Invention Grant
- Patent Title: Method for preparing lithium bis(fluorosulphonyl)imide salt
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Application No.: US17056781Application Date: 2019-05-21
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Publication No.: US11261087B2Publication Date: 2022-03-01
- Inventor: Philippe Leduc , Dominique Deur-Bert
- Applicant: Arkema France
- Applicant Address: FR Colombes
- Assignee: Arkema France
- Current Assignee: Arkema France
- Current Assignee Address: FR Colombes
- Agency: Buchanan Ingersoll & Rooney P.C.
- Priority: FR1854313 20180523
- International Application: PCT/FR2019/051148 WO 20190521
- International Announcement: WO2019/224470 WO 20191128
- Main IPC: C01B21/093
- IPC: C01B21/093 ; B01D47/02
Abstract:
A method for preparing Cl—SO2NHSO2Cl including a step of chlorinating sulphamic acid with at least one chlorinating agent and at least one sulphur-containing agent, the method resulting in a flow F1, preferably liquid, including Cl—SO2NHSO2Cl and a gas stream F2 including HCl and SO2, the method including a step a) of treating the gas stream F2. Also, a method for preparing LiFSl including the abovementioned method for preparing Cl—SO2NHSO2Cl.
Public/Granted literature
- US20210122634A1 METHOD FOR PREPARING LITHIUM BIS(FLUOROSULPHONYL)IMIDE SALT Public/Granted day:2021-04-29
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