摘要
通过水热法合成出Dawson结构磷钨杂多酸，并考察了其催化环己醇脱水制备环己烯的性能。结果表明：当ω（H6P2W18O62·nH2O）=4．2％（以环已醇质量计），在170～180℃反应35min，环己烯收率可达93．0％。催化剂重复使用5次后，收率仍可达到75．0％。本法是一种催化合成环己烯的简单易行的典型绿色工艺。
Phosphotungstic acid with Dawsoh structure was prepared by hydrothermal method, and it was applied in the catalytic synthesis of cyclohexene. When the mass of the catalyst used was 4. 2% of the quantity of cyclohexanol, the reaction temperature was about 170-180 ℃, and the reaction time was 35min, the yield of cyclohexene could reach more than 93.0%. The catalyst could be reused for 5 times and the yield was still above 75.0%. It was a typical simple and practical new ＂green＂ route to the synthesis of cyclohexene.
出处
《化学世界》
CAS
CSCD
北大核心
2008年第12期741-743,707,共4页
Chemical World
基金
江西省自然科学基金(0520037)
江西省教育厅科技资助项目(GJJ09597)
