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WO2003082749A1 - Composition electrolytique pour l'electrolyse de la saumure, procede d'electrolyse de la saumure et hydroxyde de sodium prepare a partir de celui-ci - Google Patents

Composition electrolytique pour l'electrolyse de la saumure, procede d'electrolyse de la saumure et hydroxyde de sodium prepare a partir de celui-ci Download PDF

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Publication number
WO2003082749A1
WO2003082749A1 PCT/KR2002/001004 KR0201004W WO03082749A1 WO 2003082749 A1 WO2003082749 A1 WO 2003082749A1 KR 0201004 W KR0201004 W KR 0201004W WO 03082749 A1 WO03082749 A1 WO 03082749A1
Authority
WO
WIPO (PCT)
Prior art keywords
brine
electrolysis
aqueous solution
platinum compound
chamber
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.)
Ceased
Application number
PCT/KR2002/001004
Other languages
English (en)
Inventor
Dae-Sik Kim
Hyung-Kwan Kim
Hyung-Mog Kim
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.)
Hanwha Chemical Corp
Original Assignee
Hanwha Chemical Corp
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=36782465&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2003082749(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hanwha Chemical Corp filed Critical Hanwha Chemical Corp
Priority to JP2003580224A priority Critical patent/JP2005520049A/ja
Priority to EP02730968A priority patent/EP1487747B1/fr
Priority to DE60213671T priority patent/DE60213671T2/de
Priority to AU2002303008A priority patent/AU2002303008A1/en
Priority to US10/487,471 priority patent/US20040238373A1/en
Publication of WO2003082749A1 publication Critical patent/WO2003082749A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C25B1/14—Alkali metal compounds
    • C25B1/16—Hydroxides
    • 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

Definitions

  • the present invention relates to an electrolyte composition for
  • NaOH sodium hydroxide
  • Methods for preparing sodium hydroxide include a Leblanc process that prepares sodium hydroxide by adding sulfuric acid to crude salt to cause
  • thermolysis an ammonia soda process that prepares sodium hydroxide by
  • the electrolysis process is the most widely used, and it includes a diaphragm process, a mercury process, and an ion-exchange membrane process.
  • a diaphragm process prepares sodium hydroxide by installing a
  • diaphragm made of asbestos between a graphite anode and an iron cathode
  • ion-exchange membrane is installed inside an electrolytic cell to divide the
  • electrolytic cell into a cation chamber and an anion chamber with brine as an
  • Fig. 3 is a cross-sectional view of an apparatus for electrolysis of
  • electrolytic cell (1 1 ) is comprised of a cation chamber (12) and an anion
  • anion chamber (13) is installed therebetween.
  • brine is injected through a brine injection
  • the cation chamber (12) and the anion chamber (13) are respectively
  • anode plate (25) and a cathode plate (26).
  • Fig. 1 shows a chemical equation involved in electrolysis of brine by
  • the electrode plate surface is previously coated or plated with
  • the ion-exchange membrane is
  • Electrode plate are removed and compounds such as AuCI 3 , RuCI 3 , lrCI 3 , etc.
  • the present invention is made in order to solve the problems of the prior arts, and it is an object of the present invention to provide an electrolyte composition for electrolysis of brine comprising an aqueous solution of a
  • brine comprising an aqueous solution of a platinum compound into an
  • electrolytic cell to prepare sodium hydroxide. It is another object of the present invention to provide sodium
  • the present invention provides an
  • electrolyte composition for electrolysis of brine comprising an aqueous
  • the present invention also provides a method for electrolysis of brine
  • the present invention also provides sodium hydroxide prepared by
  • the present invention also provides an apparatus for electrolysis of
  • brine comprising a cation chamber and an anion chamber divided by a
  • cathode plate equipped in the cation chamber and the anion chamber; a brine injection tube connected to the cation chamber; a pure water injection
  • Fig. 1 shows a Chemical Equation involved in electrolysis of brine by
  • Fig. 2 shows a Chemical Equation involved in the electrolysis of brine of the present invention.
  • Fig. 3 is a cross-sectional view of an apparatus for electrolysis of brine
  • Fig. 4 is a cross-sectional view of the apparatus for electrolysis of brine of the present invention.
  • Fig. 5 shows operating voltages of the electrolytic cells of Example 6
  • the platinum compound is preferably selected
  • Fig. 2 shows a chemical equation of electrolysis of brine
  • Saturated brine is injected into a cation chamber, and pure water and a
  • platinum compound aqueous solution are injected into an anion chamber.
  • the liquid mixture of the pure water and the platinum compound aqueous solution is referred to as an electrolytic composition for
  • aqueous solution move to a cathode plate surface.
  • Platinum ions have superior electrical conductivity and corrosion resistance for strong alkali.
  • a cathode plate plated with platinum ions has comparatively low
  • aqueous solution are preferably 0.1 to 10 wt%. If the contents are less than
  • comprising an aqueous solution of the platinum compound is preferably 0.1 to
  • sodium hydroxide will be small, and if the amount is more than 0.2 liter,
  • the method for electrolysis of brine of the present invention which comprises injecting brine and pure water respectively into a cation chamber
  • Fig. 4 is a cross-
  • an electrolytic cell (111) is composed of a cation
  • anion chamber (113), an anode plate (125) and a cathode plate (126) are
  • brine is injected through a brine injection
  • waste brine that remains after reaction and chlorine gas produced during electrolysis are stored in a cation chamber discharge tank (117) after
  • the method for electrolysis of the present invention is characterized by mixing an aqueous solution of a platinum compound with pure water and
  • aqueous solution of the platinum compound is injected through another injection tube of an electrolytic cell or through a platinum compound aqueous solution injection tube connecting with another injection tube, the
  • cathode plate (126) surface is not coated therewith.
  • the platinum compound is preferably selected from a group
  • hexahydroxoplatinate (IV) (H 2 Pt(OH) 6 is most preferable because it is separated into platinum ions, hydrogen ions, and hydroxide ions in an aqueous solution.
  • Fig. 2 shows a chemical equation involved in electrolysis of brine by injecting hydrogen hexahydroxoplatinate (IV) into an electrolytic cell.
  • aqueous solution move to a cathode plate surface by electrodeposition.
  • aqueous solution are preferably 0.1 to 10 wt%. If the contents are less than
  • comprising an aqueous solution of the platinum compound is preferably 0.1 to
  • sodium hydroxide will be small, and if the amount is more than 0.2 liter,
  • the present invention also provides sodium hydroxide prepared by
  • the present invention also provides an apparatus for electrolysis of
  • brine comprising a cation chamber and an anion chamber divided by a
  • electrolytic cell can be reduced, and thus sodium hydroxide can be
  • the total amount of injected pure water was 10 liters, and that of the
  • hexachloroplatinate (IV) aqueous solution was 1 liter.
  • a sodium hydroxide aqueous solution was prepared by the same
  • a sodium hydroxide aqueous solution was prepared by the same
  • a sodium hydroxide aqueous solution was prepared by the same
  • a sodium hydroxide aqueous solution was prepared by the same
  • a sodium hydroxide aqueous solution was prepared by the same method as in Example 1 , except that hydrogen hexahydroxoplatinate (IV) (H 2 Pt(OH) 6 ) was used as a platinum compound.
  • a sodium hydroxide aqueous solution was prepared by the same
  • a sodium hydroxide aqueous solution was prepared by the same
  • a sodium hydroxide aqueous solution was prepared by the same
  • a sodium hydroxide aqueous solution was prepared by the same method as in Example 1 , except that 20 g of lrCI 3 was dissolved in 1 liter of
  • Fig. 5 shows the operating voltages of the electrolytic cells of
  • Example 6 and Comparative Examples 1 to 3 with the lapse of operation time were all set to 6.65 V.
  • brine is electrolyzed using the electrolyte composition for electrolysis of brine comprising a platinum compound aqueous solution and a
  • the electrolysis process is efficient and the cost required for maintenance and repair of an electrolytic cell can be reduced and sodium hydroxide can be

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (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)

Abstract

L'invention concerne une composition électrolytique pour l'électrolyse de la saumure, un procédé d'électrolyse de la saumure et de l'hydroxyde de sodium préparé à partir dudit procédé. L'invention porte notamment sur une composition électrolytique pour l'électrolyse de la saumure, et sur un procédé d'électrolyse de la saumure consistant à injecter respectivement, par un tube d'injection d'eau pure, la saumure et de l'eau pure dans une chambre à cations et une chambre à anions divisées par une membrane de séparation installée dans une cellule électrolytique, et à appliquer une source d'énergie sur une plaque anode et une plaque cathode installées dans la chambre à cations et la chambre à anions en vue de la séparation du chlorure gazeux, de l'hydrogène gazeux et d'une solution aqueuse d'hydroxyde de sodium produits. Le procédé se caractérise en ce qu'une solution aqueuse d'un composé de platine est injectée dans la chambre à anions par le tube d'injection d'eau pure. L'invention porte également sur l'hydroxyde de sodium préparé selon ledit procédé.
PCT/KR2002/001004 2002-03-28 2002-05-28 Composition electrolytique pour l'electrolyse de la saumure, procede d'electrolyse de la saumure et hydroxyde de sodium prepare a partir de celui-ci Ceased WO2003082749A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2003580224A JP2005520049A (ja) 2002-03-28 2002-05-28 塩水の電気分解用電解液組成物、塩水の電気分解方法及びこれより製造された苛性ソーダ
EP02730968A EP1487747B1 (fr) 2002-03-28 2002-05-28 Utilisation d'une composition electrolytique pour l'electrolyse de la saumure, procede d'electrolyse de la saumure et de preparation d'hydroxyde de sodium
DE60213671T DE60213671T2 (de) 2002-03-28 2002-05-28 Verwendung einer elektrolytzusammensetzung zur elektrolyse von kochsalzlösung, verfahren zur elektrolyse von kochsalzlösung und zur herstellung von natriumhydroxid
AU2002303008A AU2002303008A1 (en) 2002-03-28 2002-05-28 Electrolyte composition for electrolysis of brine, method for electrolysis of brine, and sodium hydroxide prepared therefrom
US10/487,471 US20040238373A1 (en) 2002-03-28 2002-05-28 Electrolyte composition for electrolysis of brine, method for electrolysis of brine, and sodium hydroxide prepared therefrom

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020020016970A KR100363011B1 (en) 2002-03-28 2002-03-28 Electrolyte composition for electrolysis of brine and electrolysis method of brine using the same
KR2002/16970 2002-03-28
KR2002/18673 2002-04-04
KR1020020018673A KR100363012B1 (en) 2002-03-28 2002-04-04 Electrolysis method of brine and caustic soda prepared therefrom

Publications (1)

Publication Number Publication Date
WO2003082749A1 true WO2003082749A1 (fr) 2003-10-09

Family

ID=36782465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2002/001004 Ceased WO2003082749A1 (fr) 2002-03-28 2002-05-28 Composition electrolytique pour l'electrolyse de la saumure, procede d'electrolyse de la saumure et hydroxyde de sodium prepare a partir de celui-ci

Country Status (9)

Country Link
US (1) US20040238373A1 (fr)
EP (1) EP1487747B1 (fr)
JP (1) JP2005520049A (fr)
KR (2) KR100363011B1 (fr)
CN (1) CN1309871C (fr)
AT (1) ATE334944T1 (fr)
AU (1) AU2002303008A1 (fr)
DE (1) DE60213671T2 (fr)
WO (1) WO2003082749A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9273403B2 (en) 2007-01-24 2016-03-01 Covestro Deutschland Ag Method for improving the performance of nickel electrodes

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2751454C (fr) * 2009-02-03 2013-08-06 Purdue Research Foundation Procede et appareil d'amelioration d'hypoxicite locale pour une therapie amelioree
GB201100447D0 (en) * 2011-01-12 2011-02-23 Johnson Matthey Plc Improvements in coating technology
GB201200482D0 (en) * 2012-01-12 2012-02-22 Johnson Matthey Plc Improvements in coating technology
US9293269B2 (en) * 2012-02-08 2016-03-22 Dais Analytic Corporation Ultracapacitor tolerating electric field of sufficient strength
FR3058165B1 (fr) * 2016-10-27 2018-12-14 Safran Aircraft Engines Procede et dispositif de regeneration de bain de platine
US10815578B2 (en) 2017-09-08 2020-10-27 Electrode Solutions, LLC Catalyzed cushion layer in a multi-layer electrode
HUE057761T2 (hu) 2018-07-20 2022-06-28 Covestro Deutschland Ag Eljárás nikkel elektródok teljesítményének javítására
KR102767378B1 (ko) 2024-08-26 2025-02-14 (주)피엠아이바이오텍 수산부산물을 활용한 탄산칼슘, 소석회, 액상소석회 및 차염소산나트륨의 제조방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250691A (en) * 1962-05-28 1966-05-10 Pittsburgh Plate Glass Co Electrolytic process of decomposing an alkali metal chloride
US3491014A (en) * 1969-01-16 1970-01-20 Oronzio De Nora Impianti Composite anodes
US4076603A (en) * 1977-04-07 1978-02-28 Kaiser Aluminum & Chemical Corporation Caustic and chlorine production process
DE4438275A1 (de) * 1993-10-27 1995-05-11 Permelec Electrode Ltd Elektrolyse einer Salzlösung und dafür geeignete Elektrolysezelle
US5935393A (en) * 1996-08-29 1999-08-10 Chlorine Engineers Corp. Ltd. Apparatus for producing hypochlorite

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
CN1012970B (zh) * 1987-06-29 1991-06-26 耐用电极株式会社 用于电解的阴极及其制备方法
CN2139583Y (zh) * 1992-06-20 1993-08-04 王汝坦 立式隔膜食盐水电解槽
CN1045319C (zh) * 1994-03-03 1999-09-29 湖南化学工业设计院 全卤水电解制氢氧化钠的方法
US5948222A (en) * 1995-05-01 1999-09-07 Occidental Chemical Corporation Reactivation of deactivated anodes
US6160163A (en) * 1999-02-16 2000-12-12 Eastman Chemical Company Method for the vapor-phase carbonylation of lower aliphatic alcohols using a supported platinum catalyst and halide promoter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250691A (en) * 1962-05-28 1966-05-10 Pittsburgh Plate Glass Co Electrolytic process of decomposing an alkali metal chloride
US3491014A (en) * 1969-01-16 1970-01-20 Oronzio De Nora Impianti Composite anodes
US4076603A (en) * 1977-04-07 1978-02-28 Kaiser Aluminum & Chemical Corporation Caustic and chlorine production process
DE4438275A1 (de) * 1993-10-27 1995-05-11 Permelec Electrode Ltd Elektrolyse einer Salzlösung und dafür geeignete Elektrolysezelle
US5935393A (en) * 1996-08-29 1999-08-10 Chlorine Engineers Corp. Ltd. Apparatus for producing hypochlorite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9273403B2 (en) 2007-01-24 2016-03-01 Covestro Deutschland Ag Method for improving the performance of nickel electrodes

Also Published As

Publication number Publication date
KR100363011B1 (en) 2002-11-30
EP1487747A1 (fr) 2004-12-22
CN1547557A (zh) 2004-11-17
DE60213671T2 (de) 2007-10-04
AU2002303008A1 (en) 2003-10-13
DE60213671D1 (de) 2006-09-14
CN1309871C (zh) 2007-04-11
EP1487747B1 (fr) 2006-08-02
KR100363012B1 (en) 2002-11-30
US20040238373A1 (en) 2004-12-02
JP2005520049A (ja) 2005-07-07
ATE334944T1 (de) 2006-08-15

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