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林产化学与工业 ›› 2011, Vol. 31 ›› Issue (6): 1-6.

• 研究报告 •    下一篇

油酸多元醇的合成研究

李静, 蒋剑春, 徐俊明   

  1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室; 国家林业局 林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2011-02-12 修回日期:1900-01-01 出版日期:2011-12-30 发布日期:2011-12-30
  • 通讯作者: 蒋剑春,研究员,博士,博士生导师,研究领域为林产化学加工和生物质能源开发技术;E-mail:bio-energy@163.com。

Synthesis of Polyols from Oleic Acid

LI Jing, JIANG Jian-chun, XU Jun-ming   

  1. Institute of Chemical Industry of Forestry Products,CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material,Jiangsu Province, Nanjing 210042, China
  • Received:2011-02-12 Revised:1900-01-01 Online:2011-12-30 Published:2011-12-30

摘要: 以可再生资源油酸和甘油为原料,双氧水为环氧化试剂,通过环氧、开环、酯化三步法合成油酸多元醇。考察了不同环氧化和酯化条件对油酸多元醇性能的影响。采用红外光谱(IR)和气质联用(GC-MS)对中间体和产物进行了结构及成分分析。结果表明,环氧化最佳条件为油酸0.1 mol,催化剂H2SO4 0.2 g,环氧化温度 60 ℃,环氧化时间 4 h,n(油酸)∶n(乙酸)∶n(H2O2)1∶0.5∶1.5,酯化反应采用ZnO为催化剂,在反应温度 180 ℃,催化剂 0.28 g,反应时间3 h的条件下进行放大实验,油酸多元醇羟值可达到 410 mg/g,黏度 4 350 mPa·s,密度 1.036 g/cm3,含水率 0.5 %,酸值<2 mg/g。

关键词: 油酸, 多元醇, 环氧化, 酯化

Abstract: Oleic acid-based polyols were prepared through epoxidation, hydrolysis, and esterification of oleic acid and glycerin. The effects of different factors on epoxidation and esterification were discussed. The product and intermediate were analysed by IR and GC-MS. The optimum conditions were determined as follows:epoxidation temperature 60 ℃, epoxidation time 4 h, n(oleic acid)∶n(CH3COOH)∶n(H2O2)1∶0.5∶1.5, esterification temperature 180 ℃, esterification time 3 h, and 0.28 g ZnO as catalyst. The hydroxyl value of polyol from scale experiment reached 410 mg/g. The viscosity of the product was 4 350 mPa·s, density 1.036 g/cm3, moisture content 0.5 %, and acid value < 2 mg/g.

Key words: oleic acid, polyols, epoxidation, esterification

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