Method for producing hexafluoropropylene oxide

The present invention provides a novel method for producing hexafluoropropylene oxide, which can attain a high HFPO selectivity without using a phase transfer catalyst. The method comprises introducing (i) hexafluoropropylene, (ii) a water-soluble and aprotic organic solvent which comprises at least...

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Hauptverfasser: HIRAI, MAI, SENBA, YASUHIDE, ICHIHARA, KAZUYOSHI, NAKAYA, HIDEKI
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention provides a novel method for producing hexafluoropropylene oxide, which can attain a high HFPO selectivity without using a phase transfer catalyst. The method comprises introducing (i) hexafluoropropylene, (ii) a water-soluble and aprotic organic solvent which comprises at least one selected from the group consisting of acetonitrile, glyme and N,N-dimethylformamide, and (iii) an aqueous solution of an oxidizing agent which is a hypohalite comprises at least one selected from the group consisting of sodium hypochlorite and calcium hypochlorite into a small space having a passage width of 3 cm or less, thereby bringing into contact with each other and reacting hexafluoropropylene with the oxidizing agent to obtain hexafluoropropylene oxide, wherein the reaction time is 0.01 to 1,000 seconds.