Method for treating halogen ion cotamination in effluents
Référence
03488-01
Mots-clés
Statut des brevets
French patent application FR0403389 filed on March 31st 2004 entitled « Agent de contraste pour l’imagerie par résonance magnétique »
Inventeurs
Alexander SOROKIN
Statut commercial
Exclusive or non-exclusive licenses
Laboratoire
Institut de Recherches sur la Catalyse et l’Environnement de Lyon (IRCELYON) – UMR5256, France, http://www.ircelyon.univ-lyon1.fr
Description
CONTEXT
Halogenated compounds (X), and especially fluorides, are widely used in various areas. The high stability of the C-X chemical bond is responsible for the very low biodegradability of theses compounds. The commonly used transformation methods for these compounds are based on the organometallic activation and the reduction of the chemical bond. Theses methods requiere strictly anhydrous conditions and toxic compounds and are therefore difficult to implement in the industry.
TECHNICAL DESCRIPTION
The invention is based on the use of bi-nuclear catalysts, preferentially iron-based complexes, displaying macrocyclic ligands, preferencially phtalocyanines, and nitogen bridges in the presence of H2O2 to degradate fluorinated, chlorinated and aromatic compounds.
BENEFITS
(a) Low cost of the catalyst (phtalocyanines), easily accessible at the industrial scale
(b) H2O2 is a clean oxydant largely used in the industry
(c) This method can be used in organic solvants (in the case of industrial effluents), as well as in water (water depollution)
(d) Soft conditions (20-60°C) leading to low enregy consumption.
INDUSTRIAL APPLICATIONS
Industrial effluent treatment.
Water depollution.
For further information, please contact us (Ref 03488-01)