C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
C25B 3/08 (2006.01) C07C 303/22 (2006.01) C25B 11/04 (2006.01) C07C 309/80 (2006.01)
Patent
CA 2103757
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.
Bulan Andreas
Moretto Hans-Heinrich
Muziol Zbigniew
Schlecker Hartmut
Weber Rainer
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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