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1. 发明授权

US5777141A Process for recovering unsaturated fatty acids and derivatives thereof 失效
标题翻译：回收不饱和脂肪酸及其衍生物的方法
公开(公告)号：US5777141A
公开(公告)日：1998-07-07
申请号：US699883
申请日：1996-08-16
申请人： Gerd Brunner , Frank Reichmann
发明人： Gerd Brunner , Frank Reichmann
IPC分类号： C07B63/00 , B01D15/08 , C07C51/47 , C07C57/07 , C07C57/12 , C07C67/56 , C11B3/10 , C11B7/00 , C11C1/00 , C11C1/08
CPC分类号： C11C1/005 , B01D15/40 , C07C51/47 , C07C67/56 , Y02P20/544
摘要： A process for the recovery of unsaturated fatty acids with at least 16 carbon atoms in the molecule or a derivative of such a fatty acid from a mixture of fatty acids and/or fatty acid derivatives by column chromatography with supercritical or liquid carbon dioxide as the mobile phase comprises using aluminum oxide, optionally pretreated with alkali, as the stationary phase. The pre-treatment of the aluminum oxide is conveniently effected by contacting the particulate aluminum oxide with an aqueous solution of an alkali metal or alkaline earth metal hydroxide, optionally supplemented with a water-miscible or water-soluble organic solvent, in the pH range of about 10 to about 13 over several hours. The unsaturated fatty acids or fatty acid derivatives produced chromatographically in this manner are suitable as valuable active agents in the fields of nutrition and medicine.
摘要翻译：一种通过使用超临界或液体二氧化碳作为流动相的柱色谱法从分子中回收具有至少16个碳原子的不饱和脂肪酸或这种脂肪酸衍生物的方法，所述方法来自脂肪酸和/或脂肪酸衍生物的混合物相包括使用氧化铝，任选地用碱预处理，作为固定相。氧化铝的预处理方便地通过使颗粒状氧化铝与碱金属或碱土金属氢氧化物的水溶液（任选地补充有水混溶性或水溶性有机溶剂）在pH范围内接触来实现约数十小时至十三日。以这种方式色谱产生的不饱和脂肪酸或脂肪酸衍生物在营养和医学领域中是有价值的活性剂。

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