摘要
研究了脱铝超稳Y沸石催化环己醇脱水制环己烯的反应 ,考察了催化剂硅铝比、催化剂用量、反应物配比、反应温度和反应时间对脱水反应的影响。结果表明 :在催化剂硅铝比为 1 0 99,催化剂用量为环已醇质量的 7 5% ,油浴温度为 1 80～ 1 90℃ ,反应 1h ,环已烯产率达 87 8% ,催化剂可重复使用。
Preparation of cyclohexene by dehydration of cyclohexanol on dealuminated USY was studied.The influences of silica/alumina in the catalyst,catalyst amount,reaction temperature and time on the reaction were investigated.The most suitable conditions for the reaction were as follows:molar ratio of SiO 2/Al 2O 3 in catalyst 10.99,mass ratio of catalyst to cyclohexanol 7 5%,reaction temperature(oil bath) 180-190 ℃,reaction time 1 h.The yield was up to 87 8%,and the catalyst was reusable.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2000年第5期287-289,共3页
Fine Chemicals
基金
湖南省自然科学基金!资助项目 ( 94 -2 0 9-1 5)
关键词
环已烯
环已醇
脱铝
超稳Y沸石
催化
脱水
cyclohexene
cyclohexanol
dealuminated USY
catalysis
dehydration Foundation item:Granted by the natural science fund of Hunan province(94-209-15)
