Global Patent Index - EP 1896632 B1

EP 1896632 B1 2009-02-25 - PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE AND CHLORATE

Title (en)

PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE AND CHLORATE

Title (de)

VERFAHREN ZUR HERSTELLUNG VON WASSERSTOFFPEROXID UND CHLORAT

Title (fr)

PROCÉDÉ DE PRODUCTION DE PEROXYDE D'HYDROGÈNE ET DE CHLORATE

Publication

EP 1896632 B1 (EN)

Application

EP 06748023 A

Priority

  • SE 2006050183 W
  • EP 05105885 A
  • EP 06748023 A

Abstract (en)

[origin: WO2007004971A1] 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.

IPC 8 full level (invention and additional information)

C25B 1/26 (2006.01); C25B 1/30 (2006.01)

CPC (invention and additional information)

C25B 1/265 (2013.01); C25B 1/30 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family

WO 2007004971 A1 20070111; AT 423861 T 20090315; BR PI0612885 A2 20101207; BR PI0612885 B1 20170307; CA 2612545 A1 20070111; CA 2612545 C 20100406; CN 101213324 A 20080702; CN 101213324 B 20110907; DE 602006005363 D1 20090409; EP 1896632 A1 20080312; EP 1896632 B1 20090225; RU 2008103350 A 20090810; RU 2375500 C2 20091210