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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O2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O2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%。
Abstract
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 O2 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 O2 pressure is 0.2 MPa,reaction temperature is 180℃ and reaction time is 1 h.
关键词
乙醇酸
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合成工艺
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单体
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可降解
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磷钼酸水合物
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纤维素
Key words
glycolic acid
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synthetic process
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monomer
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degradable
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phosphomolybdic acid hydrate
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cellulose
Author summay
李秀峥(1990-),女,硕士,助理研究员,研究方向为生物基材料及单体研发,lixiuzheng.fshy@sinopec.com;白富栋(1981-),男,博士,高级工程师,研究方向为生物基材料及单体研发,通讯联系人,baifudong.fshy@sinopec.com。
纤维素一步法制备乙醇酸工艺优化[J].
现代化工, 2024, 44(S1): 280-283 DOI:10.16606/j.cnki.issn0253-4320.2024.S1.051
