PROCESS FOR THE PRODUCTION OF PERFLUOROALKYLSULPHONYL FLUORIDES AND ELECTRODES FOR PERFORMANCE OF THE PROCESS

PROCESS FOR THE PRODUCTION OF PERFLUOROALKYLSULPHONYL FLUORIDES AND ELECTRODES FOR PERFORMANCE OF THE PROCESS

The present invention provides a process for the production of perfluoroalkylsulphonyl fluorides of the formula C n F2n+1SO2F with n=6-10 by electrochemical fluorination of alkylsulphonyl halides of the general formula C n H2n+1SO2X with n=6-10 and X=F, Cl, Br or I in hydrogen fluoride, which proces...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WEBER, RAINER, SCHLECKER, HARTMUT, BULAN, ANDREAS, MORETTO, HANS-HEINRICH, MUZIOL, ZBIGNIEW
Format: Patent
Sprache:eng ; fre
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention provides a process for the production of perfluoroalkylsulphonyl fluorides of the formula C n F2n+1SO2F with n=6-10 by electrochemical fluorination of alkylsulphonyl halides of the general formula C n H2n+1SO2X with n=6-10 and X=F, Cl, Br or I in hydrogen fluoride, which process is characterised in that electrodes are used which consist of nickel with a columnar structure or which are coated with nickel with a columnar structure. The invention also provides electrodes for the production of perfluoroalkylsulphonyl fluorides from the corresponding alkylsulphonyl halides by electrochemical fluorination in hydrogen fluoride, which electrodes are characterised in that they consist of nickel with a columnar structure or are coated with nickel with a columnar structure.