C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
C11B11/00—Recovery or refining of other fatty substances, e.g. lanolin or waxes
Procede d'enrichissement selectif en acides gras polyinsatures d'un melange contenant des acides gras fractions enrichies obtenues et compositions les contenant.