Qualitative Structural Characterization of Two Lignin Samples and Quantitative Determination of Hydroxyl and Methoxyl Functional Groups in Kraft Lignin via Acetylation [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2017 In this research, two types of lignin, i.e. one extracted from industrial waste water of the Iran wood and paper (choka) factory as black liquor and another provided from Aldrich company, were studied.
Mehdi Abdolahi +3 more
doaj +1 more source
Kraft Lignin Conversion into Energy Carriers under the Action of Electromagnetic Radiation
Journal of Chemistry, 2019 In this work, it was found that the deposition of iron salts (iron acetate) on kraft lignin at extremely low concentrations of 0.1 wt.% leads to a sharp increase in the absorbing capacity of microwave radiation by kraft lignin at its power of 1 kW and ...
P. Zharova +4 more
doaj +1 more source
An innovative new application for waste phenolic compounds: use of Kraft lignin and naphthols in leather tanning [PDF]
, 2005 Degradation of Kraft lignin by using hemin and hydrogen peroxide was investigated to produce phenolic compounds. The degradation products were identified using spectroscopic methods and gas chromatography–mass spectrometry (GC–MS).
Phillips, P.S. +3 more
core +1 more source
Catalytic Conversion of Lignin Model Compound and Kraft Lignin over Reduced Ru/C Catalyst [PDF]
, 2023 Catalytic conversion of lignin into valuable liquid products has been a promising approach. Herein, we reported the catalytic conversion of the lignin model compound and Kraft lignin over reduced Ru/C catalyst with different industrial organic solvents ...
Garbarino G. +6 more
core +1 more source
Revista Árvore, 2003 Neste estudo foram avaliados os efeitos do conteúdo e da natureza da lignina residual na eficiência e na seletividade do branqueamento com ozônio de polpa kraft convencional (kraft) e pré-deslignificada com oxigênio (kraft-O).
Elenice Pereira Maia +1 more
doaj +1 more source
Tailor-made alkaliphilic and thermostable fungal laccases for industrial wood processing
Biotechnology for Biofuels and Bioproducts, 2022 Background During the kraft process to obtain cellulosic pulp from wood, most of the lignin is removed by high-temperature alkaline cooking, released in the black liquors and usually incinerated for energy. However, kraft lignins are a valuable source of
David Rodríguez-Escribano +11 more
doaj +1 more source
Preparation and Characterization of Lignin Polyols from the Residues of Oil Palm Empty Fruit Bunch
BioResources, 2015 In this work, lignin polyols were prepared from the liquefaction of kraft lignin and from the direct liquefaction of Elaeis guineensis lignocellulosic waste. The liquefaction reaction was performed with polyhydric alcohols using sulfuric acid as catalyst
Abbas Hasan Faris +4 more
doaj +1 more source
New Structures in Eucalyptus Kraft Lignin with Complex Mechanistic Implications [PDF]
, 2020 Recent years have seen the development of technically feasible methods to retrieve kraft lignin from the black liquor as solids or liquids. This opens enormous opportunities to position kraft lignin as a renewable aromatic polymer precursor. However, the
Giummarella, Nicola, +3 more
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Hydrothermal Liquefaction of Kraft Lignin - The influence of capping agents and residence time [Elektronisk resurs] [PDF]
, 2021 In the context of exploring alternatives to replace fossil resources, lignin has been acknowledged as a renewable source of various aromatic compounds that have the potential of being precursors to chemicals as well as fuel additives.
Ahlbom, Anders,
core
Assessment strategy for bacterial lignin depolymerization : Kraft lignin and synthetic lignin bioconversion with Pseudomonas putida [PDF]
, 2021 In order to better understand bacterial depolymerization of lignin, a new analytical approach was proposed using Pseudomonas putida KT2440 as delignifying bacterium and Escherichia coli as non-delignifying control.
Majira, A. +14 more
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