Natural product extraction

Details Natural product extraction Natural product extraction

B - Operations, Transporting

01

D

B01D 11/02 (2006.01)

Patent

CA 2693883

In a method for extracting products of value from animal or vegetable starting material, a solution is to be created, with which extraction is improved, with regard to both the yield and separation of natural products to be extracted, and management of the method. This is achieved in that soluble constituents are extracted from the starting material in a first extraction step, using CO2, and subsequently, in a second extraction step, other constituents are extracted with compressed hydrocarbons.

L'invention concerne un procédé servant à extraire des substances valorisables d'une substance de départ animale ou végétale. L'invention vise à améliorer l'extraction à la fois en ce qui concerne le rendement et la séparation de substances naturelles à extraire qu'en ce qui concerne la conduite du procédé. A cet effet, des constituants solubles sont extraits de la substance de départ à l'aide de CO2 lors d'une première étape d'extraction, puis d'autres constituants sont extraits à l'aide d'hydrocarbures condensés lors d'une deuxième étape d'extraction.

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