Electrosynthesis of hydrogen peroxide

Details Electrosynthesis of hydrogen peroxide Electrosynthesis of hydrogen peroxide

C - Chemistry, Metallurgy

25

B

C25B 1/30 (2006.01)

Patent

CA 2612543

The invention relates to a process for the production of hydrogen peroxide comprising: providing an electrochemical cell comprising an anode and a cathode; contacting the cathode with an electrolyte comprising at least one organic mediator dissolved in an at least partially organic continuous liquid phase comprising an at least partially organic salt and a neutral co-solvent, said salt comprising at least one kind of organic cation and/or organic anion, said continuous liquid phase having an electrical conductivity under process conditions of at least about 0.1 S/m; reacting the organic mediator at the cathode to form at least one reduced form of the mediator; and, reacting the at least one reduced form of the mediator with oxygen to form hydrogen peroxide.

Procédé pour la production de peroxide d'hydrogène : fourniture d'une cellule électrochimique qui comprend une anode et une cathode ; contact entre la cathode et un électrolyte avec au moins un médiateur organique dissous dans une phase liquide continue au moins partiellement organique à sel au moins partiellement organique et co-solvant neutre. Le sel comprend au moins un type de cation organique et/ou d'anion organique, tandis que la phase liquide a une conductivité électrique dans les conditions de processus d'au moins environ 0,1 S/m. Viennent ensuite la réaction avec le médiateur à la cathode pour donner au moins une forme réduite de ce médiateur, et la réaction d'au moins une forme réduite du médiateur avec de l'oxygène pour former le peroxyde d'hydrogène.

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