高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (6): 652.

• 研究快报 • 上一篇    下一篇

异丁醛一步制甲基丙烯酸催化剂的改进

吴通好1, 于剑锋1, 杨洪茂1, 王国甲1, 姜玉子1, 迟洪盘2, 张献军2, 孙景辉2, 周建平2   

  1. 1. 吉林大学化学系;
    2. 齐鲁石油化学工业公司
  • 收稿日期:1989-12-31 出版日期:1990-06-24 发布日期:1990-06-24
  • 通讯作者: 吴通好
  • 基金资助:

    国家自然科学基金

The Improvement of Catalyst of Synthesizing Methacrylic Acid by One-step Oxidation of Isobutylaldchyde

Wu Tonghao1, Yu Jianfeng1, Yang Hongmao1, Wang Goujia1, Jiang Yuzi1, Chi Hongpan2, Zhang Xianjun2, Sun Jinghui2, Zhou Jianping2   

  1. 1. Department of Chemistry, Jilin University, Changchun;
    2. The Research Institute, Qilu Petrochemistry Industry Company, Zibe
  • Received:1989-12-31 Online:1990-06-24 Published:1990-06-24

摘要: 以丙烯羰基合成丁辛醇的副产物异丁醛(IBD)为原料制甲基丙烯酸(MAA)是最经济的工艺路线。我们在异丁酸氧化脱氢制MAA杂多酸催化剂研究的基础上曾开展了IBD一步氧化制MAA的研究,得到IBD转化率100%,MAA单收63%,甲基丙烯醛(MAL)单收10%的结果[1,2]。本文进一步改进了催化剂,取得了新的进展。

关键词: 异丁醛氧化, 杂多酸, 甲基丙烯酸

Abstract: Vibration frequency of the bridge oxygen of heteropoly molybdophosphoric acid has an obvious impact on the oxygen-insertion reaction. In order to improve its catalytic activity, the substitution of As for Pin the catalyst was tried. The results show that the catalyst with compositions P1.13As0.2 · Mo12V0.25Sb0.25Cu0.25K1.5Ox has a higher catalytic activity and that a better stability last 600 hours ex-perimentally. The yields of methacrylic acid and methacrolein are 71% and 11. 5% in single-pass reaction, respectively, and the conversion of isobutylaldehylde is 100%. Compared with the results obtained before, the yield of methacrylic acid was raised.

Key words: Oxidation of isobutylaldehyde, Heteropoly acid, Methacrylic acid

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