CO_2流体超临界精制天然冰片的研究  

Research of supercritical CO_2 fluid refined natural borneol

作　　者：崔琳[1] 陈茜文[1] 何洪城[2] 

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004 [2]湖南省林业科学院,湖南长沙410004

出　　处：《湖南林业科技》2015年第1期40-43,共4页Hunan Forestry Science & Technology

基　　金：湖南省科学技术厅科技计划重点项目(2014WK2027)

摘　　要：以天然冰片结晶母液中的冰片残片为原料,采用CO2流体超临界法精制天然冰片。结果表明:在萃取压力11 MPa、温度40℃、CO2流量25 L/h、萃取时间20 min的工艺条件下,天然冰片的纯度和得率都较佳。经气相色谱检测结晶产品的纯度可达96.66%。With borneol fragments in the crystallized mother liquor of natural borneol as the raw materials, supereritical carbon dioxide method was adopted for refining to get high purity borneol. The result showed that the yield and purity were excellent with extraction pressure of 11 MPa, extracting temperature of 40 ℃, carbon dioxide flow rate of 25 L/h and ex- traction time of 20 minutes. After detected by gas chromatography, the purity of the crystallization products could reach 96.66 %.

关 键 词：天然冰片 超临界CO2 精制工艺 

分 类 号：R283[医药卫生—中药学]