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使用过氧化氢进行氧化处理将纸浆级桉木硫酸盐浆转化为溶解浆

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

作者信息

Vera-Loor Andrea, Rigou Panagiota, Mortha Gérard, Marlin Nathalie

机构信息

Laboratory of Pulp and Paper Science and Graphic Arts, University Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, LGP2, F-38000 Grenoble, France.

出版信息

Molecules. 2023 Dec 4;28(23):7927. doi: 10.3390/molecules28237927.

DOI:10.3390/molecules28237927
PMID:38067656
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10708549/
Abstract

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.

摘要

在纸厂现场使用环保化学品将纸浆级漂白硫酸盐浆转化为溶解浆对制浆行业来说是一项挑战。在本研究中，评估了两种氧化系统：第一种基于在不同碱度水平下使用过氧化氢；第二种研究了使用高碘酸钠，然后用过氧化氢将醛转化为羧基并增强半纤维素的去除。我们的结果表明，仅用过氧化物时，半纤维素的去除不足以提高纸浆的溶解能力。相反，高碘酸盐 - 过氧化物系统被证明更有效。讨论了有关纸浆纯度、溶解度、降解（纸浆粘度和纤维素分子量分布）、亮度及其潜在应用的结果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/278ad3f6b599/molecules-28-07927-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/17e00bba5823/molecules-28-07927-g0A1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/b0c5bf78a4dc/molecules-28-07927-g0A2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/fa73baf21809/molecules-28-07927-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/c4a87d8df6c5/molecules-28-07927-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/8617eeda98db/molecules-28-07927-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/a0c6a4f66b9b/molecules-28-07927-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/968041012aac/molecules-28-07927-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/e4f2addc3951/molecules-28-07927-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/070f31923cbe/molecules-28-07927-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/7a52d1378735/molecules-28-07927-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/f42ff3dc3b9b/molecules-28-07927-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/278ad3f6b599/molecules-28-07927-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/17e00bba5823/molecules-28-07927-g0A1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/b0c5bf78a4dc/molecules-28-07927-g0A2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/fa73baf21809/molecules-28-07927-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/c4a87d8df6c5/molecules-28-07927-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/8617eeda98db/molecules-28-07927-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/a0c6a4f66b9b/molecules-28-07927-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/968041012aac/molecules-28-07927-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/e4f2addc3951/molecules-28-07927-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/070f31923cbe/molecules-28-07927-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/7a52d1378735/molecules-28-07927-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/f42ff3dc3b9b/molecules-28-07927-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/18cf/10708549/278ad3f6b599/molecules-28-07927-g010.jpg

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本文引用的文献

1
Oxidation treatments to convert paper-grade Eucalyptus kraft pulp into microfibrillated cellulose.氧化处理将桉木硫酸盐浆转化为微纤化纤维素。
Carbohydr Polym. 2022 Nov 15;296:119946. doi: 10.1016/j.carbpol.2022.119946. Epub 2022 Aug 3.
2
Review: Periodate oxidation of wood polysaccharides-Modulation of hierarchies.综述：过碘酸盐氧化木材多糖——分级结构的调控。
Carbohydr Polym. 2021 Jan 15;252:117105. doi: 10.1016/j.carbpol.2020.117105. Epub 2020 Sep 19.
3
Improvement of alkali efficiency for purification of dissolving pulp by a modified cold caustic extraction process.
改进改性冷碱抽提工艺以提高溶解浆碱回收效率。
Carbohydr Polym. 2017 Dec 15;178:412-417. doi: 10.1016/j.carbpol.2017.09.085. Epub 2017 Sep 28.
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Regeneration of Aqueous Periodate Solutions by Ozone Treatment: A Sustainable Approach for Dialdehyde Cellulose Production.通过臭氧处理再生高碘酸盐溶液：一种生产二醛纤维素的可持续方法。
ChemSusChem. 2016 Apr 21;9(8):825-33. doi: 10.1002/cssc.201501639. Epub 2016 Mar 15.
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Periodate oxidation of crystalline cellulose.结晶纤维素的高碘酸盐氧化
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