Invention Grant
- Patent Title: Purification of sulfuryl fluoride
- Patent Title (中): 硫酰氟的纯化
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Application No.: US362749Application Date: 1999-07-29
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Publication No.: US6143269APublication Date: 2000-11-07
- Inventor: Alf Schulz , Matthias Rieland , Lothar Zipfel , Thomas Born , Eckhard Hausmann
- Applicant: Alf Schulz , Matthias Rieland , Lothar Zipfel , Thomas Born , Eckhard Hausmann
- Applicant Address: DEX Hannover
- Assignee: Solvay Fluor und Derivate GmbH
- Current Assignee: Solvay Fluor und Derivate GmbH
- Current Assignee Address: DEX Hannover
- Priority: DEX19834882 19980801
- Main IPC: A01N59/10
- IPC: A01N59/10 ; C01B17/45 ; C01B17/46
Abstract:
Sulfuryl fluoride (SO.sub.2 F.sub.2) frequently contains chlorine, sulfur dioxide and other acidic impurities owing to its production. Effective purification is possible if the sulfuryl fluoride is contacted with hydrogen peroxide or a precursor thereof, preferably in an aqueous solution. The purified product is suitable as a pesticidal agent, for example.
Public/Granted literature
- US5002649A Selective stripping apparatus Public/Granted day:1991-03-26
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