Feedback
Settings

Settings

Goto Application

1. WO2022109709 - NOVEL APPROACH TO BIOMASS DELIGNIFICATION

Submit observation
PermaLink
Publication Number WO/2022/109709
Publication Date 02.06.2022
International Application No. PCT/CA2021/000078
International Filing Date 18.08.2021
IPC
C08J 11/10 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
11Recovery or working-up of waste materials
04of polymers
10by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
C08H 7/00 2011.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
HDERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
7Lignin; Modified lignin; High-molecular-weight products derived therefrom
C08H 8/00 2010.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
HDERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
8Macromolecular compounds derived from lignocellulosic materials
C09K 3/00 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
3Materials not provided for elsewhere
D21C 1/00 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
1Pretreatment of the finely-divided materials before digesting
D21C 3/04 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3Pulping cellulose-containing materials
04with acids, acid salts, or acid anhydrides
CPC
D21C 1/02
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
1Pretreatment of the finely-divided materials before digesting
02with water or steam
D21C 3/003
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3Pulping cellulose-containing materials
003with organic compounds
D21C 3/04
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3Pulping cellulose-containing materials
04with acids, acid salts or acid anhydrides
D21C 9/163
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
10Bleaching ; ; Apparatus therefor
16with per compounds
163with peroxides
Y02E 50/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
50Technologies for the production of fuel of non-fossil origin
10Biofuels, e.g. bio-diesel
Y02E 50/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
50Technologies for the production of fuel of non-fossil origin
30Fuel from waste, e.g. synthetic alcohol or diesel
Applicants
  • SIXRING INC. [CA]/[CA]
Inventors
  • PURDY, Clay
  • WEISSENBERGER, Markus
  • PAGELS, Markus
  • WYNNYK, Kyle G.
  • DEWIT, Matthew
  • CORBETT, Andrew C.
Agents
  • PIGEON, Charles O.
Priority Data
3,100,96827.11.2020CA
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) NOVEL APPROACH TO BIOMASS DELIGNIFICATION
(FR) NOUVELLE APPROCHE DE DÉLIGNIFICATION DE BIOMASSE
Abstract
(EN) Method of delignification of plant material, said method comprising: providing said plant material comprising cellulose fibres and lignin; exposing said plant material requiring to a composition comprising: - an acid; - a capping agent; and - a peroxide; for a period of time sufficient to remove substantially all (at least 80%) of the lignin present on said plant material. Also disclosed are compositions to accomplish such delignification and processes using such.
(FR) L'invention concerne un procédé de délignification de matière végétale, ledit procédé consistant à : fournir ladite matière végétale comprenant des fibres de cellulose et de la lignine ; exposer ladite matière végétale à une composition comprenant : un acide ; un agent de coiffage ; et un peroxyde ; pendant une durée suffisante pour éliminer sensiblement tout (au moins 80 %) de la lignine présente sur ladite matière végétale. L'invention concerne également des compositions pour réaliser une telle délignification et des procédés utilisant de telles compositions.
Related patent documents
CA3128588
CA3100968
US20220170206
Latest bibliographic data on file with the International Bureau
# -