected from the group consisting of 1,4 dioxane, chloroform, dichloromethane, diethyl ether, acetone, benzene, toluene, xylene, ethyl acetate, propyl acetate, butyl acetate, tetrahydrofuran, tetrahydropyran, hexane, pentane, heptane, and mixtures thereof to produce a second isolate of the cannabidiol; and
e) winterizing the distilled, second isolate of the cannabidiol of (d) to produce a winterized, isolated cannabidiol.