C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 303/44 (2006.01) C07C 311/48 (2006.01)
Patent
CA 2474648
The invention concerns a method for treating an imide organic solution bearing a sulphonyl group. Said method is designed for treatment of an impure ammonium imide composition, whereby one of the substituents of the imide is a sulphonyl borne by a perhalogenated carbon, wherein said composition is subjected to a liquid-liquid extraction step using an aqueous phase and comprising as impurity at least one of the chemical species selected among halides, sulphonates and sulphinates, in particular those whereof the sulphur is borne by a perhalogenated carbon. The invention is applicable to the synthesis of electrolytes for high-performance batteries.
L'invention concerne un procédé de traitement d'une solution organique d'imide porteur de groupe sulfonyle. Ce procédé vise à traiter une composition organique impure d'imidure d'ammonium, imidure dont l'un des substituants est un sulfonyle porté par un carbone perhalogéné dans lequel on soumet ladite composition à une étape d'extraction liquide-liquide au moyen d'une phase aqueuse et comportant comme impureté au moins l'une des espèces chimiques choisies parmi les halogénures, les sulfonates et les sulfinates, notamment ceux dont le soufre est porté par un carbone perhalogéné. Application à la synthèse d'électrolyte pour pile de haute performance.
Rhodia Chimie
Robic
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