US 12,215,077 B2
Methods of depolymerizing lignin
Shannon Stahl, Madison, WI (US); and Hao Luo, Decatur, IL (US)
Assigned to Wisconsin Alumni Research Foundation, Madison, WI (US)
Appl. No. 17/436,202
Filed by Wisconsin Alumni Research Foundation, Madison, WI (US)
PCT Filed Mar. 6, 2020, PCT No. PCT/US2020/021336
§ 371(c)(1), (2) Date Sep. 3, 2021,
PCT Pub. No. WO2020/181171, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/814,503, filed on Mar. 6, 2019.
Prior Publication US 2022/0127217 A1, Apr. 28, 2022
Int. Cl. C07C 51/31 (2006.01); B01J 31/18 (2006.01); B01J 35/56 (2024.01); C07C 45/59 (2006.01)
CPC C07C 51/313 (2013.01) [B01J 31/183 (2013.01); B01J 35/56 (2024.01); C07C 45/59 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A method of depolymerizing lignin, the method comprising reacting in a liquid solvent lignocellulosic biomass and an oxidation catalyst with the solvent being in contact with gas comprising O2 gas, wherein the lignocellulosic biomass comprises the lignin and at least one of cellulose and hemicellulose.