CA2245144A1 - Procede d'electrolyse d'une saumure - Google Patents

Procede d'electrolyse d'une saumure

Info

Publication number
CA2245144A1
CA2245144A1 CA002245144A CA2245144A CA2245144A1 CA 2245144 A1 CA2245144 A1 CA 2245144A1 CA 002245144 A CA002245144 A CA 002245144A CA 2245144 A CA2245144 A CA 2245144A CA 2245144 A1 CA2245144 A1 CA 2245144A1
Authority
CA
Canada
Prior art keywords
cathode
electrolysis
cation exchange
cell
exchange membrane
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002245144A
Other languages
English (en)
Other versions
CA2245144C (fr
Inventor
Francoise Andolfatto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arkema France SA
Original Assignee
Elf Atochem SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9511354&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2245144(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Elf Atochem SA filed Critical Elf Atochem SA
Publication of CA2245144A1 publication Critical patent/CA2245144A1/fr
Application granted granted Critical
Publication of CA2245144C publication Critical patent/CA2245144C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
    • 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
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material
    • C25B13/08—Diaphragms; Spacing elements characterised by the material based on organic materials
    • 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
    • C25B15/02—Process control or regulation
    • 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)
  • Inorganic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

L'invention concerne un procédé d'électrolyse d'une solution de chlorure de sodium au moyen d'une cellule d'électrolyse à membrane et à
cathode à réduction d'oxygène.
Ce procédé consiste à effectuer l'électrolyse d'une solution aqueuse de chlorure de sodium au moyen d'une cellule comprenant une membrane échangeuse de cations qui divise la cellule en un compartiment anodique et un compartiment cathodique dans lequel ladite cathode est placée directement contre la membrane échangeuse de cations, ledit compartiment cathodique étant alimenté par un gaz humidifié contenant de l'oxygène, caractérisé en ce que, pour obtenir une concentration pondérale en soude entre la membrane échangeuse de cations et la cathode inférieure à 38,8 %, on utilise une solution aqueuse de chlorure de sodium (anolyte) ayant une concentration pondérale en chlorure de sodium inférieure à 200 g/l et que l'eau humidifiant le gaz contenant de l'oxygène est sous forme de vapeur d'eau.
Le rendement en soude est supérieur à celui obtenu dans les procédés traditionnels.
CA002245144A 1997-09-23 1998-09-22 Procede d'electrolyse d'une saumure Expired - Fee Related CA2245144C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9711795A FR2768751B1 (fr) 1997-09-23 1997-09-23 Procede d'electrolyse d'une saumure
FR9711795 1997-09-23

Publications (2)

Publication Number Publication Date
CA2245144A1 true CA2245144A1 (fr) 1999-03-23
CA2245144C CA2245144C (fr) 2002-08-13

Family

ID=9511354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002245144A Expired - Fee Related CA2245144C (fr) 1997-09-23 1998-09-22 Procede d'electrolyse d'une saumure

Country Status (12)

Country Link
US (1) US6080298A (fr)
EP (1) EP0903425B1 (fr)
JP (1) JP3073968B2 (fr)
KR (1) KR100313259B1 (fr)
CN (1) CN1107744C (fr)
AT (1) ATE377100T1 (fr)
BR (1) BR9803590A (fr)
CA (1) CA2245144C (fr)
DE (1) DE69838632T2 (fr)
ES (1) ES2296325T3 (fr)
FR (1) FR2768751B1 (fr)
NO (1) NO322395B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050011753A1 (en) * 2003-06-23 2005-01-20 Jackson John R. Low energy chlorate electrolytic cell and process
FR2930541B1 (fr) 2008-04-29 2010-05-21 Solvay Procede d'epuration de solutions aqueuses
KR101239145B1 (ko) 2009-03-17 2013-03-06 김영준 음식물 쓰레기에 포함된 염화나트륨 수용액을 전기 분해하는 장치
CN102134724B (zh) * 2010-12-31 2012-06-20 北京化工大学 阴离子膜电解槽装置用于纯碱生产中废液脱盐的方法
CN106148992A (zh) * 2015-04-20 2016-11-23 李坚 离子膜催化法或电渗析催化法水制氢及其应用
EP3608444B1 (fr) 2017-03-30 2025-01-01 Kaneka Corporation Procédé de fabrication d'hydroxyde de sodium et/ou de chlore et cellule d'électrolyse d'eau salée à deux chambres

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221644A (en) * 1979-08-14 1980-09-09 Diamond Shamrock Corporation Air-depolarized chlor-alkali cell operation methods
JPS5641392A (en) * 1979-09-11 1981-04-18 Toyo Soda Mfg Co Ltd Electrolytic method of alkali chloride aqueous solution
JP3400508B2 (ja) * 1993-10-27 2003-04-28 ペルメレック電極株式会社 塩水電解方法及び電解槽
JP3344828B2 (ja) * 1994-06-06 2002-11-18 ペルメレック電極株式会社 塩水の電解方法
JPH08333693A (ja) * 1995-06-05 1996-12-17 Permelec Electrode Ltd 電解槽

Also Published As

Publication number Publication date
DE69838632T2 (de) 2008-08-28
EP0903425A1 (fr) 1999-03-24
ES2296325T3 (es) 2008-04-16
KR19990029993A (ko) 1999-04-26
FR2768751B1 (fr) 1999-10-29
CA2245144C (fr) 2002-08-13
JPH11152591A (ja) 1999-06-08
JP3073968B2 (ja) 2000-08-07
FR2768751A1 (fr) 1999-03-26
NO984306L (no) 1999-03-24
DE69838632D1 (de) 2007-12-13
EP0903425B1 (fr) 2007-10-31
NO984306D0 (no) 1998-09-17
KR100313259B1 (ko) 2002-02-19
BR9803590A (pt) 1999-12-14
ATE377100T1 (de) 2007-11-15
US6080298A (en) 2000-06-27
NO322395B1 (no) 2006-10-02
CN1107744C (zh) 2003-05-07
CN1219610A (zh) 1999-06-16

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130924