Title:
METHOD FOR TREATING AN IMIDE ORGANIC SOLUTION BEARING A SULPHONYL GROUP
Document Type and Number:
WIPO Patent Application WO2003070694
Kind Code:
A3
Abstract:
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.
More Like This:
Inventors:
BESSON BERNARD (FR)
Application Number:
PCT/FR2003/000482
Publication Date:
March 25, 2004
Filing Date:
February 14, 2003
Export Citation:
Assignee:
RHODIA CHIMIE SA (FR)
BESSON BERNARD (FR)
BESSON BERNARD (FR)
International Classes:
C07C303/44; C07C311/48; (IPC1-7): C07C303/44; C07C311/48
Foreign References:
| EP0364340A1 | 1990-04-18 |
Other References:
H. MATSUMOTO, ET AL.: "Highly conductive room temperature molten salts based on small trimethylalkylammonium cations and bis(trifluoromethylsulphonyl)imide", CHEMISTRY LETTERS, no. 8, August 2000 (2000-08-01), Chemical Society of Japan, Tokyo, JP, pages 922 - 923, XP002219330, ISSN: 0366-7022
P. WASSERSCHEID, ET AL.: "Synthesis and properties of ionic liquids derived from the 'chiral pool'", CHEMICAL COMMUNICATIONS, no. 3, 7 January 2002 (2002-01-07), Royal Society of Chemistry, Letchworth, GB, pages 200 - 201, XP002219331, ISSN: 1359-7345
P. WASSERSCHEID, ET AL.: "Synthesis and properties of ionic liquids derived from the 'chiral pool'", CHEMICAL COMMUNICATIONS, no. 3, 7 January 2002 (2002-01-07), Royal Society of Chemistry, Letchworth, GB, pages 200 - 201, XP002219331, ISSN: 1359-7345
Download PDF:
Previous Patent: LACTIC ACID DERIVATIVE
Next Patent: PROCESSES FOR PRODUCTION OF DIHYDROXYDIPHENYL SULFONE ISOMERIC MIXTURES
Next Patent: PROCESSES FOR PRODUCTION OF DIHYDROXYDIPHENYL SULFONE ISOMERIC MIXTURES