Liquid Phase Catalytic Synthesis of 2,5-Dimethyl-2,4-Hexadiene by Condensation of iso-Butyl Aldehyde with tert-Butyl Alcohol over Solid Acidic Catalysts | |
Wang H(王华) ; Sun CL(孙承林) ; Wang GW(王公慰) ; Liu ZM(刘中民) | |
2000-10-12 | |
会议名称 | 3rd asia-pacific congress on catalysis |
会议日期 | 2000-10-12 |
会议地点 | 中国 |
页码 | 702/2 |
通讯作者 | 刘中民 |
中文摘要 | several solid acidic catalysts have been investigated for the prins condensation of iso-butyl aldehyde with tert-butyl alcohol in a liquid phase reaction. the results demonstrate that acidic molecular sieves are effective catalysts for the condensation reaction, and hzsm-5 molecular sieves possessed strong enough acidity and proper channel systems exhibit high activity and selectivity. the solvent polarity and the solvent-active site interaction would significantly effect the conversion of aldehyde and the selectivity of 2,5-dimethyl-2,4-hexadiene. the iso-butyl aldehyde to tert-buoh ratio, catalyst amount, solvent amount, reaction temperature, reaction time, si/al ratio of hzsm-5 molecular sieves, catalytic performance of different solid acids, and side reactions in the system are studied. up to 78.6 % iso-butyl aldehyde conversion is obtained with a 57.8 % 2,5-dimethyl-2,4-hexadiene yield over hzsm-5 with si/al of 39 after 8 h at 160 ℃, which provides a useful and economical potential industrial application way on a large scale to manufacture 2,5-dimethyl-2,4-hexadiene. |
会议主办者 | dalian institute of chemical physics |
学科主题 | 物理化学 |
语种 | 中文 |
内容类型 | 会议论文 |
源URL | [http://159.226.238.44/handle/321008/111316] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
推荐引用方式 GB/T 7714 | Wang H,Sun CL,Wang GW,et al. Liquid Phase Catalytic Synthesis of 2,5-Dimethyl-2,4-Hexadiene by Condensation of iso-Butyl Aldehyde with tert-Butyl Alcohol over Solid Acidic Catalysts[C]. 见:3rd asia-pacific congress on catalysis. 中国. 2000-10-12. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论