化工进展

• 应用技术 • 上一篇    

环境友好型叔丁胺制备工艺技术

颜吉校,金一丰,刘志湘,王月芬   

  1. 浙江皇马化工集团有限公司,浙江 上虞 312363
  • 出版日期:2012-09-05 发布日期:2012-09-05

Environment-friendly preparation of tert-butylamine

YAN Jixiao,JIN Yifeng,LIU Zhixiang,WANG Yuefen   

  1. Zhejiang Huangma Chemical Industry Group Co. Ltd,Shangyu 312363,Zhejiang,China
  • Online:2012-09-05 Published:2012-09-05

摘要: 研究以HZP-II催化剂、异丁烯和液氨为原料,选择了直接胺化制备叔丁胺的工艺路线,考察了空速、氨烯比、压力、温度对反应转化率的影响,并对催化剂使用寿命进行了稳定性评价。实验结果表明,在反应压力5 MPa、反应温度260 ℃、异丁烯空速450 h―1、氨烯比(1.5~3.0)∶1时,反应2000 h以上,异丁烯单程转化率仍能保持10.2%,产物叔丁胺的选择性>99%。

关键词: 叔丁胺, 制备, 胺化, 催化剂

Abstract: The environment-friendly preparation process of tert-butylamine by reacting isobutene with ammonia over HZP-II catalyst was studied. The affecting factors on amination were investigated,such as space velocity,reaction temperature,ratio of ammonia to isobutene. In addition,the life of HZP-II catalyst was assessed. Under optimal conditions: reaction pressure 5MPa,reaction temperature 260 ℃,isobutene space velocity 450 h-1,mole ratio of ammonia to isobutene (1.5—3.0)∶1,reaction time more than 2000h,conversion of isobutene and selectivity of tert-butylamine could be up to 10.2% and 99% respectively.

Key words: tert-butylamine, preparation, amination, catalyst

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