期刊文献+

乙二醇法提取棉秆中木质素的研究 被引量:2

Lignin in Cotton Stalk Extraction by Ethylene Glycol
下载PDF
导出
摘要 棉秆中的木质素含量约为20%。将棉秆中的木质素进行分离和利用,有望缓解棉秆的资源浪费和环境污染问题。试验采用乙二醇为溶剂提取棉秆中的木质素,考察了反应温度、反应时间、乙二醇浓度、催化剂用量等主要因素对木质素产率的影响。结果表明,提取棉秆中木质素的最佳条件为:反应温度200℃、反应时间3.0 h、乙二醇浓度80%,在此条件下木质素产率达74.6%。采用32%的硫酸作为催化剂可提高棉秆中木质素的产率,当其加入量为溶剂体积的0.50%时,木质素的产率可达80.4%。 Because of its high content of 20% in cotton stalk,the lignin in cotton stalk might be separated for utilization in order to alleviate the problem of resources waste and environment pollution.The lignin was extracted with ethylene glycol as solvent under different temperatures,time,ethylene glycol contents and catalyst amounts.The results showed that the optimal extracting condition were under 200 ℃,reaction time 3.0 h with 80% ethylene glycol,and the yield of lignin was 74.6%.The sulphuric acid of 32% as catalyst could be used to increase the yield of lignin,which reached 80.4% when the dosage was 0.50%.
出处 《湖北农业科学》 北大核心 2013年第18期4359-4362,共4页 Hubei Agricultural Sciences
基金 昌吉学院科研基金项目(2010YJZD001)
关键词 棉秆 木质素 乙二醇法 提取 cotton stalk lignin ethylene glycol extraction
  • 相关文献

参考文献11

  • 1冯伟,张利群,何龙娟,庞中伟,郭淑珍.基于循环农业的农作物秸秆资源化利用模式研究[J].安徽农业科学,2012,40(2):921-923. 被引量:28
  • 2新疆发改委.2011年新疆自治区棉花生产销售与政策建议报告[EB/OL]全球纺织网,2011.
  • 3LIGERO P,VILLAVERDE J J,VEGA A D. Delignification of Eucalyptus globulus saplings in two organosolv systems (formic and acetic acid) preliminary analysis of dissolved lignins[J].{H}Industrial Crops and Products,2008,(01):110-117.
  • 4LIU M H,HUANG J H. Removal and recovery of cationic dyes from aqueous solutions using spherical sulfonic lignin adsorbent[J].{H}Journal of Applied Polymer Science,2006,(04):2284-2291.
  • 5LORA J H,GLASSER W G. Recent industrial applications of lignin:a sustainable alternative to nonrenewable materials[J].{H}Journal of Polymers and the Environment,2002,(1-2):39-48.
  • 6RODR(I)GUEZ A,SERRANO L,MORAL A. Use of high-boiling point organic solvents for pulping oil palm empty fruit bunches[J].{H}BIORESOURCE TECHNOLOGY,2008,(06):1743-1749.
  • 7SAHIN H T. Base-catalyzed organosolv pulping of jute[J].{H}Journal of Chemical Technology and Biotechnology,2002,(12):1267-1273.
  • 8HAYASHI J,MUROYAMA K,GOMES V G. Fractal dimensions of activated carbons prepared from lignin by chemical activation[J].{H}CARBON,2002,(04):630-632.
  • 9JIM(E)NEZ L,P(E)REZ I,GARC(I)A J C. Influence of process variables in the ethanol pulping of olive tree trimmings[J].{H}BIORESOURCE TECHNOLOGY,2001,(01):63-69.
  • 10蒋挺大.木质素[M]{H}北京:化学工业出版社,2001.

二级参考文献11

共引文献27

同被引文献80

引证文献2

二级引证文献20

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部