WO2003035939A3 - Electrochemical half cell - Google Patents

Electrochemical half cell Download PDF

Info

Publication number
WO2003035939A3
WO2003035939A3 PCT/EP2002/011787 EP0211787W WO03035939A3 WO 2003035939 A3 WO2003035939 A3 WO 2003035939A3 EP 0211787 W EP0211787 W EP 0211787W WO 03035939 A3 WO03035939 A3 WO 03035939A3
Authority
WO
WIPO (PCT)
Prior art keywords
gas
connecting channel
half cell
pockets
pocket
Prior art date
Application number
PCT/EP2002/011787
Other languages
German (de)
French (fr)
Other versions
WO2003035939A2 (en
Inventor
Hans-Dieter Pinter
Andreas Bulan
Walter Klesper
Fritz Gestermann
Original Assignee
Bayer Ag
Hans-Dieter Pinter
Andreas Bulan
Walter Klesper
Fritz Gestermann
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Ag, Hans-Dieter Pinter, Andreas Bulan, Walter Klesper, Fritz Gestermann filed Critical Bayer Ag
Priority to KR10-2004-7006032A priority Critical patent/KR20040062953A/en
Priority to AU2002350591A priority patent/AU2002350591A1/en
Priority to HU0401580A priority patent/HUP0401580A3/en
Priority to US10/493,441 priority patent/US20040262153A1/en
Priority to EP02785267A priority patent/EP1442158A2/en
Priority to CA002464638A priority patent/CA2464638A1/en
Priority to JP2003538433A priority patent/JP2005506455A/en
Publication of WO2003035939A2 publication Critical patent/WO2003035939A2/en
Publication of WO2003035939A3 publication Critical patent/WO2003035939A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • C25B11/031—Porous electrodes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Hybrid Cells (AREA)

Abstract

An electrochemical half cell, particularly suitable for the production of chlorine from an aqueous solution of an alkaline chloride, comprises an electrode chamber (10) for electrolyte. Several gas pockets (20, 22) for gas are also provided. A gas diffusion electrode (36) separates the gas pockets (20, 22) from the electrode chamber (10). A connecting channel (26) is also provided, by means of which the two gas pockets (20, 22) are connected to each other. Gas in the lower gas pocket (20) can flow into the connecting channel (26) through an outlet opening (28). Said gas climbs therein in the direction of the arrow (46) and arrives in a second gas pocket (22), lying thereabove, through an inlet opening (30). According to the invention, a non-return element (40) is arranged in the connecting channel (26) to avoid ingress of electrolyte (42) into the gas pocket (22).
PCT/EP2002/011787 2001-10-25 2002-10-22 Electrochemical half cell WO2003035939A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR10-2004-7006032A KR20040062953A (en) 2001-10-25 2002-10-22 Electrochemical half cell
AU2002350591A AU2002350591A1 (en) 2001-10-25 2002-10-22 Electrochemical half cell
HU0401580A HUP0401580A3 (en) 2001-10-25 2002-10-22 Electrochemical half cell
US10/493,441 US20040262153A1 (en) 2001-10-25 2002-10-22 Electrochemical half cell
EP02785267A EP1442158A2 (en) 2001-10-25 2002-10-22 Electrochemical half cell
CA002464638A CA2464638A1 (en) 2001-10-25 2002-10-22 Electrochemical half cell
JP2003538433A JP2005506455A (en) 2001-10-25 2002-10-22 Electrochemical half-cell

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10152791.8 2001-10-25
DE10152791A DE10152791A1 (en) 2001-10-25 2001-10-25 Process for the production of chlorine and caustic soda by electrolysis using a gas diffusion electrode demister

Publications (2)

Publication Number Publication Date
WO2003035939A2 WO2003035939A2 (en) 2003-05-01
WO2003035939A3 true WO2003035939A3 (en) 2004-01-08

Family

ID=7703747

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/011787 WO2003035939A2 (en) 2001-10-25 2002-10-22 Electrochemical half cell

Country Status (10)

Country Link
US (1) US20040262153A1 (en)
EP (1) EP1442158A2 (en)
JP (1) JP2005506455A (en)
KR (1) KR20040062953A (en)
CN (1) CN1575354A (en)
AU (1) AU2002350591A1 (en)
CA (1) CA2464638A1 (en)
DE (1) DE10152791A1 (en)
HU (1) HUP0401580A3 (en)
WO (1) WO2003035939A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI568888B (en) 2011-09-15 2017-02-01 第諾拉工業公司 Gas-diffusion electrode
AU2012382382A1 (en) 2012-06-12 2015-01-15 Aquahydrex Pty Ltd Breathable electrode and method for use in water splitting
MX2016001378A (en) 2013-07-31 2016-08-18 Aquahydrex Pty Ltd Modular electrochemical cells.
CN113677829A (en) 2019-02-01 2021-11-19 阿酷海德里克斯公司 Electrochemical system with confined electrolyte
DE102022210670B4 (en) 2022-10-10 2024-04-18 Volkswagen Aktiengesellschaft Process for manufacturing a battery pouch cell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622744C1 (en) * 1996-06-07 1997-07-31 Bayer Ag Pressure-compensated electrochemical half-cell
WO2001016398A1 (en) * 1999-08-27 2001-03-08 Asahi Kasei Kabushiki Kaisha Unit cell for alkali chloride metal aqueous solution electrolytic tank

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213833A (en) * 1978-09-05 1980-07-22 The Dow Chemical Company Electrolytic oxidation in a cell having a separator support
DE4444114C2 (en) * 1994-12-12 1997-01-23 Bayer Ag Electrochemical half cell with pressure compensation
US6093853A (en) * 1997-07-04 2000-07-25 Nok Corporation Phenylenediamine derivative, production method thereof and antioxidant for rubber using it as effective constituent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622744C1 (en) * 1996-06-07 1997-07-31 Bayer Ag Pressure-compensated electrochemical half-cell
WO2001016398A1 (en) * 1999-08-27 2001-03-08 Asahi Kasei Kabushiki Kaisha Unit cell for alkali chloride metal aqueous solution electrolytic tank
EP1229148A1 (en) * 1999-08-27 2002-08-07 Asahi Kasei Kabushiki Kaisha Unit cell for alkali chloride metal aqueous solution electrolytic tank

Also Published As

Publication number Publication date
CN1575354A (en) 2005-02-02
CA2464638A1 (en) 2003-05-01
KR20040062953A (en) 2004-07-09
WO2003035939A2 (en) 2003-05-01
US20040262153A1 (en) 2004-12-30
HUP0401580A3 (en) 2005-07-28
DE10152791A1 (en) 2003-05-08
JP2005506455A (en) 2005-03-03
HUP0401580A2 (en) 2004-11-29
EP1442158A2 (en) 2004-08-04
AU2002350591A1 (en) 2003-05-06

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