高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (7): 635.

• 论文 • 上一篇    下一篇

甲基丙烯醛与H4PMo11V1/SiO2催化剂相互作用的红外光谱研究

吴通好, 杨洪茂, 王国甲   

  1. 吉林大学化学系
  • 收稿日期:1986-03-15 出版日期:1987-07-24 发布日期:1987-07-24

Infrared Study on Interaction Between Methacrolein and Catalyst H4PMo11V1O40/SiO2

Wu Tonghao, Yang Hongmao, Want Guojia   

  1. Deportment of Chemistry, Jilin University, Changchun
  • Received:1986-03-15 Online:1987-07-24 Published:1987-07-24

摘要: 本文报告了甲基丙烯醛(MAL)在杂多酸催化剂H4PMo11V1/SiO3上吸附的红外光谱研究结果。在表面上生成了三种表面络合物,CH2=C(CH3)-CHO(Ⅰ)、CH2=C(CH3)-(这里有图片198707-635-2.gif)。认为它们是生成甲基丙烯酸(MAA)的中间物。发现在较高温度(300℃)抽空处理的催化剂上不发生MAL的化学吸附,同时表征杂多酸阴离子结构的υ(P-O)和一个υ(Me-O-Me,Me代表Mo或V)谱带也消失了。

Abstract: In this paper, we reported the result of infrared study about methacrolein (MAL) adsorption on heteropoly acid catalyst, H4PMo11V1O40/SiO2.The three surface species CH2=C(CH3)-CHO(Ⅰ), CH2=C(CH3)-CO (Ⅱ) and(这里有图片198707-639-3.gif)(Ⅲ) were formed on the catalyst surface. We considerthat they are the intermediate compounds of methacrylic acid (MAA) to form. It was found that at 300℃ MAL chemisorption did not occur on the catalyst under the evacuating condition. VP-Oand VMe-O-Mebands, characterizing the heteropoly acid anion structure, disappeared.

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