吳志平　楊國恩　

摘　要：通過氣相催化反應(yīng)，使雙戊烯合成對異丙基甲苯即對傘花烴，選擇了適宜的催化劑，探討了反應(yīng)溫度、催化劑活性組分濃度等因素對產(chǎn)物中對傘花烴含量的影響，并對催化劑的重復(fù)使用性能進行了考察，得出了適宜的工藝條件，在此條件下，產(chǎn)物中對傘花烴的含量為79.6%，通過精餾可得到高純度（97.8%）的對傘花烴.
關(guān)鍵詞：雙戊烯；對異丙基甲苯；對傘花烴；氣相催化
分類號：TQ351;TQ413.24　文獻標識碼：A
文章編號：1000-2502(2001)01-0048-03

Study of the Synthetic Technology of P-cymene from Dipentene

WU Zhi-ping（College of Industry of Central South Forestry University, Zhuzhou 412006, Hunan ,China）　
YANG Guo-en（College of Industry of Central South Forestry University, Zhuzhou 412006, Hunan ,China）　

Abstract：P-cymene is synthesized from dipentene through vapor catalysis. The suitable catalyst is found, the main factor influe ncing the content of p-cymene i n the product is investigated, the repeating usability of the catalyst is also t ested, and the optimum condition is acquired. Under this condition, the content of p -cymene in the product is 79.6% and a high purity(97.8%) of p-cymene can be ob tained through distillation.
Keywords：dipentene; p-isopropylmethylbenzene; p-cymene; vapor catalysis