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%。
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.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2012年第9期2107-2109,共3页
Chemical Industry and Engineering Progress
关键词
叔丁胺
制备
胺化
催化剂
tert-butylamine
preparation
amination
catalyst
