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日用化学工业 ›› 2021, Vol. 51 ›› Issue (3): 186-189.doi: 10.3969/j.issn.1001-1803.2021.03.003

• 开发与应用 • 上一篇    下一篇

均苯四甲酸四丁酯合成中HZSM-5分子筛催化性能研究

秦娜娣1,2(),丁建飞1,张义东1,许飞3,李茉3,许伟1,邵荣1()   

  1. 1.盐城工学院 化学化工学院,江苏 盐城 224051
    2.江苏大学 化学化工学院,江苏 镇江 212013
    3.江苏华伦化工有限公司,江苏 扬州 225266
  • 收稿日期:2020-09-07 修回日期:2021-02-25 出版日期:2021-03-22 发布日期:2021-03-23
  • 通讯作者: 邵荣
  • 作者简介:秦娜娣(1995-),女,甘肃庆阳人,硕士研究生,电话:(0515)88168892,E-mail:2457139386@qq.com
  • 基金资助:
    江苏省普通高校研究生科研创新计划项目(SJCX19-1039)

Research on the catalytic performance of HZSM-5 in the synthesis of tetrabutyl pyromellitate

QIN Na-di1,2(),DING Jian-fei1,ZHANG Yi-dong1,XU Fei3,LI Mo3,XU Wei1,SHAO Rong1()   

  1. 1. School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
    2. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
    3. Jiangsu Hualun Chemical Co., Ltd., Yangzhou, Jiangsu 225266, China
  • Received:2020-09-07 Revised:2021-02-25 Online:2021-03-22 Published:2021-03-23
  • Contact: Rong SHAO

摘要:

以HZSM-5分子筛为催化剂,均苯四甲酸二酐和正丁醇为原料合成均苯四甲酸四丁酯绿色表面活性剂,考察了一步晶化法和两步晶化法对分子筛结构和性能的影响,并对反应温度、时间、催化剂用量、醇酐摩尔比等工艺条件进行了优化。结果表明:两步晶化法制备的HZSM-5分子筛结晶度高,晶粒尺寸小且规整;较佳反应工艺条件为:反应温度220 oC,反应时间6 h,催化剂用量5%,醇酐摩尔比7∶1。在此条件下,均酐转化率达93%。

关键词: HZSM-5分子筛, 均苯四甲酸四丁酯, 增塑剂, 均苯四甲酸二酐

Abstract:

Pyromellitic dianhydride reacted with n-butanol to produce a green surfactant of tetrabutyl pyromellitate using a HZSM-5 molecular sieve catalyst. The effects of the one-step crystallization and two-step crystallization on the structure and performance of the molecular sieve were investigated. The reaction temperature, reaction time, catalyst dosage, alcohol-anhydride ratio and other process conditions were optimized. The results show that the HZSM-5 prepared by two-step crystallization has high crystallinity, small grain size and regular grain size. Under the better conditions: 220 oC reaction temperature, 6 h reaction time, 5% of the catalyst, 7∶1 of the ratio of alcohol to anhydride, the conversion of pyromellitic dianhydride was 93%.

Key words: HZSM-5 molecular sieve, tetrabutyl pyromellitate, plasticizer, pyromellitic dianhydride

中图分类号: 

  • TQ423