详细信息
文献类型:期刊文献
中文题名:虫白蜡制备高级烷醇混合物研究
英文题名:Preperation of Higher Fatty Alcohols from Insect Wax
作者:马李一[1] 王有琼[1] 张重权[1] 郑华[1] 甘瑾[1] 段琼芬[1]
第一作者:马李一
机构:[1]中国林业科学研究院资源昆虫研究所
年份:2007
卷号:27
期号:B10
起止页码:29-32
中文期刊名:林产化学与工业
外文期刊名:Chemistry and Industry of Forest Products
收录:CSTPCD;;Scopus;CSCD:【CSCD_E2011_2012】;
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)
语种:中文
中文关键词:虫白蜡;高级烷醇;皂化反应
外文关键词:insect wax; higher fatty alcohols; sapolificationn
分类号:TQ64;S759.72
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.
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