Results 1 to 10 of about 18,011,255 (215)

Kraft Process-Formation of Secoisolariciresinol Structures and Incorporation of Fatty Acids in Kraft Lignin. [PDF]

open access: yesJ Agric Food Chem, 2021
The complex chemical structure and the fact that many areas in pulping and lignin chemistry still remain unresolved are challenges associated with exploiting lignin. In this study, we address questions regarding the formation and chemical nature of the insoluble residual lignin, the presence of fatty acids in kraft lignin, and the origin of ...
Lahtinen MH   +3 more
europepmc   +6 more sources

Sisal organosolv pulp as reinforcement for cement based composites [PDF]

open access: yesMaterials Research, 2009
The present work describes non-conventional sisal (Agave sisalana) chemical (organosolv) pulp from residues of cordage as reinforcement to cement based materials.
Ana Paula Joaquim   +3 more
doaj   +4 more sources

New Agents for Kraft Process

open access: yesJAPAN TAPPI JOURNAL, 2003
The Kraft process consists of the cooking process and the bleaching process mainly. In Kraft process, the weakest point is the low of the yield of pulp in the cooking process. The kinds of quinone derivatives or polysulfide derivatives are widely used as cooking agents to improve it.“Cooking Accelerator” is the agent to accelerate the function that ...
Keigo Yoshiuchi
openaire   +3 more sources

Coconut Husk, a Lignocellulosic Biomass, as a Promising Engineering Material for Non-wood Paper Production

open access: yesJournal of Natural Fibers, 2022
Plant fiber classified as environmentally friendly material is a promising renewable engineering material rich in lignocellulose that can be employed in the pulp and paper industry as a substitution to wood which has been entailing negative environmental
Pratima Jeetah, Nausheen Jaffur
doaj   +1 more source

The Effect of the Kraft Pulping Process, Wood Species, and pH on Lignin Recovery from Black Liquor

open access: yesFibers, 2022
Lignin has shown a great potential to produce fuels, value-added chemicals, and functional materials due to its high-energy density and intrinsic aromatic-based structure.
Juliana M. Jardim   +4 more
semanticscholar   +1 more source

Oxidation process concept to produce lignin dispersants at a kraft pulp mill

open access: yesNordic Pulp & Paper Research Journal, 2022
This paper presents the concept of an alkali-O2 oxidation process for producing lignin dispersants in a feasible manner at a kraft pulp mill. The oxidation process uses O2 gas to increase the anionic charge of lignin and the final oxidised lignin can ...
A. Kalliola   +10 more
semanticscholar   +1 more source

Novel and Integrated Process for the Valorization of Kraft Lignin to Produce Lignin-Containing Vitrimers

open access: yesACS Omega, 2022
The valorization of lignin into value-added products by oxidative conversion is a widely studied strategy. However, in many cases, this approach has limited scope for integration into industrial processes. The objective of our work is to maximize overall
Ajinkya More   +4 more
semanticscholar   +1 more source

Pinion Failure Analysis of a Helical Reduction Gearbox in a Kraft Process

open access: yesApplied Sciences, 2020
This paper reports investigations related to addressing the cause of pinion teeth deformation of a helical reduction gearbox in a kraft process. The American Gear Manufacturers Association (AGMA) design methodology was employed to determine the safety ...
D. K. Pandey, Heechang Lim
semanticscholar   +1 more source

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   +1 more source

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