Results 1 to 10 of about 215,680 (270)

Impact of drying process on kraft lignin: lignin-water interaction mechanism study by 2D NIR correlation spectroscopy

open access: yesJournal of Materials Research and Technology, 2021
Kraft lignin, an industrially available by-product from the pulp and paper industry, has revealed enormous potential to be valorised into a wide range of chemicals and biomaterials in the last two decades.
Oihana Gordobil   +4 more
doaj   +2 more sources

Kraft Lignin: A Valuable, Sustainable Resource, Opportunities and Challenges.

open access: yesChemSusChem, 2023
Kraft lignin, a by-product from the production of pulp, is currently incinerated in the recovery boiler during the chemical recovery cycle, generating valuable bioenergy and recycling inorganic chemicals to the pulping process operation.
D. Argyropoulos   +13 more
semanticscholar   +3 more sources

Chemical Characterization of Kraft Lignin Prepared from Mixed Hardwoods. [PDF]

open access: yesMolecules, 2021
Chemical characterization of kraft lignin (KL) from mixed hardwoods (Acacia spp. from Vietnam and mixed hardwoods (mainly Quercus spp.) from Korea) was conducted for its future applications.
Mun JS, Pe JA, Mun SP.
europepmc   +2 more sources

Peroxodicarbonate as a Green Oxidizer for the Selective Degradation of Kraft Lignin into Vanillin.

open access: yesAngewandte Chemie - International Edition, 2023
Lignin, the world's largest resource of renewable aromatics, with annually roughly 50 million tons of accruing technical lignin, mainly Kraft lignin, is highly underdeveloped regarding the production of monoaromatics.
Michael Zirbes   +3 more
semanticscholar   +3 more sources

Lignin-Based Polyurethanes from Unmodified Kraft Lignin Fractionated by Sequential Precipitation [PDF]

open access: yesACS Applied Polymer Materials, 2019
Lignin-based polyurethanes were synthesized from three unmodified softwood Kraft lignin fractions as the primary hydroxyl group providers which constituted >40% of the polymeric materials.
Cai, Charles M   +3 more
core   +2 more sources

Biorefinery review: Wide-reaching products through kraft lignin

open access: yesBioResources, 2019
This review details the structure of lignin and curates information on the characteristics that this polymer must have for each specific use. Lignin is a by-product of the pulp and paper industry and the second most abundant biopolymer after cellulose ...
Iara F. Demuner   +3 more
doaj   +2 more sources

Valorisation of Lignocellulosic Wastes, the Case Study of Eucalypt Stumps Lignin as Bioadsorbent for the Removal of Cr(VI)

open access: yesMolecules, 2022
The main objective of this work was to assess Eucalyptus globulus lignin as an adsorbent and compare the results with kraft lignin, which has previously been demonstrated to be an effective adsorbent.
Ana Lourenço   +6 more
doaj   +1 more source

Laboratory Study on Influence of Blending Conditions on Chemo-Thermal Characteristics of Lignin-Modified Bitumen

open access: yesApplied Sciences, 2023
Environmental approaches in the asphalt industry have focused on utilizing waste materials as modifiers. Lignin is a high-potential bitumen modifier due to its characteristics; however, the blending process with bitumen is critical.
Ali Rezazad Gohari   +4 more
doaj   +1 more source

Reactivity of Aliphatic and Phenolic Hydroxyl Groups in Kraft Lignin towards 4,4′ MDI

open access: yesMolecules, 2021
Several efforts have been dedicated to the development of lignin-based polyurethanes (PU) in recent years. The low and heterogeneous reactivity of lignin hydroxyl groups towards diisocyanates, arising from their highly complex chemical structure, limits ...
L. Antonino   +6 more
semanticscholar   +1 more source

Photoelectrochemical conversion of lignin to hydrogen: Lignin as an electron donor

open access: yesCatalysis Communications, 2021
The effect of pH, concentration, and membrane thickness on the performance of a photoelectrochemical (PEC) cell using kraft lignin as a reactant was studied at 25 °C.
Jaelynne King, Steven S.C. Chuang
doaj   +1 more source

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