WO2003048420A3 - Ion-exchange membrane electrolyser - Google Patents

Ion-exchange membrane electrolyser Download PDF

Info

Publication number
WO2003048420A3
WO2003048420A3 PCT/EP2002/013794 EP0213794W WO03048420A3 WO 2003048420 A3 WO2003048420 A3 WO 2003048420A3 EP 0213794 W EP0213794 W EP 0213794W WO 03048420 A3 WO03048420 A3 WO 03048420A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrolyte
channel
vertical
intermediate plate
electrolyser
Prior art date
Application number
PCT/EP2002/013794
Other languages
French (fr)
Other versions
WO2003048420A2 (en
Inventor
Angelo Ottaviani
Dario Oldani
Original Assignee
Uhdenora Technologies Srl
Angelo Ottaviani
Dario Oldani
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 Uhdenora Technologies Srl, Angelo Ottaviani, Dario Oldani filed Critical Uhdenora Technologies Srl
Priority to AU2002360964A priority Critical patent/AU2002360964A1/en
Publication of WO2003048420A2 publication Critical patent/WO2003048420A2/en
Publication of WO2003048420A3 publication Critical patent/WO2003048420A3/en

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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
    • 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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

A new internal design for ion-exchange membrane electrolyser suitable for electrochemical reactions accompanied by gas evolution and anolyte concentration decrease and/or catholyte concentration increase is described. The electrolyser is of the type provided with a channel suitable for collecting and de-mixing the gas-liquid electrolyte bi-phase fluid positioned in the upper part, with vertical downcoming ducts connected to said channel for recirculating a portion of de-mixed liquid electrolyte, with a duct, also vertical, for discharging the gases and part of the de-mixed electrolyte to the external environment, with a lower distributing pipe for feeding the electrolyte and with vertical strips of sheet for supporting the electrodes. The device of the invention consists in an intermediate plate indicatively halfway between the anode and/or the cathode and the respective compartment wall, wherein said intermediate plate has the upper and lower edge respectively spaced apart from the channel and from the lower distributing pipe. The intermediate plate of the invention allows to increase the liquid recirculation inside the compartment, to uniform the flow of bi-phase fluid along the whole length of the channel with a reduction of the inner pressure fluctuations and to improve the electrolyte concentration homogeneity in both the longitudinal and the vertical direction.
PCT/EP2002/013794 2001-12-05 2002-12-05 Ion-exchange membrane electrolyser WO2003048420A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002360964A AU2002360964A1 (en) 2001-12-05 2002-12-05 Ion-exchange membrane electrolyser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001MI002561A ITMI20012561A1 (en) 2001-12-05 2001-12-05 NEW ION EXCHANGE MEMBRANE ELECTROLIZER
ITMI2001A002561 2001-12-05

Publications (2)

Publication Number Publication Date
WO2003048420A2 WO2003048420A2 (en) 2003-06-12
WO2003048420A3 true WO2003048420A3 (en) 2004-01-15

Family

ID=11448660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/013794 WO2003048420A2 (en) 2001-12-05 2002-12-05 Ion-exchange membrane electrolyser

Country Status (3)

Country Link
AU (1) AU2002360964A1 (en)
IT (1) ITMI20012561A1 (en)
WO (1) WO2003048420A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108742A (en) * 1974-03-09 1978-08-22 Asahi Kasei Kogyo Kabushiki Kaisha Electrolysis
EP0521386A2 (en) * 1991-06-26 1993-01-07 CHLORINE ENGINEERS CORP., Ltd. Electrolyzer and its production
EP0599363A1 (en) * 1992-11-23 1994-06-01 Permascand Ab Cell
WO2001016398A1 (en) * 1999-08-27 2001-03-08 Asahi Kasei Kabushiki Kaisha Unit cell for alkali chloride metal aqueous solution electrolytic tank
US6214181B1 (en) * 1997-06-03 2001-04-10 De Nora S.P.A. Ion exchange membrane bipolar electrolyzer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108742A (en) * 1974-03-09 1978-08-22 Asahi Kasei Kogyo Kabushiki Kaisha Electrolysis
EP0521386A2 (en) * 1991-06-26 1993-01-07 CHLORINE ENGINEERS CORP., Ltd. Electrolyzer and its production
EP0599363A1 (en) * 1992-11-23 1994-06-01 Permascand Ab Cell
US6214181B1 (en) * 1997-06-03 2001-04-10 De Nora S.P.A. Ion exchange membrane bipolar electrolyzer
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
AU2002360964A8 (en) 2003-06-17
WO2003048420A2 (en) 2003-06-12
ITMI20012561A1 (en) 2003-06-05
AU2002360964A1 (en) 2003-06-17

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