PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE AND CHLORATE

The invention relates to a process for the production of alkali metal chlorate comprising: providing an electrochemical cell comprising an anode and a cathode in separate anode and cathode compartments; contacting the cathode with an electrolyte comprising at least one organic mediator and one or mo...

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Bibliographische Detailangaben
Hauptverfasser: ROSVALL, MAGNUS, EDVINSSON-ALBERS, ROLF
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:The invention relates to a process for the production of alkali metal chlorate comprising: providing an electrochemical cell comprising an anode and a cathode in separate anode and cathode compartments; contacting the cathode with an electrolyte comprising at least one organic mediator and one or more organic or mineral acids; reacting the organic mediator at the cathode to form at least one reduced form of the mediator; reacting the at least one reduced form of the mediator with oxygen to form hydrogen peroxide; contacting the anode with an anolyte comprising alkali metal chloride; reacting chloride at the anode to form chlorine that is hydrolysed; and, reacting the hydrolysed chlorine to form chlorate.