C_9芳烃溶剂油的制备

The Preparation of Aromatic Solvent Oil

以沸程为140～196℃乙烯副产C9馏分为原料,探讨了自由基聚合和Lewis酸为催化剂的催化聚合两段聚合法,制备C9芳烃溶剂油的工艺条件,以及白土精制C9芳烃溶剂油的精制条件。结果表明:采用自由基和阳离子催化两段聚合,在引发剂用量为0.01%、催化剂为1.5%、反应时间4.5 h(自由基聚合1.0 h,催化聚合3.5 h)、反应温度60℃的条件下,C9芳烃溶剂油的收率可达到70%以上;在白土用量为4%、精制时间为30 min、精制温度为50℃的精制条件下,精制后C9芳烃溶剂油的色度较佳。

Preparation of C9 aromatic solvent oil and its purification with clay were studied.The C9 fraction from ethylene production with the boiling point range of 140～196℃ was used as the starting material and free radical polymerization and Lewis acid catalytic polymerization were applied.Results showed that under optimum conditions the solvent oil was obtained in over 70% yield with the best whiteness value.