Process for extracting organic composites and solutions and...

C - Chemistry – Metallurgy – 02 – F

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C02F 1/26 (2006.01) C07C 37/72 (2006.01)

Patent

CA 1322795

PRECIS DE LA DIVULGATION: L'invention concerne un procédé d'extraction de composés organiques, présents dans l'eau sous forme de solu- tions ou de suspensions, caractérisé en ce qu'on traite les- dites solutions ou suspensions par un acide carboxylique liquide à la température de traitement,et immiscible avec l'eau à 20°C, et on isole la phase organique contenant les composés extraits de la phase aqueuse. En utilisant des acides linéaires, ramifiés ou non, tels les acides n-hepta- noîque, n-octanoîque, 2-éthyl-hexanoîque. On peut ainsi, extraire quantitativement des composés aussi divers que les phénols, les amines ou les amino-acides. Ce procédé est notamment applicable à la purification d'eaux résiduaires industrielles.

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