US 12,343,367 B1
Preservation and closed-loop processing for oil extraction of fresh plant materials
David Nahmad, Placentia, CA (US)
Assigned to Eco-Logic Environmental Engineering Inc., Placentia, CA (US)
Filed by Eco-Logic Environmental Engineering Inc., Placentia, CA (US)
Filed on Jan. 7, 2022, as Appl. No. 17/570,790.
Claims priority of provisional application 63/135,135, filed on Jan. 8, 2021.
Int. Cl. B01D 11/02 (2006.01); A01N 59/00 (2006.01); A61K 31/05 (2006.01); A61K 31/352 (2006.01); A61K 36/185 (2006.01); B01D 5/00 (2006.01); C07D 311/80 (2006.01); G01N 1/18 (2006.01)
CPC A61K 36/185 (2013.01) [A61K 31/05 (2013.01); A61K 31/352 (2013.01); B01D 5/006 (2013.01); B01D 11/0207 (2013.01); B01D 11/0219 (2013.01); B01D 11/028 (2013.01); B01D 11/0288 (2013.01); B01D 11/0296 (2013.01); A61K 2236/35 (2013.01); A61K 2236/37 (2013.01); A61K 2236/51 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of storing and processing plant materials, comprising:
providing a two-layer solvent system comprising a hydrophobic solvent and a hydrophilic solvent, wherein the hydrophilic solvent is less dense than the hydrophobic solvent:
implementing the two-layer solvent system in a storage container that contains the hydrophobic solvent as a bulk solvent and the hydrophilic solvent as a top layer solvent disposed above the hydrophobic solvent;
placing fresh plant materials in a biomass cage that is configured to allow the bulk solvent to enter into and exit from the biomass cage, and submerging the biomass cage in the bulk solvent below the top layer solvent such that the fresh plant materials are in contact with the bulk solvent;
storing the fresh plant materials in the biomass container for a time sufficient to dissolve a hydrophobic component of the plant materials to dissolve in the bulk solvent and to dissolve a hydrophilic component to dissolve in the top layer solvent;
removing at least some of the bulk solvent containing the hydrophobic component, and separating the hydrophobic component from the bulk solvent to produce recycled hydrophobic solvent; and
using the recycled hydrophobic solvent as bulk solvent.