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
C11B1/00—Production of fats or fatty oils from raw materials
C11B1/10—Production of fats or fatty oils from raw materials by extracting
C11B1/102—Production of fats or fatty oils from raw materials by extracting in counter-current; utilisation of an equipment wherein the material is conveyed by a screw