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Oxidation Treatments Using Hydrogen Peroxide to Convert Paper-Grade Eucalyptus Kraft Pulp into Dissolving-Grade Pulp

Molecules (Basel, Switzerland), 2023-12, Vol.28 (23), p.7927 [Peer Reviewed Journal]

COPYRIGHT 2023 MDPI AG ;2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1420-3049 ;EISSN: 1420-3049 ;DOI: 10.3390/molecules28237927 ;PMID: 38067656

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  • Title:
    Oxidation Treatments Using Hydrogen Peroxide to Convert Paper-Grade Eucalyptus Kraft Pulp into Dissolving-Grade Pulp
  • Author: Vera-Loor, Andrea ; Rigou, Panagiota ; Mortha, Gérard ; Marlin, Nathalie
  • Subjects: Aldehydes ; Cellulose ; Chemical and Process Engineering ; Chemical Sciences ; Decomposition ; dissolving pulp ; Engineering Sciences ; Hydrogen peroxide ; Lignin ; Molecular weight ; Oxidation ; Oxidation-reduction reaction ; paper grade pulp ; periodate oxidation ; Pulp industry ; Viscosity
  • Is Part Of: Molecules (Basel, Switzerland), 2023-12, Vol.28 (23), p.7927
  • Description: Converting paper-grade bleached Kraft pulp into dissolving pulp using eco-friendly chemicals on-site at the mill is a challenge for the pulp industry. In this study, two oxidation systems are evaluated: the first one is based on the use of hydrogen peroxide at various levels of alkalinity; the second one investigates the use of sodium periodate followed by hydrogen peroxide to convert aldehydes into carboxyls and enhance their hemicelluloses removal. Our results have shown that when using only peroxide, the removal of hemicelluloses was not sufficient to improve the pulp's dissolving ability. Conversely, the periodate-peroxide system proved to be more efficient. Results regarding the pulp purity, solubility, degradation (pulp viscosity and cellulose molecular mass distribution), brightness, and its potential applications were discussed.
  • Publisher: Switzerland: MDPI AG
  • Language: English
  • Identifier: ISSN: 1420-3049
    EISSN: 1420-3049
    DOI: 10.3390/molecules28237927
    PMID: 38067656
  • Source: Geneva Foundation Free Medical Journals at publisher websites
    Alma/SFX Local Collection
    PMC (PubMed Central)
    ProQuest Central
    DOAJ Directory of Open Access Journals
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