DISSOLVING-GRADE PULPS FROM HENEQUEN FIBER

被引：0
|
作者：
CAZAURANGMARTINEZ, MN [1 ]
PERAZASANCHEZ, SR [1 ]
CRUZRAMOS, CA [1 ]
机构：
[1] ROHM & HAAS CO,BRISTOL,PA 19007
来源：
CELLULOSE CHEMISTRY AND TECHNOLOGY | 1990年 / 24卷 / 05期
关键词：
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
A method to isolate cellulose from henequen (A. fourcroydes) fiber in high yield is presented, where the agave fiber is subjected to a prehydrolysis with dilute H2SO4 solution, followed by a hypochlorite step with NaClO, and alkaline extraction of the chlorolignins formed. The effects of concentration, time and temperature in each step are presented. The prehydrolysis stage significantly enhances subsequent steps; on the other hand, a high concentration of NaClO during the extraction degrades cellulose, even if the pH is kept to a value of 9. Under the conditions tested, purified cellulose pulp having at least 96% by weight of alpha-cellulose can be obtained.
引用
收藏
页码：629 / 638
页数：10
相关论文
共 50 条
  • [1] Dissolving-grade pulp: a sustainable source for fiber production
    Quintana, Elisabet
    Valls, Cristina
    Roncero, M. Blanca
    WOOD SCIENCE AND TECHNOLOGY, 2024, 58 (01) : 23 - 85
  • [2] Dissolving-grade pulp: a sustainable source for fiber production
    Elisabet Quintana
    Cristina Valls
    M. Blanca Roncero
    Wood Science and Technology, 2024, 58 : 23 - 85
  • [3] Behavior of different monocomponent endoglucanases on the accessibility and reactivity of dissolving-grade pulps for viscose process
    Ibarra, David
    Kopcke, Viviana
    Ek, Monica
    ENZYME AND MICROBIAL TECHNOLOGY, 2010, 47 (07) : 355 - 362
  • [4] Dissolving-grade birch pulps produced under various prehydrolysis intensities: quality, structure and applications
    Testova, Lidia
    Borrega, Marc
    Tolonen, Lasse K.
    Penttila, Paavo A.
    Serimaa, Ritva
    Larsson, Per Tomas
    Sixta, Herbert
    CELLULOSE, 2014, 21 (03) : 2007 - 2021
  • [5] Dissolving-grade birch pulps produced under various prehydrolysis intensities: quality, structure and applications
    Lidia Testova
    Marc Borrega
    Lasse K. Tolonen
    Paavo A. Penttilä
    Ritva Serimaa
    Per Tomas Larsson
    Herbert Sixta
    Cellulose, 2014, 21 : 2007 - 2021
  • [6] Dissolving-grade pulp and lyocell fibers prepared from cotton stalks
    Wang, Kaihang
    Li, Kai
    Gu, Yuchen
    Yang, Gesheng
    Yao, Xiang
    Zhang, Yaopeng
    CELLULOSE, 2025, : 2227 - 2243
  • [7] Production of dissolving grade pulps from wood and non-wood paper-grade pulps by enzymatic and chemical pretreatments
    Li, Dongfang
    Ibarra, David
    Köpcke, Viviana
    Ek, Monica
    ACS Symposium Series, 2012, 1107 : 167 - 189
  • [8] Production of Dissolving Grade Pulps from Wood and Non-Wood Paper-Grade Pulps by Enzymatic and Chemical Pretreatments
    Li, Dongfang
    Ibarra, David
    Kopcke, Viviano
    Ek, Monica
    FUNCTIONAL MATERIALS FROM RENEWABLE SOURCES, 2012, 1107 : 167 - 189
  • [9] The Influence of Cold Caustic Extraction on the Purity, Accessibility and Reactivity of Dissolving-Grade Pulp
    Dou, Xiaoli
    Tang, Yong
    CHEMISTRYSELECT, 2017, 2 (35): : 11462 - 11468
  • [10] Combination of alkaline and enzymatic treatments as a process for upgrading sisal paper-grade pulp to dissolving-grade pulp
    Ibarra, David
    Kopcke, Viviana
    Larsson, Per Tomas
    Jaaskelainen, Anna-Stiina
    Ek, Monica
    BIORESOURCE TECHNOLOGY, 2010, 101 (19) : 7416 - 7423
12345