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林产化学与工业

林产化学与工业 ›› 2013, Vol. 33 ›› Issue (1): 69-73.doi: 10.3969/j.issn.0253-2417.2013.01.013

• 1研究报告 • 上一篇    下一篇

莰烯酯化制乙酸异龙脑酯催化剂失活机理及再生方法的研究

屈艳艳, 郑辉东, 邹文虎, 王莹淑, 吴燕翔   

  1. 福州大学 化学化工学院, 福建 福州 350108
  • 收稿日期:2012-03-04 修回日期:1900-01-01 出版日期:2013-02-28 发布日期:2013-02-28
  • 通讯作者: 郑辉东,硕士生,主要从事萃取分离、吸附分离、液膜分离等方面的研究;E-mail:youngman@fzu.edu.cn。

The Deactivation Mechanism and Regeneration Methods of Resin Catalyst for the Esterification of Camphene

QU Yan-yan, ZHENG Hui-dong, ZOU Wen-hu, WANG Ying-shu, WU Yan-xiang   

  1. College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
  • Received:2012-03-04 Revised:1900-01-01 Online:2013-02-28 Published:2013-02-28

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摘要： 通过BET、FT-IR、元素分析、SEM、N2低温吸附、离子交换容量测定等表征手段对莰烯酯化制备乙酸异龙脑酯固定床催化剂(CT800)失活机理及再生方法进行了研究。结果表明,催化剂活性降低的主要原因是反应过程中生成的聚合物对催化剂活性中心的覆盖造成的。通过乙醇浸取的方法对失活催化剂再生后,其酯化反应的活性接近新鲜催化剂水平,是一种较好的再生手段。

关键词: 莰烯, 酯化, 阳离子交换树脂, 失活机理, 再生方法

Abstract: Cation exchange resin as catalyst for the preparation of isobornyl acetate by the esterification of camphene is widely used in industry. However this type of catalyst is easy to lose its activity during the reaction. In this paper, the deactivation mechanism and regeneration method of the catalyst (CT800) were investigated. It showed that the deactivation of catalyst was mainly caused by the overlay of polymer byproducts on the resin activity centers. The deactivated catalyst can be regenerated by washing with ethanol. The activity of the regenerated catalyst is close to that of fresh one. This proves that this generation method is effective.

Key words: camphene, esterification, cation exchang resin, deactivation mechanism, regeneration method

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