PROCESS FOR SEPARATING HEAVY AND LIGHT COMPOUNDS BY EXTRACTION WITH A SUPERCRITICAL FLUID AND BY NANOFILTRATION

PCT No. PCT/FR95/01638 Sec. 371 Date Jun. 10, 1997 Sec. 102(e) Date Jun. 10, 1997 PCT Filed Dec. 11, 1995 PCT Pub. No. WO96/18445 PCT Pub. Date Jun. 20, 1996A process and installation for the separation of heavy and light compounds is provided. According to the process, a solid or liquid phase conta...

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Hauptverfasser:	CARLES, MAURICE, VIGNET, PAUL, PERRE, CHRISTIAN, SARRADE, STEPHANE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES APPARATUS THEREFOR CANDLES CHEMISTRY DETERGENTS 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 GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY 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 TRANSPORTING
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Zusammenfassung:	PCT No. PCT/FR95/01638 Sec. 371 Date Jun. 10, 1997 Sec. 102(e) Date Jun. 10, 1997 PCT Filed Dec. 11, 1995 PCT Pub. No. WO96/18445 PCT Pub. Date Jun. 20, 1996A process and installation for the separation of heavy and light compounds is provided. According to the process, a solid or liquid phase containing the compounds to be separated is contacted with a supercritical fluid in an extractor, after which the supercritical fluid containing compounds leaving the extractor undergo nanofiltration for recovering a permeate flow containing the light compounds and a retentate flow containing the heavy compounds. The invention has particular utility for separating fats in food stuffs such as butter or fish oil.