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SE547465C2 - Purified lignin - Google Patents

Purified lignin

Info

Publication number
SE547465C2
SE547465C2 SE2330427A SE2330427A SE547465C2 SE 547465 C2 SE547465 C2 SE 547465C2 SE 2330427 A SE2330427 A SE 2330427A SE 2330427 A SE2330427 A SE 2330427A SE 547465 C2 SE547465 C2 SE 547465C2
Authority
SE
Sweden
Prior art keywords
lignin
purified lignin
purified
ppm
mol
Prior art date
Application number
SE2330427A
Other versions
SE2330427A1 (en
Inventor
Anders Uhlin
Anna Jensen
Dimitri Areskogh
Lasse Tolonen
Rickard Wadsborn
Original Assignee
Stora Enso Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stora Enso Oyj filed Critical Stora Enso Oyj
Priority to SE2330427A priority Critical patent/SE547465C2/en
Priority to PCT/IB2024/059617 priority patent/WO2025074258A1/en
Publication of SE2330427A1 publication Critical patent/SE2330427A1/en
Publication of SE547465C2 publication Critical patent/SE547465C2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
    • C07G1/00—Lignin; Lignin derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The present invention is directed to lignin having iron content below 5.0 ppm and a weight average molecular mass in the range of from 8200 to 15000 g/mol. The purified lignin can be further processed to end products such as carbon enriched materials.
SE2330427A 2023-10-03 2023-10-03 Purified lignin SE547465C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2330427A SE547465C2 (en) 2023-10-03 2023-10-03 Purified lignin
PCT/IB2024/059617 WO2025074258A1 (en) 2023-10-03 2024-10-02 Purified lignin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2330427A SE547465C2 (en) 2023-10-03 2023-10-03 Purified lignin

Publications (2)

Publication Number Publication Date
SE2330427A1 SE2330427A1 (en) 2025-04-04
SE547465C2 true SE547465C2 (en) 2025-09-30

Family

ID=95284269

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330427A SE547465C2 (en) 2023-10-03 2023-10-03 Purified lignin

Country Status (2)

Country Link
SE (1) SE547465C2 (en)
WO (1) WO2025074258A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160137680A1 (en) * 2014-11-19 2016-05-19 Clemson University Solvent and recovery process for lignin
WO2017095316A1 (en) * 2015-12-01 2017-06-08 Ren Fuel K2B Ab Depolymerized lignin in hydrocarbon oil
WO2018004447A1 (en) * 2016-07-01 2018-01-04 Ren Fuel K2B Ab Ultrapure kraft lignin composition
WO2020013752A1 (en) * 2018-07-12 2020-01-16 Suncarbon Ab Lignin purification

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4077490A1 (en) * 2019-12-22 2022-10-26 Sweetwater Energy, Inc. Methods of making specialized lignin and lignin products from biomass

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160137680A1 (en) * 2014-11-19 2016-05-19 Clemson University Solvent and recovery process for lignin
WO2017095316A1 (en) * 2015-12-01 2017-06-08 Ren Fuel K2B Ab Depolymerized lignin in hydrocarbon oil
WO2018004447A1 (en) * 2016-07-01 2018-01-04 Ren Fuel K2B Ab Ultrapure kraft lignin composition
WO2020013752A1 (en) * 2018-07-12 2020-01-16 Suncarbon Ab Lignin purification

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Jing, J. "Carbon Fibers with Enhanced Mechanical Properties Derived from Lignin-Based Precursors", Clemson University, 2018, Dec. *
Klett, A. S. "Purification, Fractionation, and Characterization of Lignin from Kraft Black Liquor for Use as a Renewable Biomaterial", Clemson University, 2017, Jun. *
Tindall, G. W. et al. "Fractionating and Purifying Softwood Kraft Lignin with Aqueous Renewable Solvents: Liquid-Liquid Equilibrium for the Lignin-Ethanol-Water System" In: Chem. Sus. Chem., 2020, May, Vol. 13, No. 17, pp. 4587-4594. *

Also Published As

Publication number Publication date
SE2330427A1 (en) 2025-04-04
WO2025074258A1 (en) 2025-04-10

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