Results 91 to 100 of about 588 (182)

On the importance of oxidizable structures in bleached kraft pulps

open access: yes, 2005
After cooking, kraft pulps always contain not only residual lignin but also significant amounts of hexenuronic acid and other non-lignin structures oxidizable by permanganate under the standard kappa number determination conditions.
Sevastyanova, Olena
core  

On-Site X-ray Fluorescence Spectrometry Measurement Strategy for Assessing the Sulfonation to Improve Chemimechanical Pulping Processes. [PDF]

open access: yesACS Omega, 2022
Rahman H   +8 more
europepmc   +1 more source

Reduced dispersibility of flushable wet wipes after wet storage. [PDF]

open access: yesSci Rep, 2021
Harter T, Bernt I, Winkler S, Hirn U.
europepmc   +1 more source

Kinetic and equilibrium analysis of metal ion adsorption onto bleached and unbleached kraft pulps

open access: yes
Most metal ions have negative impacts on pulp mill operations. The concentrations of metal ions on pulp fibers and in washwaters rise significantly with increased wastewater recycling.
Yantasee, Wassana
core  

Resonance Raman spectroscopy in the analysis of residual lignin and other unsaturated structures in chemical pulps [PDF]

open access: yes, 2005
Ultraviolet resonance Raman spectroscopy (UVRRS) was applied to determine the characteristic vibrations of several monomeric and dimeric lignin model compounds.
Saariaho, Anna-Maija
core  

Selective hydrolysis of hexenuronic acid groups and its application in ECF and TCF bleaching of kraft pulps

open access: yes, 1999
During kraft pulping a major part of the 4-0-methylglucuronic acid groups of the native wood xylans are converted to 4- deoxyhex-4-enuronic acid groups (HexA).
Vuorinen, Tapani   +4 more
core  

How Lignin, Hemicellulose, and Cellulose Affect the Properties of Oxygen Versus Kraft Pulps

open access: yes, 1977
A batch of chips was subjected to an oxygen pulping and a kraft pulping system. The resulting pulp was tested in its unbleached condition. It was then bleached, tested again.
Pobanz, Jeff C.
core  

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