Fractionation of main components in wind-fallen and thinning woods by continuous extraction with solvents at atmospheric pressure for utilization of poor-grade woods

常压溶剂连续萃取分离风伐疏材中的主要成分,实现劣质木材的利用

基本信息

  • 批准号:
    06556026
  • 负责人:
  • 金额:
    $ 12.67万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    1994
  • 资助国家:
    日本
  • 起止时间:
    1994 至 1996
  • 项目状态:
    已结题

项目摘要

Poor-grade woods obtained from thinning, storm-fallen-down and short-rotation trees were subjected to pulpings by continuous extraction systmes with organic solvents in order to utilize valuable products. The woods from most of hardwood such as birch, poplar and beech, and from spruce and todomatsu (Abies sachalinensis Masters.) as softwood were possible to be separated into AcOH pulp, hemicellulose and lignin quantitatively by a solvent pulping system with aqueous acetic acid containing a small amount of sulfuric acid or hydrochloric acid at reflux temperatures. However, thinning woods from larch and sugi (Cryptomeria japonica D.Don) yielded PHA pulps with large amounts of residual lignin by this pulping process. The larch and sugi woods were possible to be pulped by a novel polyhydric alcohol process either with sulfuric acid at reflux temperature or with acetic acid at higher temperatures. Acetic acid and polyhydric alcohols for pulping solvents may be prepared from wood polysaccharides.AcOH pulps had satsfactory properties for paper-making. The water solubles recovered as sugars from the waste liquor consisted mainly of monosaccharides such as xylose, mannose and so forth. The sugars appear to be utilized as diet sweeteners, medicines and chemicals. AcOH lignin could be converted to carbon fibers and fibrous active carbon with good quality by use of simple and economical methods because it has the characteristic hot-melting. PHA pulps had the properties for paper-grade and dissolving pulps. Lignin was recovered in quantity from the waste liquor. Hemicelluolse obtained together with the pulping solvent may be used several times for pulpings without recovery and conversion.
对间伐、风暴倒伐和短轮伐期的劣质木材进行有机溶剂连续萃取制浆,以利用有价值的产品。木材来自大多数硬木,如桦树,白杨和山毛榉,以及云杉和todomatsu(冷杉sachalinensis大师)。由于针叶材在回流温度下用含有少量硫酸或盐酸的乙酸水溶液溶剂制浆系统可以定量地分离成AcOH浆、半纤维素和木质素。然而,从落叶松和杉(柳杉D.唐)间伐木材产生PHA纸浆与大量的残留木质素,通过这种制浆过程。落叶松和水杉木材有可能通过一种新的多元醇法制浆,无论是在回流温度下用硫酸还是在较高温度下用乙酸。木材多糖可制成醋酸和多元醇类制浆溶剂,其制浆性能较好。从废液中以糖形式回收的水溶性物质主要由单糖如木糖、甘露糖等组成。糖似乎被用作饮食甜味剂,药物和化学品。乙酸木质素具有热熔融特性,可以通过简单、经济的方法转化为高质量的碳纤维和纤维状活性炭。PHA浆具有造纸级和溶解浆的性能。从废液中大量回收木质素。与制浆溶剂一起获得的半纤维素可以多次用于制浆而无需回收和转化。

项目成果

期刊论文数量(19)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
金允根: "キタコブシ Magnolia kokus DC. var. borealis Sarg.の抽出成分(第I報)" 北大演研報. 53(1). 1-28 (1996)
Kim Yun-geun:“Magnolia kokus DC. var. borealis Sarg 的提取成分(报告 I)”北海道大学研究杂志 53(1)(1996)。
  • DOI:
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  • 影响因子:
    0
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  • 通讯作者:
S.Kubo, Y.Uraki and Y.Sano: "Thermomechnical Analysis of Isolated Lignins" Holzforshung. 50. 144-150 (1996)
S.Kubo、Y.Uraki 和 Y.Sano:“分离木质素的热机械分析”Holzforshung。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Uraki,Y.: "Preparation of Carbon Fibers from Organosolv Lignin by Aqueous Acetic Acid Pulping" Holzforschung. 49(4). 343-350 (1995)
Uraki,Y.:“通过乙酸水浆法从有机溶剂木质素制备碳纤维”Holzforschung。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Shimatanai,Y.: "Preparation of Softwood Kraft Lignin-based Cold Setting Wood Adhesives" Holzforschung. 49(4). 351-357 (1995)
Shimatanai,Y.:“基于软木牛皮纸木质素的冷固化木材粘合剂的制备”Holzforschung。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Sano,Y.: "Pulping of Birchwood at Atmospheric Pressure with Aqueous Acetic Acid containing Small Amounts of Sulfuric Acid and Phenols" Mokuzai Gakkaishi. 41(11). 1006-1011 (1995)
Sano,Y.:“在大气压下用含有少量硫酸和酚类的乙酸水溶液对桦木进行制浆”Mokuzai Gakkaishi。
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  • 影响因子:
    0
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SANO Yoshihiro其他文献

SANO Yoshihiro的其他文献

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{{ truncateString('SANO Yoshihiro', 18)}}的其他基金

Development of high sensitivity assay for oxytocin, peptide hormone, and its clinical application utilizing aptamer
适体催产素、肽类激素高灵敏度检测方法的开发及其临床应用
  • 批准号:
    23590690
  • 财政年份:
    2011
  • 资助金额:
    $ 12.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
ESTABLISHMENT OF BIOMASS CONVERSION INDUSTRY IN HOKKAIDO
北海道生物质转化产业的建立
  • 批准号:
    11793013
  • 财政年份:
    1999
  • 资助金额:
    $ 12.67万
  • 项目类别:
    Grant-in-Aid for University and Society Collaboration
DEVEPOLPMENT OF NOVEL PHAPULPING PROCESS BY ORGANIC SOLVENTS SELF-SUPPLIED FROM BIOMASS
生物质自供有机溶剂制浆新工艺的开发
  • 批准号:
    10556035
  • 财政年份:
    1998
  • 资助金额:
    $ 12.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
Three-dimentional images of deposition of microfibrils and matrix substances in the cell wall
细胞壁中微纤维和基质物质沉积的三维图像
  • 批准号:
    06404013
  • 财政年份:
    1994
  • 资助金额:
    $ 12.67万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (A)
Separation and Utilization of Woody Biomass by Boilingaqueous Acetic Acid Containing Acid Catalyst.
含酸性催化剂的沸腾乙酸水溶液分离和利用木本生物质。
  • 批准号:
    01560175
  • 财政年份:
    1989
  • 资助金额:
    $ 12.67万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
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