Patent ID: 7365219

Claim:
A method for separating off one or more of the most highly unsaturated compound(s) from a liquid mixture additionally comprising one or more less highly unsaturated organic compound(s) and/or one or more saturated organic compound(s), comprising the steps of: (i) loading an acid cation exchanger with silver ions, (ii) mixing the acid cation exchanger with a liquid mixture, (iii) stirring in a batch method, the liquid mixture at a temperature which is below the boiling point of the solvent used, (iv) separating off a supernatant, (v) detaching from the acid cation exchanger the less highly unsaturated organic compound(s) by adding a solvent selected from the group consisting of ketones, alcohols or a mixture of such solvents, and separating off, and (vi) detaching the most highly unsaturated compound(s) from the acid cation exchanger by detaching the silver ions from the acid cation exchanger.