MULTI-STEP SEPARATION PROCESS

The present invention provides a chromatographic separation process for recovering a polyunsaturated fatty acid (PUFA) product from a feed mixture, which comprises:(a) purifying the feed mixture in a first chromatographic separation step using as eluent a mixture of water and a first organic solvent...

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Bibliographische Detailangaben
Hauptverfasser:	MORRISON, Angus, KELLIHER, Adam
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENTS EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKINGOILS ESSENTIAL OILS FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS,OILS, OR FATTY ACIDS OBTAINED THEREFROM FATTY ACIDS FROM FATS, OILS OR WAXES FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS HUMAN NECESSITIES METALLURGY PERFORMING OPERATIONS PERFUMES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS SEPARATION THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention provides a chromatographic separation process for recovering a polyunsaturated fatty acid (PUFA) product from a feed mixture, which comprises:(a) purifying the feed mixture in a first chromatographic separation step using as eluent a mixture of water and a first organic solvent, to obtain an intermediate product; and(b) purifying the intermediate product in a second chromatographic separation step using as eluent a mixture of water and a second organic solvent, to obtain the PUFA product,wherein the second organic solvent is different from the first organic solvent, andwherein the first chromatographic separation step comprises introducing the feed mixture into a stationary bed chromatography apparatus and the second chromatographic separation step comprises introducing the intermediate product into a simulated or actual moving bed chromatography apparatus.