Chemistry: electrical and wave energy – Processes and products
Patent
1992-07-30
1994-06-21
Valentine, Donald R.
Chemistry: electrical and wave energy
Processes and products
204228, 204268, 204269, C25B 308, C25B 900, C25B 1102, C25B 1508
Patent
active
053225970
ABSTRACT:
An electrochemical fluorination process comprises passing by forced convection a liquid mixture comprising anhydrous hydrogen fluoride and fluorinatable organic compound, e.g., tripropyl amine, at a temperature and pressure at which a substantially continuous liquid phase is maintained, between the electrodes of a bipolar electrode stack. The bipolar electrode stack comprises a plurality of substantially parallel, spaced-apart electrodes made of an electrically-conductive material, e.g., nickel, which is essentially inert to anhydrous hydrogen fluoride and which, when used as an anode, is active for electrochemical fluorination, and the electrodes of the stack are arranged in either a series or a series-parallel electrical configuration. The bipolar electrode stack has an applied voltage difference which produces a direct current which can cause the production of fluorinated organic compound, e.g., perfluoro(tripropyl amine). An electrochemical fluorination cell which can be used for carrying out the process is also described.
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Childs William V.
Klink Frank W.
Smeltzer John C.
Spangler Jeffrey C.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Valentine Donald R.
Weiss Lucy C.
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