高纯度长叶烯的合成  

Preparation of longifolene with high purity

作　　者：刘兵[1,2] 彭晗[2] 徐徐[2] 王石发[2] 

机构地区：[1]南京财经大学食品科学与工程学院,江苏南京210046 [2]南京林业大学化学工程学院,江苏省生物质绿色燃料与化学品重点实验室,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2015年第2期116-120,共5页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家林业公益性行业科研专项项目(201104015);国家自然科学基金项目(31170538,31470592);江苏省生物质能源与材料重点实验室开放基金项目(JSBEM2014010);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：以重质松节油为原料,采用单因素实验及正交试验对高纯度长叶烯的制备方法进行了研究。探讨了催化剂种类及用量、溶剂种类及用量、反应温度、反应时间等因素对长叶烯产品纯度的影响,确定了高纯度长叶烯的适宜工艺条件。结果表明:采用硫酸为催化剂,催化剂用量为重油原料质量的1%,乙酸溶剂与原料的体积质量比为1∶3(m L/g),反应温度为20℃,反应时间为4 h,在此条件下石竹烯转化率接近100%。The preparation method of longifolene with high purity was investigated by using heavy turpentine as the raw material with single factor experiment and orthogonal test in this paper. Influence of catalysts and their dosages,solvents and their dosages,reaction temperature,reaction time on the purity of longifolene were examined,and the optimum reaction conditions were determined as follows： sulfuric acid was selected as the catalyst,and its amount was 1%（based on the total weight of heavy turpentine）; acetic acid was used as the solvent,and the ratio of acetic acid to heavy turpentine was 1∶ 3（m L/g）,reaction temperature was 20 ℃,reaction time was 4 h. The conversion of β-caryophyllene was near to 100% at above conditions.

关 键 词：高纯度长叶烯 重质松节油 β-石竹烯 水合反应 

分 类 号：TQ351.4[化学工程]