期刊信息

  • 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
  • 主办: 河北师范大学
  • ISSN: 1000-5854
  • CN: 13-1061/N
  • 中国科技核心期刊
  • 中国期刊方阵入选期刊
  • 中国高校优秀科技期刊
  • 华北优秀期刊
  • 河北省优秀科技期刊

可膨胀石墨催化合成三乙酸甘油酯

  • 1 .石家庄学院化学系, 河北石家庄 050035;
    2.河北师范大学化学与材料科学学院, 河北石家庄 050016
  • DOI:

Synthesis of Glycerin Triacetate with Expandable Graphite as Catalyst

摘要/Abstract

摘要:

以甘油和乙酸酐为原料、可膨胀石墨为催化剂合成了三乙酸甘油酯.研究了甘油和乙酸酐的摩尔比、催化剂用量、反应时间诸因素对产率的影响.实验结果表明可膨胀石墨是合成三乙酸甘油酯的良好催化剂.最佳反应条件:n(甘油)∶n(乙酸酐)=1∶4.2,催化剂用量为反应物料总质量的1.5%,反应时间2 h,此条件下产率可达98.3%.

Abstract:

Glycerin triacetate(Ⅰ) was sy nthesized from gly cerin(Ⅱ)and acetic anhydride(Ⅲ)in the presence of expandable graphite(Ⅳ).Factors influencing the product yield were discussed and best reaction conditions were found .Experimental result showed that Ⅳ is an excellent catalyst for the synthesis of Ⅰ .With n(Ⅱ)∶n(Ⅲ)=1∶4 .2 , w (Ⅳ)=1 .5 %, and reaction time is 2 h , yield of Ⅰ can reach 98 .3 %.