高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (10): 1720.

• 研究论文 • 上一篇    下一篇

CO2的化学固定及碳酸亚烃酯的合成研究

季东锋1, 吕小兵2, 何仁2, 詹晓力1, 阳永荣1   

  1. 1. 浙江大学化工系, 杭州 310027;
    2. 大连理工大学碳资源综合利用开放实验室, 大连 116012
  • 收稿日期:2000-09-01 出版日期:2001-10-24 发布日期:2001-10-24
  • 通讯作者: 季东锋(1972年出生),博士,讲师,从事CO2的活化、催化加氢、非晶态合金催化剂新材料及有机硅化学等领域的-基础和应用研究.E-mail:jidongfeng@zjuem.zju.edu.cn E-mail:jidongfeng@zjuem.zju.edu.cn

Studies on Chemical Fixation of CO2 and Syntheses of Alkylene Carbonates

JI Dong-Feng1, LU Xiao-Bing2, HE Ren2, ZHAN Xiao-Li1, YANG Yong-Rong1   

  1. 1. Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China;
    2. Laboratory of Comprehensive Utilization for Carbonaceous Resources, Dalian University of Technology, Dalian 116012, China
  • Received:2000-09-01 Online:2001-10-24 Published:2001-10-24

摘要: 报道了氯铝酞菁(PcAlCl)与n-BuPh3PBr,n-Bu4NBr,MePh3PI和n-Bu4NI等卤代季铵盐或季盐二元催化剂对CO2与环氧丙烷制备碳酸亚烃酯的环加成反应有明显的协同催化作用,并初步探讨了其反应机理.在100℃下,PcAlCl/n-BuPh3PBr的催化活性达360mol/(mol·h),选择性达99%;而在同样条件下PcAlCl和n-BuPh3PBr单独对该反应的催化活性只有57mol/(mol·h)和90mol/(mol·h).实验结果表明,PcAlCl与n-BuPh3PBr之间可能形成了1:1型配合物,导致催化活性显著增强.

关键词: CO2, PcAlCl, 季铵盐, 季盐, 碳酸亚烃酯, 环加成

Abstract: Chemical fixation of CO2 is a research hotspot in recent years. In this paper, it is reported that PcAlCl and quaternary ammonium(or quaternary phosphonium) halides, including n-BuPh3PBr, n-Bu4NBr, MePh3PIor n-Bu4NI, have strong synergetic catalytic effects on the cycloaddition of alkylene oxides and CO2 for preparing alkylene carbonates. At the optimum temperature of 100 ℃, the binary system of n-BuPh3PBr and PcAlCl has a catalytic activity of 360 mol/(mol·h) and 99% selectivity, while the catalytic activity of PcAlCl and n-BuPh3PBr are only 57 mol/(mol·h) and 90 mol/(mol·h), respectively. It is suggested from the experimental results that 1:1 complex between PcAlCl and n-BuPh3PBr may be formed, which is the main reason for synergetic strengthening of catalytic activity of PcAlCl and n-BuPh3PBr.

Key words: CO2, Chloroaluminum phthalocyanine, Quaternary ammonium salt, Quaternary phosphonium salt, Alkylene carbonate, Cycloaddition

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