微波辐照下α-蒎烯异构反应的研究  

STUDY ON ISOMERIZATION OF α-PINENE UNDER MICROWAVE IRRADIATION

作　　者：蔡智慧[1] 罗金岳[1] 胡志杰[1] 濮卫英[1] 

机构地区：[1]南京林业大学化学工程学院,江苏南京210037

出　　处：《林产化学与工业》2005年第B10期102-104,共3页Chemistry and Industry of Forest Products

基　　金：南京林业大学创新基金资助项目(163030058)

摘　　要：以α-蒎烯为原料探讨了在微波辐照下的异构反应,得出了影响α-蒎烯异构反应的 因素主要是微波功率、催化剂用量、反应时间以及加料方式。结果表明,以偏钛酸为催化剂,用 量为原料质量的1．7％,分两次加入,微波功率为800 W,反应时间为110min时,α-蒎烯的转 化率及莰烯的得率分别为85．5％和82．9％,与传统工艺相比催化剂用量减少约40％,反应 时间大大缩短,生产成本降低,生产能力至少增加6倍,且纯度(没有精馏)和得率比传统工艺分别提高了 2．5％,经济效益明显提高,有很好的工业化应用前景。Isomerization of α-pinene was examined by microwave irradiation. Microwave power, catalyst dosage, reaction tlme,charging method of raw material were discussed, Using turpentine as raw material, metatitanic acid as catalyst, catalyst dosage 1.7 % （charged in two portions）, microwave power 800 W, total reaction time 110 min, the resulted α-pinene transformation rate and camphene yield were 85.5 % and 82.9 % （ based on the mass of raw material） respectively. Catalyst dosage was reduced about 40 % ,reaction time was decreased a great deal. Production rate was incresed at least 6 times. Purity and yield of camphene were increased more than 2.5 % compared to traditional technique. Economic benefit was improved significantly.

关 键 词：微波 Α-蒎烯 异构反应 

分 类 号：TQ351.471[化学工程] O644.2[理学—物理化学]