纤维素一步法制备乙醇酸工艺优化  

Optimization of one⁃step synthesis process for glycolic acid from cellulose

作　　者：李秀峥 白富栋 孙启梅 张雷 白毓黎[1,2,3] 王鹏翔 LI Xiu-zheng;BAI Fu-dong;SUN Qi-mei;ZHANG Lei;BAI Yu-li;WANG Peng-xiang(Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co.,Ltd.,Dalian 116045,China;Sinopec Key Laboratory of Research,Development and Application of Degradable Materials and Monomers,Dalian 116045,China;Dalian Bio-based Monomer and Material Engineering Research Center,Dalian 116045,China)

机构地区：[1]中石化(大连)石油化工研究院有限公司,辽宁大连116045 [2]中国石化可降解材料及单体研发与应用重点实验室,辽宁大连116045 [3]大连市生物基单体及材料工程研究中心,辽宁大连116045

出　　处：《现代化工》2024年第S01期280-283,共4页Modern Chemical Industry

摘　　要：采用纤维素一步法制备了乙醇酸,分别考察了催化剂种类、催化剂用量、反应温度、反应时间、初始O_(2)压力对纤维素制备乙醇酸反应的影响;利用液相色谱法对产物中乙醇酸含量进行了表征。研究发现,当微晶纤维素用量为0.5 g、磷钼酸水合物催化剂用量为1.05 mmol、H2O用量为50 mL、初始O_(2)压力为0.2 MPa、反应温度为180℃、反应时间为1 h时,乙醇酸收率最高,达到47.0%。Glycolic acid is synthesized from cellulose via one⁃step method,and the synthesis process is optimized.The influences of catalyst type,catalyst dosage,reaction temperature,reaction time and initial O_(2)pressure on the synthesis of glycolic acid from cellulose are studied.The content of glycolic acid in the product is characterized by means of liquid chromatography.It is found that the yield of glycolic acid reaches 47.0%,the highest when the dosages of microcrystalline cellulose,phosphomolybdic acid hydrate catalyst and H2O are 0.5 g,1.05 mmol and 50 mL,respectively,initial O_(2)pressure is 0.2 MPa,reaction temperature is 180℃and reaction time is 1 h.

关 键 词：乙醇酸 纤维素 磷钼酸水合物 可降解 单体 合成工艺 

分 类 号：TQ225.4[化学工程—有机化工]