利用C_5馏分中的环戊二烯制降冰片烯二酸酐的工艺研究  

Study on Endic Anhydride Synthesis Technology by Using Cyclopentadiene in C_5

作　　者：罗红宇[1] 刘其则[2] 沈守瑶[2] 

机构地区：[1]浙江海洋学院海洋科技学院,浙江舟山316004 [2]四川大学化学学院,四川成都610065

出　　处：《浙江海洋学院学报（自然科学版）》2001年第4期294-298,共5页Journal of Zhejiang Ocean University(Natural Science Edition)

摘　　要：通过对石油烃类裂解制乙烯过程中的副产物-C5馏分与顺酐发生Diels-Alder反应制备降冰片烯二酸酐犤1犦(以下简称降酐)的工艺条件研究,结果表明:将C5馏分原料分割成～50℃,～100℃,>100℃三种馏分,选择～100℃馏分作为洗液,>100℃馏分不经蒸馏作为反应溶剂,>100℃馏分经170℃高温解聚后作为反应原料,合成条件:顺酐:环戊二烯=1∶1.2(摩尔比),温度40℃,反应时间3h,产品收率为85%左右(以顺酐计)。本工艺所生产的降酐成本低,质量稳定,纯度高,无三废排放,对环境无污染。Endic anhydride synthesis technology of using Maleic anhydride′s Diels-Alder reaction with C5 distillation cut from Ethylene processing by-products is studied.The result shows that C5 is distilled to each section distillation cut,among which 50 ℃～100 ℃ distillation cut is for detergent,over 100 ℃ distillation cut is for solvent,over 100 ℃ distillation cut decomposed under 170 ℃ is for reaction materials.The rate of product can achieved 85 % at n(Cyclopentadiene):n(Maleic anhydride)=1.2,reaction temperature 40 ℃,reaction time 3h.Synthetic endic anhydride by means of the technology has these features as low cost,high quality,high purity and no pollution.

关 键 词：C5馏分 环戊二烯 合成 工艺 降冰片烯二酸酐 

分 类 号：TQ231.2[化学工程—有机化工]