US 11,987,544 B2
Device and method for extraction of pure compounds
James Robert White, San Mateo, CA (US)
Assigned to APPLIED EXTRACTS INC., San Mateo, CA (US)
Filed by Applied Extracts Inc., San Mateo, CA (US)
Filed on Nov. 15, 2022, as Appl. No. 17/987,857.
Application 17/987,857 is a division of application No. 17/102,140, filed on Nov. 23, 2020, granted, now 11,814,345.
Claims priority of provisional application 62/938,801, filed on Nov. 21, 2019.
Prior Publication US 2023/0080791 A1, Mar. 16, 2023
Int. Cl. C07C 37/68 (2006.01); B01D 11/02 (2006.01); B01D 29/11 (2006.01); C07D 311/80 (2006.01)
CPC C07C 37/685 (2013.01) [B01D 11/0203 (2013.01); B01D 11/0207 (2013.01); B01D 11/028 (2013.01); B01D 11/0292 (2013.01); B01D 29/11 (2013.01); C07D 311/80 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A method for extracting substantially purified compounds from solid material, comprising acts of;
passing a solvent in a supercritical state over the solid material to form a micelle;
collecting a first fraction of a compound in a first separation chamber by lowering a temperature of the micelle to a critical point of the solvent;
collecting a second fraction by further lowering the temperature and pressure of the micelle in a second separation chamber to below the critical point of the solvent;
collecting a third fraction by further lowering the temperature of the micelle in a third separation chamber;
wherein the solid material is a decarboxylated plant material; and
wherein the decarboxylated plant material is formed by performing acts of:
freezing a plant material with liquid nitrogen to form frozen plant material;
grinding the frozen plant material to form ground plant material; and
decarboxylating the ground plant material in a vacuum oven to form the decarboxylated plant material.