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	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.

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