Application of Dissociation Extraction in Oxidation Degradation Reaction of Lignin

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• 作者：Shiwei Liu ; Cong Zhang ; Lu Li ; Shitao Yu ; Congxia Xie ; Fusheng Liu ; Zhanqian Song
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：December 10, 2014
• 年：2014
• 卷：53
• 期：49
• 页码：19370-19374
• 全文大小：226K
• ISSN：1520-5045

文摘

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.