Solvent extraction process

Details Solvent extraction process Solvent extraction process

B - Operations, Transporting

01

D

B01D 11/02 (2006.01) A01N 63/00 (2006.01) C07D 305/14 (2006.01) C07D 491/044 (2006.01) C07D 499/18 (2006.01) C07H 19/01 (2006.01)

Patent

CA 2185422

A process for extracting a compound or composition of matter from a raw material containing that compound or composition as a constituent part is described. The process comprises the steps of (1) contacting a sample of the raw material with an extraction solvent comprising a C1-4 (hydro)fluorocarbon and a co-solvent, and (2) separating the solvent liquor thus obtained containing the extract from the raw material. The process may be used to extract natural products, such as flavoured or aromatic oils, and biologically active compounds, such as pesticides and pharmaceuticals.

L'invention concerne un procédé qui permet d'extraire un composé ou une composition d'éléments d'une matière première contenant notamment ce composé ou cette composition. Il consiste à mettre un échantillon de la matière première en contact avec un solvant d'extraction comprenant un (hydro)fluorocarbone C¿1-4? et un co-solvant, puis à séparer la liqueur de solvant ainsi obtenue qui contient l'extrait provenant de la matière première. On peut utiliser ce procédé pour extraire des produits naturels, tels que des huiles aromatisées ou aromatiques et des composés actifs sur le plan biologique, tels que des pesticides et des substances pharmaceutiques.

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