Conversion of veratrole and sodium lignosulfonate in the sub- and supercritical water

被引：0
作者：
A. G. Khudoshin
V. V. Lunin
V. I. Bogdan
机构：
[1] Moscow State University,Faculty of Chemistry
[2] Russian Academy of Sciences,Zelinsky Institute of Organic Chemistry
来源：
Russian Journal of Physical Chemistry B | 2011年 / 5卷
关键词：
sub- and supercritical water; hydrolysis; sodium lignosulfonate; veratrole;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The conversion of veratrole and sodium lignosulfonate (SLS) in sub-and supercritical water at temperatures of 200–430°C, pressure of 220 atm, and residence time in the reactor of 2.5–10 min is studied. The soluble products of SLS depolymerization are analyzed by HPLC and GC-MS. Thermogravimetric, elemental, IR, and 1H NMR analyses of the insoluble products of the conversion of SLS in supercritical water (SCW) are performed. It is demonstrated that the methoxyaryl ether bonds and aromatic structures do not undergo destruction in SCW. The formation of the insoluble precipitate is explained by decarboxylation and desulfonation of lignin polymer fragments.
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页码：1069 / 1075
页数：6
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