C - Chemistry – Metallurgy – 07 – B
Patent
C - Chemistry, Metallurgy
07
B
C07B 63/00 (2006.01) B01D 11/02 (2006.01) B01D 11/04 (2006.01) C11B 3/00 (2006.01) C11B 9/02 (2006.01)
Patent
CA 2311782
The invention concerns a method for extracting an organic molecule or a group of organic molecules from a raw material or for purifying an extract obtained by a conventional extraction method characterised in that it consists in using a solvent medium comprising at least a hydrofluoroether selected among the group consisting of methoxy-nonafluorobutane (C4F9OCH3) and its isomer ((CF3)2CFCF2OCH3), ethoxy-nonafluorobutane (C4F9OC2H5) and its isomer ((CF3)2CFCF2OC2H5) and propoxy-undecafluoropentane (C5F11OC3H7), said hydrofluoroether having a boiling point in atmospheric pressure ranging between +15 ~C and +100 ~C.
L'invention concerne un procédé pour extraire une molécule organique ou un groupe de molécules organiques à partir d'une matière première ou pour purifier un extrait obtenu par une méthode traditionnelle d'extraction caractérisé en ce qu'il met en oeuvre un milieu solvant comprenant au moins un hydrofluoroéther choisi dans le groupe constitué par le méthoxy-nonafluorobutane (C¿4?F¿9?OCH¿3?) et son isomère ((CF¿3?)¿2?CFCF¿2?OCH¿3?), l'éthoxy-nonafluorobutane (C¿4?F¿9?OC¿2?H¿5?) et son isomère ((CF¿3?)¿2?CFCF¿2?OC¿2?H¿5?), et le propoxy-undécafluoropentane (C¿5?F¿11?OC¿3?H¿7?), ledit hydrofluoroéther présentant une température d'ébullition à la pression atmosphérique comprise entre +15 ·C et +100 ·C.
Lemaire Benoit
Mengal Philippe
Mompon Bernard
Surbled Michel
Extractive
Oyen Wiggs Green & Mutala
LandOfFree
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