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›› 2001, Vol. 1 ›› Issue (2): 0-0.

• 2 •    

过氧化氢异丙苯分解绿色工艺 ?I.催化剂性能

黄大刚,于士如,韩明汉,王金福,金涌   

  1. 清华大学化学工程系,北京100084
  • 出版日期:2001-04-20 发布日期:2001-04-20

Decomposition of Cumene Hydroperoxide Catalyzed by Resin Catalysts

HUANG Da-gang, YU Shi-ru, HAN Ming-han, WANG Jin-fu, JIN Yong   

  1. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Online:2001-04-20 Published:2001-04-20

摘要: 对不同类型磺酸树脂催化剂进行比较,筛选出活性较高的磺酸树脂CT–175,用于过氧化氢异丙苯(CHP)分解工艺. 湿基树脂催化剂可采用丙酮脱水, 液固比为40 ml/g时, 经80 min, 脱水率接近100%. 研究表明,机械搅拌对树脂催化剂破碎有很大的影响,因此,反应器中不宜有机械搅拌装置. 另外,树脂催化活性与其在反应过程中吸附的Na+含量有重要关系,当树脂中Na+含量达到0.03%(w)时,需要再生. 适宜的再生条件是常温、3.5%(w)硫酸水溶液,可使Na+脱除95%.

关键词: 过氧化氢异丙苯, 催化剂, 磺酸树脂, 分解

Abstract: Comparing different sulfonic resin catalysts, it was found that CT–175 has a higher activity and is suitable catalyst for the decomposition of cumene hydroperoxide. After the wet resin is dipped in acetone for more than 80 min, nearly 100% water can be removed when the ratio of acetone to resin is 40 ml/g. The main reason of resin fragmentation is mechanical stirring, so it is not suited for a reactor with a mechanical stirrer. The deactivation of resin is caused by Na+ in the resin, and the deactivated catalyst must be regenerated after the Na+ concentration is more than 3%. The optimal regeneration condition is room temperature and 3.5% (w) H2SO4 solution by which more than 95% Na+ in the resin can be removed.

Key words: cumene hydroperoxide, catalyst, sulfonic resin, decomposition

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