Global Patent Index - EP 2004876 A2

EP 2004876 A2 20081224 - PRODUCING HYDROGEN PEROXIDE

Title (en)

PRODUCING HYDROGEN PEROXIDE

Title (de)

ERZEUGUNG VON WASSERSTOFFPEROXID

Title (fr)

FABRICATION DE PEROXYDE D'HYDROGÈNE

Publication

EP 2004876 A2 20081224 (EN)

Application

EP 07732262 A 20070402

Priority

  • GB 2007001211 W 20070402
  • GB 0607272 A 20060411

Abstract (en)

[origin: GB2437079A] An electrolytic cell 1 comprises an electrode (figure 1 5,6) in a chamber including an electrolyte 10 and an electrical power supply 9 arranged to supply electrical energy to the electrode (figure 1 5,6). A current sensor 18 detects electrical current in the cell. A reservoir of a metal salt solution 17, such as sodium chloride, is provided. The cell 1 is provided with an ion exchange membrane (figure 1 4) dividing the cell into two chambers (figure 1 2,3). A controller 19 is arranged to supply metal salt solution from the reservoir to the chamber of the cell, in dependence on the current detected at the sensor 18. This permits the conductivity of the electrolyte to be brought up to the required levels quickly, independently of dynamic cell conditions. The hydrogen peroxide producing apparatus may be incorporated into an appliance such as an automatic dishwasher.

IPC 8 full level

C25B 1/30 (2006.01); C25B 9/19 (2021.01); C25B 15/08 (2006.01)

CPC (source: EP GB US)

A47L 15/00 (2013.01 - GB); A47L 15/0002 (2013.01 - EP US); A47L 15/4238 (2013.01 - EP US); A61L 2/186 (2013.01 - EP US); C11D 3/3947 (2013.01 - EP US); C25B 1/30 (2013.01 - EP GB US); C25B 9/19 (2021.01 - GB); C25B 15/08 (2013.01 - EP US); D06F 75/10 (2013.01 - EP US); A47L 2601/06 (2013.01 - EP US); A61L 2202/11 (2013.01 - EP US); A61L 2202/14 (2013.01 - EP US); C11D 2111/14 (2024.01 - EP US); C11D 2111/46 (2024.01 - EP US)

Citation (search report)

See references of WO 2007128959A2

Citation (examination)

US 6712949 B2 20040330 - GOPAL RAMANATHAN [US]

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 MT NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

GB 0607272 D0 20060517; GB 2437079 A 20071017; CN 101448981 A 20090603; CN 101448981 B 20110907; EP 2004876 A2 20081224; TW 200809010 A 20080216; US 2010006122 A1 20100114; WO 2007128959 A2 20071115; WO 2007128959 A3 20080228

DOCDB simple family (application)

GB 0607272 A 20060411; CN 200780018169 A 20070402; EP 07732262 A 20070402; GB 2007001211 W 20070402; TW 96112398 A 20070410; US 29520907 A 20070402