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US 12,404,175 B2Granted
Process for preparing bis(fluorosulfonyl) imide
AssigneeArkema France
InventorDominique Deur-Bert
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Abstract
The invention relates to a process for preparing bis(fluorosulfonyl)imide, comprising the steps of: i) providing a stream A1 containing HF and a reactor containing a liquid phase A2 that contains bis(chlorosulfonyl)imide; ii) in said reactor, bringing said liquid phase A2 into contact with said stream A1 to produce bis(fluorosulfonyl)imide, said process being characterized in that said stream A1 is injected into said liquid phase A2.
Claims13
A process for preparing bis(fluorosulfonyl)imide comprising the steps of:
- i. providing a stream A1 comprising HF and providing a reactor containing a liquid phase A2 comprising bis(halosulfonyl)imide, excluding bis(fluorosulfonyl)imide;
- ii. in said reactor, bringing said liquid phase A2 into contact with said stream A1 to produce bis(fluorosulfonyl)imide;
- wherein said stream A1 is injected into said liquid phase A2, wherein when unreacted HF is removed from the reactor, it is not returned to the reactor, wherein said reactor also comprises a dip tube through which said stream A1 is injected into said liquid phase A2.
Dependencies are inferred from the claim text.