化工学报 ›› 2005, Vol. 56 ›› Issue (2): 270-273.

• 催化、动力学与反应器 • 上一篇    下一篇

溶胶-凝胶法制备H3PW12O40/SiO2及催化合成三羟甲基丙烷三庚酸酯

方莉;李海唐;赵永祥;刘滇生   

  1. 山西大学化学化工学院,山西 太原 030006
  • 出版日期:2005-02-25 发布日期:2005-02-25

Sol-gel derived H3PW12O40/SiO2 and catalyzed synthesis of trimethylolpropane tri-heptanoate

FANG Li;LI Haitang;ZHAO Yongxiang;LIU Diansheng   

  • Online:2005-02-25 Published:2005-02-25

关键词: 溶胶-凝胶法, 磷钨酸, 酯化, 三羟甲基丙烷三庚酸酯

Abstract: H3PW12O40/SiO2(PW/SiO2) was prepared by the sol-gel method and trimethylolpropane tri-heptanoate(TMH ) was synthesized by trimethylolpropane(TMP) and heptylic acid(HA) in the presence of H3PW12O40/SiO2.The results showed that the catalyst with 50%(mass)PW had good activity and stability.The optimal esterification conditions were as follows:nTMPnHA=1∶4,2%(mass)PW/SiO2,reaction temperature 120—200 ℃ and 3 h.The structure of TMH was characterized by GC,IR,1HNMR spectra and the rate of esterification was up to 95%.

Key words: 溶胶-凝胶法, 磷钨酸, 酯化, 三羟甲基丙烷三庚酸酯