Invention Grant
US07781614B2 Method for treating an imide organic solution bearing a sulphonyl group
有权
用于处理含有磺酰基的酰亚胺有机溶液的方法
- Patent Title: Method for treating an imide organic solution bearing a sulphonyl group
- Patent Title (中): 用于处理含有磺酰基的酰亚胺有机溶液的方法
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Application No.: US10505043Application Date: 2003-02-14
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Publication No.: US07781614B2Publication Date: 2010-08-24
- Inventor: Bernard Besson
- Applicant: Bernard Besson
- Applicant Address: FR Aubervilliers
- Assignee: Rhodia Chimie
- Current Assignee: Rhodia Chimie
- Current Assignee Address: FR Aubervilliers
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: FR0202137 20020220
- International Application: PCT/FR03/00482 WO 20030214
- International Announcement: WO03/070694 WO 20030828
- Main IPC: C07C213/00
- IPC: C07C213/00
Abstract:
The invention relates to a method of treating an impure organic composition of ammonium imide, one of the substituents of which imide ion is a sulfonyl carried by a perhalogenated, advantageously perfluorinated carbon, characterized in that said composition is subjected to a step of liquid-liquid extraction by means of an aqueous phase and containing, as impurity, at least one of the chemical species chosen from halides, sulfonates and sulfinates, in particular those whose sulfur is carried by a perhalogenated carbon.
Public/Granted literature
- US20050222460A1 Method for treating an imide organic solution bearing a sulphonyl group Public/Granted day:2005-10-06
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