高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (6): 954.

• 研究快报 • 上一篇    下一篇

MCM-48掺杂铬对催化活性的影响

魏长平1, 蔡强2, 刘延1, 甄开吉1, 毕颖丽1, 庞文琴2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 吉林大学无机合成与材料制备化学开放实验室, 长春 130023
  • 收稿日期:1999-01-21 出版日期:1999-06-24 发布日期:1999-06-24
  • 通讯作者: 魏长平,女,37岁,博士研究生
  • 作者简介:魏长平,女,37岁,博士研究生
  • 基金资助:

    国家自然科学基金(批准号:29571011,29873018);吉林省科学技术委员会资助

Influence of Cr Content on Catalytic Oxidation Active in MCM-48 Catalyst

WEI Chang-Ping1, CAI Qiang2, LIU Yan1, ZHEN Kai-Ji1, BI Ying-Li1, PANG Wen-Qin2   

  1. 1. Department of Chemistry, Jilin University;
    2. Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130023
  • Received:1999-01-21 Online:1999-06-24 Published:1999-06-24

摘要: 中介孔分子筛MCM-48因其具有三维螺旋孔道结构,且孔径均匀,长程周期性良好及骨架结构稳定等特征而有可能成为有应用前景的工业催化剂[1~11].纯硅MCM-48分子筛因无酸性,催化活性极低.

关键词: Cr-MCM-48分子筛催化剂, &alpha, -十八碳酸, &alpha, -二十碳酸, 催化氧化

Abstract: Aseries of MCM-48 contained chromium mesoporous molecular sieve, prepared by hydrothermal crystallization and characterized by IR, Py-IR, XRD and TG-DTA, were used to catalyze the oxidation of octadecanol and eicosanol to the corresponding acid. The evaluation of the catalytic properties indicated that Cr content affected the catalytic oxidation activity. The catalyst with 5%Cr gave the highest yield of α-octadecanoic acid and eicosanic acid. Depending on the amount Lewis acid sites in the samples, the reaction products were monitored by using IR technique, and the obtained results were consistent with that of chemical analysis.

Key words: Cr-MCM-48 molecular sieve catalyst, Octadecanoic acid, Eicosanoic acid, Catalytic oxidation

中图分类号: 

TrendMD: