New perfluoroalkanesulfonamide salts useful as complexing agents for polyvalent cations
Référence
85466-01
Mots-clés
Water, Filtration, Treatment, Extraction, Centrifugation, Sulfamide
Statut des brevets
French patent application FR0214334 filed on November 15th, 2002 entitled: « Nouveaux agents complexants »
Inventeurs
Hubert BLANCOU
Franck GUILLEN
Statut commercial
Research agreement, exclusive or non exclusive licenses
Laboratoire
Interactions moléculaires et réactivité chimique et photochimique (IMRCP), Toulouse, France, http://imrcp.ups-tlse.fr/
Description
TECHNICAL DESCRIPTION
The invention concerns compounds of formula RfSO2NH<->Y<+>, wherein: R1 represents a C7-C9 perfluoroalkyl group and Y<+> a cation, their preparation method and their use as complex-forming agents as well as a method for recovering polyvalent cations using said complex-forming agents.
BENEFITS
Perfluoroalkanesulfonamide salts form insoluble complexes with polyvalent cations in neutr al aqueous media.
INDUSTRIAL APPLICATIONS
Perfluoroalkanesulfonamide salts are useful as complexing agents for polyvalent cations, especially for water treatment to remove heavy metals.
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