Application of Dissociation Extraction in Oxidation Degradation Reaction of Lignin
Application of Dissociation Extraction in Oxidation Degradation Reaction of Lignin
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DOI：
10.1021/ie5035418
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发表时间：
2014-11
影响因子：
4.2
通讯作者：
Shiwei Liu;Cong Zhang;Lu Li;Yu Shitao;Congxia Xie;Fusheng Liu;S. Zhanqian
中科院分区：
文献类型：
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作者：
Shiwei Liu;Cong Zhang;Lu Li;Yu Shitao;Congxia Xie;Fusheng Liu;S. Zhanqian
以木质素为原料，研究了一种利用木质素生产高附加值芳香醛的新方法。以混合磷酸盐溶液为可重复使用的介质，在反应过程中采用离解萃取的方法分离目标产物，防止了产物芳醛的氧化，提高了产率。木质素的转化率达到100%，芳香醛（香草醛、丁香醛和4-羟基苯甲醛）的总收率为25.8%。与传统的氢氧化钠水溶液溶剂相比，该工艺具有腐蚀性小、环境污染小、产物易于分离纯化、溶剂可循环使用等优点。
A novel approach was developed in order to use lignin as a renewable resource for the production of high added-value aromatic aldehydes. The mixed phosphate solution was used as a reusable medium, and the desired products were separated by the method of the dissociation extraction during the reaction, which prevented the products aromatic aldehydes from oxidizing and increased their yields. The conversion of lignin reached 100%, and the total yield of aromatic aldehydes (vanillin, syringaldehyde and 4-hydroxybenzaldehyde) was 25.8%. Compared with the traditional solvent NaOH aqueous solution, this process gave some advantages to the reaction including less corrosive and environmental problems, easy product separation and purification, and recyclability of solvent.