WO2020127021A3 - Verfahren zur membran-elektrolyse von alkalichloridlösungen mit gasdiffusionselektrode - Google Patents

Verfahren zur membran-elektrolyse von alkalichloridlösungen mit gasdiffusionselektrode Download PDF

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Publication number
WO2020127021A3
WO2020127021A3 PCT/EP2019/085312 EP2019085312W WO2020127021A3 WO 2020127021 A3 WO2020127021 A3 WO 2020127021A3 EP 2019085312 W EP2019085312 W EP 2019085312W WO 2020127021 A3 WO2020127021 A3 WO 2020127021A3
Authority
WO
WIPO (PCT)
Prior art keywords
akaline
gas
diffusion electrode
chloride solutions
membrane electrolysis
Prior art date
Application number
PCT/EP2019/085312
Other languages
English (en)
French (fr)
Other versions
WO2020127021A2 (de
Inventor
Andreas Bulan
Michael Grossholz
Original Assignee
Covestro Intellectual Property Gmbh & Co. Kg
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 Covestro Intellectual Property Gmbh & Co. Kg filed Critical Covestro Intellectual Property Gmbh & Co. Kg
Priority to US17/413,544 priority Critical patent/US20220056594A1/en
Priority to KR1020217018329A priority patent/KR20210103482A/ko
Priority to JP2021530211A priority patent/JP2022510916A/ja
Priority to EP19818094.5A priority patent/EP3899101A2/de
Priority to CN201980084342.7A priority patent/CN113166952B/zh
Publication of WO2020127021A2 publication Critical patent/WO2020127021A2/de
Publication of WO2020127021A3 publication Critical patent/WO2020127021A3/de

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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
    • 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
    • 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
    • C25B11/032—Gas diffusion 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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
    • C25B11/081—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound the element being a noble metal
    • 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
    • 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
    • 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
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
    • C25B15/027—Temperature
    • 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
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
    • C25B15/029—Concentration
    • C25B15/031—Concentration pH
    • 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
    • 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
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

Es werden Verfahren zur Elektrolyse von Alkalichloriden mit Sauerstoffverzehrelektroden mit besonderen Betriebsparameter für die Außerbetriebnahme und Wiederinbetriebnahme beschrieben.
PCT/EP2019/085312 2018-12-18 2019-12-16 Verfahren zur membran-elektrolyse von alkalichloridlösungen mit gasdiffusionselektrode WO2020127021A2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US17/413,544 US20220056594A1 (en) 2018-12-18 2019-12-16 Membrane electrolysis processes for akaline chloride solutions, using a gas-diffusion electrode
KR1020217018329A KR20210103482A (ko) 2018-12-18 2019-12-16 기체-확산 전극을 사용하는, 알칼리 염화물 용액의 막 전기분해 방법
JP2021530211A JP2022510916A (ja) 2018-12-18 2019-12-16 ガス拡散電極を用いた、アルカリ塩化物溶液のための膜電解プロセス
EP19818094.5A EP3899101A2 (de) 2018-12-18 2019-12-16 Verfahren zur membran-elektrolyse von alkalichloridlösungen mit gasdiffusionselektrode
CN201980084342.7A CN113166952B (zh) 2018-12-18 2019-12-16 使用气体扩散电极的碱金属氯化物溶液的膜电解法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18213272.0A EP3670706B1 (de) 2018-12-18 2018-12-18 Verfahren zur membran-elektrolyse von alkalichloridlösungen mit gasdiffusionselektrode
EP18213272.0 2018-12-18

Publications (2)

Publication Number Publication Date
WO2020127021A2 WO2020127021A2 (de) 2020-06-25
WO2020127021A3 true WO2020127021A3 (de) 2020-08-20

Family

ID=64744547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/085312 WO2020127021A2 (de) 2018-12-18 2019-12-16 Verfahren zur membran-elektrolyse von alkalichloridlösungen mit gasdiffusionselektrode

Country Status (6)

Country Link
US (1) US20220056594A1 (de)
EP (2) EP3670706B1 (de)
JP (1) JP2022510916A (de)
KR (1) KR20210103482A (de)
CN (1) CN113166952B (de)
WO (1) WO2020127021A2 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558413A (en) * 1978-06-30 1980-01-22 Toagosei Chem Ind Co Ltd Protecting method of stop electrolytic cell
US4618403A (en) * 1983-10-24 1986-10-21 Olin Corporation Method of stabilizing metal-silica complexes in alkali metal halide brines
JP2001026891A (ja) * 1999-07-09 2001-01-30 Toagosei Co Ltd ガス拡散陰極を用いた塩化アルカリ電解槽の運転開始方法
EP2639337A2 (de) * 2012-03-15 2013-09-18 Bayer Intellectual Property GmbH Verfahren zur Elektrolyse von Alkalichloriden mit Sauerstoffverzehrelektroden
EP2639338A2 (de) * 2012-03-15 2013-09-18 Bayer Intellectual Property GmbH Verfahren zur Elektrolyse von Alkalichloriden mit Sauerstoffverzehrelektroden in Micro-Gap-Anordnung
EP2639339A2 (de) * 2012-03-15 2013-09-18 Bayer Intellectual Property GmbH Verfahren zur Elektrolyse von Alkalichloriden mit Sauerstoffverzehrelektroden, die Öffnungen aufweisen

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US3549837A (en) 1968-09-24 1970-12-22 Bendix Corp Differential pressure switch with improved magnetic piston actuator means
JPS5312798A (en) * 1976-07-22 1978-02-04 Tokuyama Soda Co Ltd Electrolyzing eqiupment for aqueous solution of alkali metal salt
US4169775A (en) * 1978-07-31 1979-10-02 Olin Corporation Protection of the low hydrogen overvoltage catalytic coatings
US4364806A (en) 1981-05-08 1982-12-21 Diamond Shamrock Corporation Gas electrode shutdown procedure
US4615777A (en) * 1982-11-24 1986-10-07 Olin Corporation Method and composition for reducing the voltage in an electrolytic cell
US4561949A (en) * 1983-08-29 1985-12-31 Olin Corporation Apparatus and method for preventing activity loss from electrodes during shutdown
US4578159A (en) 1985-04-25 1986-03-25 Olin Corporation Electrolysis of alkali metal chloride brine in catholyteless membrane cells employing an oxygen consuming cathode
US4724636A (en) 1986-10-08 1988-02-16 Westinghouse Electric Corp. Grinding tool for use in a fuel assembly repair and reconstitution system
US5630930A (en) * 1995-07-26 1997-05-20 Ppg Industries, Inc. Method for starting a chlor-alkali diaphragm cell
JP3651871B2 (ja) * 1997-08-22 2005-05-25 クロリンエンジニアズ株式会社 イオン交換膜法電解槽の運転開始方法
JP3553775B2 (ja) 1997-10-16 2004-08-11 ペルメレック電極株式会社 ガス拡散電極を使用する電解槽
FR2772051B1 (fr) * 1997-12-10 1999-12-31 Atochem Elf Sa Procede d'immobilisation d'une cellule d'electrolyse a membrane et a cathode a reduction d'oxygene
IT1317753B1 (it) 2000-02-02 2003-07-15 Nora S P A Ora De Nora Impiant Cella di elettrolisi con elettrodo a diffusione di gas.
ITMI20012379A1 (it) * 2001-11-12 2003-05-12 Uhdenora Technologies Srl Cella di elettrolisi con elettrodi a diffusione di gas
JP2004300510A (ja) 2003-03-31 2004-10-28 Mitsui Chemicals Inc ガス拡散陰極を用いたイオン交換膜型電解槽の保護方法
JP2006183113A (ja) * 2004-12-28 2006-07-13 Kaneka Corp 食塩水電解槽の性能回復方法ならびに該方法により処理された陰極を用いた生産苛性ソーダ溶液および塩素の製造方法
DE102005023615A1 (de) 2005-05-21 2006-11-23 Bayer Materialscience Ag Verfahren zur Herstellung von Gasdiffusionselektroden
JP4339337B2 (ja) * 2005-09-16 2009-10-07 株式会社カネカ 電気分解用陰極の活性化方法および電気分解方法
ITMI20061388A1 (it) 2006-07-18 2008-01-19 Uhdenora Spa Procedimento per la protezione di celle elettroniche equipaggiate con elettrodoti a diffusione gassosa in condizioni di fermata
DE102013226414A1 (de) * 2013-12-18 2015-06-18 Evonik Industries Ag Vorrichtung und Verfahren zum flexiblen Einsatz von Strom
JP6397396B2 (ja) * 2015-12-28 2018-09-26 デノラ・ペルメレック株式会社 アルカリ水電解方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558413A (en) * 1978-06-30 1980-01-22 Toagosei Chem Ind Co Ltd Protecting method of stop electrolytic cell
US4618403A (en) * 1983-10-24 1986-10-21 Olin Corporation Method of stabilizing metal-silica complexes in alkali metal halide brines
JP2001026891A (ja) * 1999-07-09 2001-01-30 Toagosei Co Ltd ガス拡散陰極を用いた塩化アルカリ電解槽の運転開始方法
EP2639337A2 (de) * 2012-03-15 2013-09-18 Bayer Intellectual Property GmbH Verfahren zur Elektrolyse von Alkalichloriden mit Sauerstoffverzehrelektroden
EP2639338A2 (de) * 2012-03-15 2013-09-18 Bayer Intellectual Property GmbH Verfahren zur Elektrolyse von Alkalichloriden mit Sauerstoffverzehrelektroden in Micro-Gap-Anordnung
EP2639339A2 (de) * 2012-03-15 2013-09-18 Bayer Intellectual Property GmbH Verfahren zur Elektrolyse von Alkalichloriden mit Sauerstoffverzehrelektroden, die Öffnungen aufweisen

Also Published As

Publication number Publication date
EP3899101A2 (de) 2021-10-27
WO2020127021A2 (de) 2020-06-25
EP3670706A1 (de) 2020-06-24
US20220056594A1 (en) 2022-02-24
KR20210103482A (ko) 2021-08-23
CN113166952A (zh) 2021-07-23
EP3670706B1 (de) 2024-02-21
CN113166952B (zh) 2023-05-23
JP2022510916A (ja) 2022-01-28

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