with the use of indifferent gases or vapours, e.g. steam

Full Title

Refining fats or fatty oils > by distillation > with the use of indifferent gases or vapours, e.g. steam

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES

Subclass:

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