欢迎访问《日用化学工业（中英文）》，今天是
日用化学工业（中英文）

日用化学工业 ›› 2016, Vol. 46 ›› Issue (3): 158-161.doi: 10.13218/j.cnki.csdc.2016.03.008

• 开发与应用 • 上一篇    下一篇

植物油电化学法合成环氧化合物

田美凤,李万捷,梁镇海   

  1. 太原理工大学 化学化工学院,山西 太原 030024
  • 发布日期:2016-03-22
  • 通讯作者: 梁镇海,教授,电话:13903414089,E-mail:liangzhenhai@tyut.edu.cn。
  • 作者简介:田美凤(1989-),女,陕西榆林人,硕士研究生,E-mail:1063058281@qq.com。
  • 基金资助:
    国家自然科学基金委员会和神华集团有限责任公司联合资助项目(U1261103);国家自然科学基金资助项目(20771080

Synthesis of vegetable oil epoxides with electrochemical method

TIAN Mei-feng,LI Wan-jie,LIANG Zhen-hai   

  1. College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan,Shanxi 030024,China
  • Published:2016-03-22

PDF (PC)

389

赞

摘要： 采用电化学合成法对植物油进行环氧化合物的合成。通过L18(37)正交试验讨论了蓖麻油电化学环氧化的制备工艺条件。采用红外光谱(FT-IR)和热重分析(TG)对植物油及相应环氧化合物的结构进行了表征。实验所得优化工艺条件为:反应时间为4 h,pH=6.5,反应温度为30 ℃,通氧速率为3 cm3/s,电流密度为0.3 A/cm2,蓖麻油双键与HCOOH的摩尔比为8,催化剂(0.1 mol/L盐酸)用量为0.3 mL(相对于40 g蓖麻油),在此条件下所得环氧化蓖麻油相对环氧产率达53.7%。FT-IR分析表明,电化学反应后植物油中-C=C-消失,出现了含有-C-O-C-的新物质;TG分析表明,在一定条件下,-C-O-C-的热稳定性较-C=C-强。这表明植物油电化学法合成环氧化合物是可行的。此外,对大豆油、玉米油和花生油这3种植物油做了同样的验证。

关键词: 植物油, 电化学合成法, 环氧化, 不饱和脂肪酸

Abstract: Vegetable oil epoxides were synthesized with electrochemical method.The optimum conditions for castor oil epoxidation technology were determinated by L18(37) orthogonal test.The starting material castor oil as well as its epoxidized derivatives was characterized and compared by FT-IR and TG analysis.Experimental results showed that the optimum conditions are:reaction time,4 h;pH value,6.5;reaction temperature,30 ℃;oxygen flow rate,3 cm3/s;current density,0.3 A/cm2;molar ratio of castor oil double bonds to HCOOH,8;and catalyst (0.1 mol/L hydrochloric acid) dosage,0.3 mL.Under such conditions,the relative yield of epoxidized castor oil achieves 53.7%.The FT-IR spectra indicated that new material containing -C-O-C- group was produced accompanying with the disappearance of -C=C- group;and TG analysis indicated that the thermal stability of -C-O-C- groups is stronger than that of -C=C- groups under certain conditions.Such results suggested that synthesis of vegetable oil epoxides with electrochemical method is feasible.In addition,similar tests for using of soybean oil,corn oil and peanut oil were also done.

Key words: vegetable oil, electrochemical synthesis, epoxidation, unsaturated fatty acid

中图分类号: 

  • TQ645.1