摘要
通过虫白蜡皂化法制备高级烷醇混合物探索研究,得到虫白蜡制备高级烷醇混合物的工艺优化条件:10 g虫白蜡皂化加碱4 g,皂化温度90℃,皂化时间10 h,氯化钙加入量为碱物质的量的一半,在80℃条件下,保温搅拌2 h后,抽滤,滤饼烘干,用乙醇为抽提剂,然后再用乙醇-丙酮混合溶剂将高级烷醇粗品重结晶3次,结晶体在70℃左右干燥,可得到纯度为93%的高级烷醇混合物。
In this study policosanol was prepared from insect wax, The optimized condition is:4 g alkali was added into 10 g of wax, kept at 90℃ for 10 h for saponification, half mol of CaCl2 ( according to the amount of alkali ) was added, stirred for 2 h at 80℃, then filtered with ethanol at reduced presure and dried. The filtrate was extracted with ethanol, then recrystallized the crude policosanol from ethanol-acetone mixture for 3 times and dried at 70 ℃, to obtain policosanol of 93 % purity.
出处
《林产化学与工业》
EI
CAS
CSCD
2007年第B10期29-32,共4页
Chemistry and Industry of Forest Products
基金
国家科技支撑计划重点项目(2006BAD06B07)
国家林业局重点项目资助(2006-54)
关键词
虫白蜡
高级烷醇
皂化反应
insect wax
higher fatty alcohols
sapolificationn
作者简介
马李一(1963-),男,云南大理人,副研究员,博士,主要研究方向为林产品精细化工;E-mail:mailyi@163.com
通讯作者:段琼芬,副研究员,博士,主要从事天然产物的开发利用研究;E-mail:qiongfend@hotmail.com。