高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (8): 1164.

• 论文 • 上一篇    下一篇

稀土水滑石催化合成邻苯二甲酸二戊酯的研究

李连生1, 马淑杰1, 惠建斌1, 刘新生1, 徐如人1, 包玉敏2   

  1. 1. 吉林大学化学系, 长春, 130023;
    2. 内蒙古民族师范学院化学系
  • 收稿日期:1994-11-17 修回日期:1995-01-20 出版日期:1995-08-24 发布日期:1995-08-24
  • 通讯作者: 李连生,男,52岁,副教授.
  • 作者简介:李连生,男,52岁,副教授.
  • 基金资助:

    国家自然科学基金

Studies on the Synthesis of Dipentyl Phthalate Using Hydrotalcite-Containing Rare Earth as a Catalyst

LI Lian-Sheng1, MA Shu-Jie1, HUI Jian-Bin1, LIU Xin-Sheng1, XU Ru-Ren1, BAO Yu-Min2   

  1. 1. Department of Chemistry, Jilin Universtity, Changchun, 130023;
    2. Department of Chemistry, Inner Mongolia Nationalities Teacher' s College
  • Received:1994-11-17 Revised:1995-01-20 Online:1995-08-24 Published:1995-08-24

PDF (PC)

被引次数

63

摘要： 以含镧水滑石作催化剂较详细地研究了邻苯二甲酸二戊酯的合成反应。结果表明:该催化剂具有很高的催化活性,邻苯二甲酸酐的转化率可达95%.分析了催化剂的化学组成范围,并测定了催化剂的表面积及其表面酸性。

关键词: 水滑石, 稀土, 催化剂

Abstract: Synthesis of dipentyl phthalate using hydrotalcite-containing rare earth as a catalyst is studied in detail,involved influence of amount of the catalyst,mole ratio of phthalic anhydride to n-pentanol,reaction temperature and time on the conversion of phthalic anhydride to dipentyl phthalate. The results show that the catalyst has a high catalytic activity and high selectivity,and the conversion is up to 95%.La content in the catalyst may change in a certain range and the conversion of phthalic anhydride increases with increasing of La content.The surface area of the catalyst calcined at 400℃ is about 120m2/g (BET/N2technique). It has Lewis and Bronsted acid sites and the amount of Lewis acid is far more than that of Bronsted acid.The mole ratio of chemical composition of the catalyst is Mg:Al:La=6:(2-x):x, where 0≤x≤1.0.

Key words: Hydrotalcite, Rare earth, Catalyst

TrendMD: