高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (5): 496-500.

• 研究论文 • 上一篇    下一篇

乙苯氧化脱氢钨硅酸催化剂的研究

吴通好, 李霞, 杨洪茂, 王国甲, 姜玉子   

  1. 吉林大学化学系
  • 收稿日期:1988-07-04 出版日期:1990-05-24 发布日期:1990-05-24
  • 通讯作者: 吴通好
  • 基金资助:

    国家自然科学基金

Studies on the Catalysts of Silicotungstic Acid in the Oxidative Dehydrogenation of Ethylbenzene

Wu Tonghao, Li Xia, Yang Hongmao, Wang Guojia, Jiang Yuzi   

  1. Department of Chemistry, Jilm University, Changchun
  • Received:1988-07-04 Online:1990-05-24 Published:1990-05-24

摘要: 考察了钨硅酸及其盐对乙苯氧化脱氢制苯乙烯的催化行为。认为表面积碳物是活性中心,苯乙烯的收率随积碳物C/H增大而增加;载体的比表面积对活性有明显影响。还发现有苯甲酸生成,COx主要来自表面积碳物的氧化。

关键词: 乙苯氧化脱氢, 钨硅酸, 苯乙烯

Abstract: We studied the catalytic behaviour of silicotungstic acid and its salt in the oxidative dehydrogenation of ethylbenzene to styrene. The carbonaceous material formed on the surface was considered to be the active sites for the oxidative dehydrogenation of ethylbenzene; the yield of styrene increases with the increase of C/H value of carbonaceous material; the specific surface of supports has a remarkable effect on the activation of catalysts. Benzole acid was discovered in the products and the oxidation of the carbonaceous material is the major source of COx.

Key words: Oxidative dehydrogenation of ethylbenzene, Silicotungstic acid, Siyrene