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林产化学与工业 ›› 2004, Vol. 24 ›› Issue (S1): 65-68.

• 研究报告 • 上一篇    下一篇

磁性纳米固体超强酸的制备及合成松香甘油酯的研究

贾庆明, 王亚明, 陕绍云   

  1. 昆明理工大学 生物与化学工程学院, 云南 昆明 650224
  • 收稿日期:2003-09-04 修回日期:1900-01-01 出版日期:2004-10-20 发布日期:2004-10-20

PREPARATION OF MAGNETIC NANOMETER SOLID SUPERACID AND SYNTHESIS OF ROSIN GLYCERIDE

JIA Qing-ming, WANG Ya-ming, SHAN Shao-yun   

  1. Institute of Biological and Chemical Engineering, Kunming University of Science and Techology, Kunming 650224, China
  • Received:2003-09-04 Revised:1900-01-01 Online:2004-10-20 Published:2004-10-20

摘要: 采用溶胶-凝胶法制备了磁性纳米固体超强酸SO42-/TiO2-Fe3O4,以松香甘油酯的合成为目标反应,探讨了制备条件对SO42-/TiO2-Fe3O4催化剂酯化性能的影响。得出最佳制备条件为:Ti与Fe的摩尔比为30:1,用浓度为1.5mol/L的H2SO4浸泡,在450℃下焙烧3h。并采用IR、TEM等分析手段对该催化剂结构进行了表征,用改进的Hammett指示剂法测定了催化剂的酸强度。

关键词: 磁性, 纳米, 固体超强酸, 松香甘油酯

Abstract: The magnetic nanometer solid superacid SO42-/TiO2-Fe3O4 was prepared by sol-gel method, and its catalytic activity on reaction between rosin acid and glycerol was examined under different preparing conditions. Thus, ratio of Ti and Fe (30:1), soaking the magnetic nanometer powder in 1.5 mol/L H2SO4 and calcining at 450℃ for 3 h were the optimum preparing conditions. The structure of the catalyst was characterized by IR and TEM. Acid intensity of this catalyst was measured by improved Hammett indicator method.

Key words: magnetism, nanometer, solid super acid, rosin glyceride

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