高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (2): 244.

• 研究论文 • 上一篇    下一篇

异丁烯在Mo-Te氧化物催化剂上的脉冲反应研究

王国甲, 吴通好, 嵇玉书, 杨洪茂, 姜玉子, 于雷, 厉廷有   

  1. 吉林大学化学系, 长春 130023
  • 收稿日期:1992-04-14 修回日期:1992-09-30 出版日期:1993-02-24 发布日期:1993-02-24
  • 通讯作者: 王国甲
  • 基金资助:

    国家自然科学基金

Studies on Pulse Reaction of Isobutene on Mo-Te Oxide Catalyst

WANG Guo-Jia, WU Tong-Hao, JI Yu-Shu, YANG Hong-Mao, JIANG Yu-Zi, YU Lei, LI Ting-You   

  1. Department of Chemistry, Jilin Unavrsity, Changchun, 130023
  • Received:1992-04-14 Revised:1992-09-30 Online:1993-02-24 Published:1993-02-24

摘要: 用IR和XRD法研究了Mo-Te氧化物催化剂结构与组成的关系。结果表明,该催化剂由MoO3和Te2MoO7组成,后者随Te加入量的增加而增加。考察了异丁烯在该催化剂上的脉冲反应活性,发现异丁烯转化率和甲基丙烯醛的选择性与Te2MoO7组分有关,反应可能包含两种不同的氧物种。

关键词: Mo-Te氧化物, 异丁烯, 催化氧化

Abstract: The relationship between the structure and component of the Mo-Te oxide catalyst was studied by means of IRand XRD.The results indicate that the catalyst is composed of MoO3 and Te2MoO7, and the amount of the former decreases and that of the latter increases with the increase of added amount of Te component.The examination of the activity of pulse isobutene oxidation on this catalyst shows that there exists some relationship between the conversion of isobutene or the selectivity of methacrolein and Te2MoO7 component respectively.The curve of conversion of isobutene vs.number of pulses appeared a fold.It show that there is different mechanism of isobutene reaction with catalyst before and after the fold point.It seems that two kinds of oxygen species are involved in this reaction.

Key words: Mo-Te oxide, Isobutene, Catalytic oxidation

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