B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 11/04 (2006.01) B01J 19/18 (2006.01)
Patent
CA 2495970
In a method for extracting ingredients, particularly foreign substances, from liquids or solids dispersions by using compressed extraction agents such as, for instance, supercritical or liquid carbon dioxide, the liquid or dispersion is applied as a thin film in a pressure-tight reactor and the surface of the thin film is treated with the extraction agent, particularly carbon dioxide, wherein the surface of the thin film is constantly renewed over at least a portion of the layer thickness of the thin film by mechanically acting on said liquid or dispersion.
L'invention concerne un procédé d'extraction de constituants, en particulier des impuretés, contenus dans des liquides ou dispersions de matières solides à l'aide d'agents d'extraction comprimés, tels que du dioxyde de carbone fluide ou supercritique. Selon ce procédé, le liquide ou la dispersion est répandu en couche mince dans un réacteur résistant à la pression puis la surface de cette couche mince est soumise à l'action de l'agent d'extraction, en particulier du dioxyde de carbone, la surface de cette couche mince étant constamment renouvelée sur au moins une partie de l'épaisseur de cette couche mince sous l'effet de la sollicitation mécanique du liquide ou de la dispersion.
Lack Eduard
Seidlitz Helmut
Mckay-Carey & Company
Natex Prozesstechnologie Gesmbh
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