logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11225756 B1

PDFFull Text
Date of Patent:
Jan. 18, 2022

Filed:

Apr. 07, 2017

Method for producing low molecular weight aromatic lignin-derived compounds

Applicant:

Cmblu Projekt Ag, Alzenau, DE;

Inventors:

Nastaran Krawczyk, Gießen, DE;

Alexander Moeller, Gießen, DE;

Peter Geigle, Alzenau, DE;

Assignee:

CMBLU PROJEKT AG, Alzenau, DE;

Attorney:

Harness Dickey & Pierce P.L.C.

Primary Examiner:

Anthony Calandra

Int. Cl.
CPC ...
D21C 11/00 (2006.01); C08H 8/00 (2010.01); E05F 5/12 (2006.01); C10G 27/00 (2006.01); C10G 1/08 (2006.01); C10G 1/00 (2006.01); E05F 3/22 (2006.01); C10G 15/08 (2006.01); C10G 29/00 (2006.01); C10G 3/00 (2006.01); C07G 1/00 (2011.01); D21H 11/04 (2006.01); D21H 11/06 (2006.01); D21H 17/12 (2006.01); D21H 17/00 (2006.01); C07C 303/06 (2006.01); C07C 309/43 (2006.01); C07C 309/46 (2006.01); H01M 8/18 (2006.01); B01D 61/02 (2006.01); B01D 61/14 (2006.01); D21D 5/18 (2006.01); C07C 303/44 (2006.01);
U.S. Cl.
CPC ...
D21C 11/0007 (2013.01); C07C 303/06 (2013.01); C07C 309/43 (2013.01); C07C 309/46 (2013.01); C07G 1/00 (2013.01); C08H 8/00 (2013.01); C10G 1/00 (2013.01); C10G 1/08 (2013.01); C10G 3/42 (2013.01); C10G 15/08 (2013.01); C10G 27/00 (2013.01); C10G 29/00 (2013.01); D21C 11/0042 (2013.01); D21C 11/0057 (2013.01); D21H 11/04 (2013.01); D21H 11/06 (2013.01); D21H 17/12 (2013.01); D21H 17/74 (2013.01); E05F 3/223 (2013.01); E05F 5/12 (2013.01); H01M 8/188 (2013.01); B01D 61/027 (2013.01); B01D 61/145 (2013.01); B01D 2257/70 (2013.01); C07C 303/44 (2013.01); C07C 2602/10 (2017.05); C07C 2603/24 (2017.05); C07C 2603/26 (2017.05); C10G 2300/1011 (2013.01); C10G 2300/1014 (2013.01); C10G 2400/30 (2013.01); D21D 5/18 (2013.01); E05F 2003/228 (2013.01); E05Y 2201/638 (2013.01); H01M 2300/0011 (2013.01);
Abstract

The present invention relates to a method for producing one or more low molecular weight aromatic lignin-derived compounds. The method preferably comprises providing lignocellulosic material, subjecting the lignocellulosic material to a pulping process, separating pulp to provide a substantially pulp-free process stream comprising a modified lignin-derived component, isolating the modified lignin-derived component, subjecting the isolated modified lignin-derived component to a decomposition step comprising oxidative cracking (cracking and oxidizing) or reducing under the influence of a catalyst or electro-oxidation, and subjecting the resulting products to an isolation step, to provide a low molecular weight aromatic lignin-derived compound. Said compound may be further modified, e.g. by annulation. The inventive method preferably comprises further oxidizing said compound to a redox active compound. Additionally, the present invention relates to compounds obtainable by the inventive method and to an assembly for carrying out the inventive method. Furthermore, the present invention refers to a method for providing an existing pulp and/or paper manufacturing plant with said assembly.

Find Patent Forward Citations

Loading…