CRCU

Chemical Research in Chinese Universities ›› 1987, Vol. 3 ›› Issue (2): 78-84.

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Infrared Study on Interaction Between Methacrolein and Catalyst H4PMo11V1O40/SiO2

Wu Tonghao, Yang Hongmao, Wang Guojia   

  1. Department of Chemistry, Jilin University, Changchun
  • Received:1986-12-03 Online:1987-12-24 Published:2011-09-07

Abstract: In this paper,we report the results of an infrared study on methacrolein (MAL) adsorption on heteropoly acid catalyst,H4-PMO11V1O40/SiO2 Three surface species,CH2=C(CH3)-CHO*(I),CH2=C(CH3)-CO(II) and CH2=C(CH3) were formed on the catalyst surface.We consider that they are the intermediates to form methacrylic acid (MAA).It was found that at 300℃ MALchemisorption did not occur on the catalyst surface treated with evacuation and vP-O and vMe-O-Me bands characterizing the heteropoly acid anion structure disappeared (Me: Mo or V)