Process for the electrochemical fluorination of organic acid...

Details Process for the electrochemical fluorination of organic acid... Process for the electrochemical fluorination of organic acid...

C - Chemistry, Metallurgy

25

B

204/52.3

C25B 3/08 (2006.01)

Patent

CA 1041035

Process for the electrochemical fluorination of organic acid halides Abstract of the Disclosure A process for the electrochemical fluorination of organic acid halides is provided. The electrochemical process is carried out in liquid hydrogen fluoride as electrolyte containing 5 to 20 percent by weight based on the electrolyte of the acid halide, at temperatures of 20 to 50°C, optionally under pressure and at a cell voltage of 9 to 15, preferably of 9 to 13 volts direct current. The anodes used are of nickel or a nickel alloy while the cathodes are e.g. of iron or steel and the distance between the electrodes is about 6 to 12 mm. According to this process perfluorinated compounds of high purity and in good yields are obtained. These compounds are useful as surfactants or as intermediates for the manufacture of surfactants, oil- and water-repellents lubricants and the like.

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