石油化工2011，Vol.40Issue(5)：511-515,5.
极性溶剂中微量环戊二烯的二聚反应
Dimerization of Cyclopentadiene with Low Concentration in Polar-Solvents
张荣娟 1包宗宏 1张展鹏1
作者信息
- 1. 南京工业大学化学化工学院,江苏南京210009
- 折叠
摘要
Abstract
Dimerization of low concentration cyclopentadiene ( CPD) in polar solvents of N-dimethylformamide (DMF), Af-methyl-pyrrolidone (NMP) or acetonitrile (CAN) was studied. The effects of reaction temperature, reaction time and CPD initial concentration in the solution on the dimerization in the polar solvents were investigated. The experimental results were compared with the reference data about normal concentration CPD dimerization in nonpolar C5 solvent. The results showed that the polar solvents was in favor of the dimeriation of CPD. DMF with moderate polarity and simple structure could significantly promote the dimerization, on the contrary, the effect of CAN with the smallest polarity is the weakest. In the initial reaction stage, both the CPD conversion and the dicyclopentadiene yield in the three polar solvents separately increased with the prolongation of reaction time, the rise of reaction temperature and the increase of CPD initial concentration. Between 105℃ and 125℃, the dimerization of CPD with low concentration was in equilibrium in the reaction 4 hours.关键词
环戊二烯/二聚反应/双环戊二烯/溶剂效应/碳五馏分:极性溶剂Key words
cyclopentadiene/ dimerization reaction/ dicyclopentadiene/ solvent effect/ C5 fraction/ polar solvent分类
化学化工引用本文复制引用
张荣娟,包宗宏,张展鹏..极性溶剂中微量环戊二烯的二聚反应[J].石油化工,2011,40(5):511-515,5.
