Process for the recovery of fluorinated alkanoic acids from...

Details Process for the recovery of fluorinated alkanoic acids from... Process for the recovery of fluorinated alkanoic acids from...

C - Chemistry, Metallurgy

07

C

C07C 51/47 (2006.01) B01J 41/04 (2006.01) B01J 41/20 (2006.01) B01J 47/00 (2006.01) B01J 49/00 (2006.01) C02F 1/42 (2006.01) C07C 53/21 (2006.01) C08F 6/14 (2006.01)

Patent

CA 2334105

Fluorinated emulsifying agent acids can be isolated from waste waters by initially removing fine-particulate solids and/or fractions that can be converted into solids from the waste water, preferably by precipitation, by subsequently bringing the waste water into contact with an anion exchange resin and by eluting the adsorbed emulsifying agent acids from the latter.

Pour pouvoir isoler des acides émulsifiants fluorés contenus dans de l'eau résiduaire, on élimine tout d'abord de cette dernière les solides très fins et/ou les fractions transformables en solides, de préférence par précipitation, on met ensuite en contact l'eau résiduaire avec une résine échangeuse d'anions et on élue à partir de celle-ci les acides émulsifiants adsorbés.

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