The separation of free fatty acids from triglycerides is performed by an adsorptive chromatographic process in liquid phase with silica gel as the adsorbent. A ketone, having from 3 to 8 carbon atoms, such as 2-heptanone, an ester or an ether can be selected as the desorbent....http://www.google.com.au/patents/US5179219?utm_source=gb-gplus-sharePatent US5179219 - Process for separating fatty acids and triglycerides
