| 摘要 |
<p>This invention relates to a novel urea fractionation process for purification of e.g. fatty acids and derivatives thereof. The process is characterised in that the urea complexation takes place under heterogenous conditions using a solvent or solvent mixture wherein the fatty acids (or derivatives) are only slighty soluble, thus forming a two-phase system. This allows for continued regeneration of urea and simple procedures for product isolation.</p> |
