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改进的高沸醇溶剂法分离稻草中木质素的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2010年02期
Page:
104-106
Column:
研究论文
publishdate:
2010-03-30

Article Info:/Info

Title:
Separation of lignin from rice straw by modified method of HBS
Author(s):
HUANG Lijun YE Judi XU Cheng WU Jingjing HONG Jianguo*
College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
Keywords:
rice straw high boiling solvent(HBS) lignin cellulose
Classification number :
TQ351
DOI:
10.3969/j.jssn.1000-2006.2010.02.024
Document Code:
A
Abstract:
The lignin from rice straw was separated at the temperature of 160 ℃ by the modified method of high boiling solvent (HBS). In the process, the composite catalyst of sulfuric acid and acetic acid was used and the auxiliary agent G was added. The obtained optimum technological conditions were as follows: 55 g desiccated rice straw, liquid solid ratio 6∶1, mass ratio of the auxiliary agent G to 1,4butanediol 1∶10, the dosage of sulfuric acid in the composite catalyst 4 g, heat preservation at 160 ℃ for 1 h. The yield of lignin is 16.02 %. The process advantages are relatively low temperature and less dosage of solvent.

References

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Last Update: 2010-05-14