Process for the preparation of perfluorosuccinyl fluoride

Perfluorosuccinyl fluoride is prepared by reaction of a mixture of 1,4-dibromo-perfluorobutane and SO3 in oleum containing at least 65% of free SO3 and a catalyst comprising, besides mono- and bi-valent mercury sulphates, also B2O3 in quantities of from 0.3% to 8% by weight with respect to the free...

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1. Verfasser: GERVASUTTI, CLAUDIO
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Perfluorosuccinyl fluoride is prepared by reaction of a mixture of 1,4-dibromo-perfluorobutane and SO3 in oleum containing at least 65% of free SO3 and a catalyst comprising, besides mono- and bi-valent mercury sulphates, also B2O3 in quantities of from 0.3% to 8% by weight with respect to the free SO3 present in the oleum during the course of the reaction.