WO1982003231A1 - Elements constructifs de cellules d'electrolyse - Google Patents

Elements constructifs de cellules d'electrolyse Download PDF

Info

Publication number
WO1982003231A1
WO1982003231A1 PCT/CH1982/000042 CH8200042W WO8203231A1 WO 1982003231 A1 WO1982003231 A1 WO 1982003231A1 CH 8200042 W CH8200042 W CH 8200042W WO 8203231 A1 WO8203231 A1 WO 8203231A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
cells according
electrochemical
base body
oxide layer
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/CH1982/000042
Other languages
German (de)
English (en)
Inventor
Horlogerie Rech Lab Suisse
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU82042/82A priority Critical patent/AU8204282A/en
Publication of WO1982003231A1 publication Critical patent/WO1982003231A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material
    • C25B13/05—Diaphragms; Spacing elements characterised by the material based on inorganic materials
    • C25B13/07—Diaphragms; Spacing elements characterised by the material based on inorganic materials based on ceramics

Definitions

  • the separator must be sufficiently thin and porous to increase the electrical resistance of the cell as little as possible, be corrosion-resistant to the highly concentrated potassium hydroxide solution, and have sufficient mechanical properties to be easily installed in an industrial cell.
  • Other examples are electrodes, which should be insulating in certain places, the walls of cells which are exposed to the interface between the electrolytes and the gas phase, or the passage of the electrodes through the cell walls.
  • the invention described here is therefore a component of an electrochemical electrolysis cell, which consists of a metallic base material, which is either directly coated with a thin oxide layer, or which still has a suitable intermediate layer between the oxide layer and the base material.
  • a separator for an electrolysis cell consists of a fine-meshed network of steel wire with a mesh size of -30 ⁇ m, which was covered with a 2 ⁇ m thick layer of TiO 2 using the CVD process and then treated at elevated temperature in concentrated potassium hydroxide solution .
  • the component thus obtained is corrosion-resistant, flexible and can easily be installed in an electrolysis cell.
  • a separator for an electrolysis cell consists of a fine-mesh network made of austenitic steel, which was first provided with a 1 ⁇ m thick TiN layer and then with a 1 ⁇ m thick Al 2 O 3 layer using the CVD process.
  • Example 3 A separator for an electrolysis cell consists of a felt made of rustproof, ferritic steel, which in its entire volume is first of all coated with a 0.5 ⁇ m to 1 ⁇ m thick layer of TiC using the CVD process and then with a 1 ⁇ m layer thick layer of Al 2 O 3 was coated.
  • Example 4 An electrode holder that is exposed to both the electrolyte and the corrosive gases in the cell consists of a ferritic, stainless steel, which is initially coated with a 2 ⁇ m thick TiC layer and then with a 1 ⁇ m thick Al 2 O 3 Layer was provided using the CVD process.
  • the insulating, ceramic layers can consist not only of Al 2 O 3 or TiO 2 but also of other ceramic materials, such as zirconium oxide, zirconates, titanates and similar substances.
  • the intermediate layer can consist of carbides, nitrides or borides of the elements Ti, Zr, Nb, Te or the like.
  • CVD process is particularly suitable for the application of the layers, other processes, e.g. Plasma spraying, flame spraying and the like are used.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

Les elements constructifs destines a la fabrication de cellules d'electrolyse, sont electriquement isolants, resistants aux produits chimiques contenus dans les cellules et presentent une solidite et une flexibilite leur permettant d'etre utilises dans des cellules d'electrolyse industrielle. Les elements constructifs sont remarquables en ce qu'ils sont constitues par un corps de base metallique revetu d'une mince couche d'oxyde. Entre la couche d'oxyde et le corps de base peut etre disposee une couche intermediaire. Les elements constructifs peuvent constituer des separateurs, des porte-electrodes, des parois etc...
PCT/CH1982/000042 1981-03-20 1982-03-19 Elements constructifs de cellules d'electrolyse Ceased WO1982003231A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU82042/82A AU8204282A (en) 1981-03-20 1982-03-19 Constructive elements of electrolysis cells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH188881 1981-03-20
CH1888/81810320 1981-03-20

Publications (1)

Publication Number Publication Date
WO1982003231A1 true WO1982003231A1 (fr) 1982-09-30

Family

ID=4220940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1982/000042 Ceased WO1982003231A1 (fr) 1981-03-20 1982-03-19 Elements constructifs de cellules d'electrolyse

Country Status (2)

Country Link
EP (1) EP0074963A1 (fr)
WO (1) WO1982003231A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046723A1 (fr) * 1999-04-19 2000-10-25 Sumitomo Metal Industries, Ltd. Produit en acier inoxydable pour la production de pile à combustible avec les electrodes polymères
US6884363B2 (en) 2000-11-10 2005-04-26 Honda Giken Kogyo Kabushiki Kaisha Method of surface treatment for stainless steel product for fuel cell

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1255946A (fr) * 1958-10-29 1961-03-17 Amalgamated Curacao Patents Co Diaphragme d'électrolyse
US3222265A (en) * 1958-10-29 1965-12-07 Amalgamated Curacao Patents Co Electrolysis method and apparatus employing a novel diaphragm
US3248311A (en) * 1962-03-29 1966-04-26 Ethyl Corp Manufacture of sodium
FR2067802A5 (en) * 1969-11-18 1971-08-20 Paris Rene Metal boride electrodes
US4119503A (en) * 1977-07-15 1978-10-10 Oronzio De Nora Impianti Elettrochimici S.P.A. Two layer ceramic membranes and their uses
US4157943A (en) * 1978-07-14 1979-06-12 The International Nickel Company, Inc. Composite electrode for electrolytic processes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1255946A (fr) * 1958-10-29 1961-03-17 Amalgamated Curacao Patents Co Diaphragme d'électrolyse
US3222265A (en) * 1958-10-29 1965-12-07 Amalgamated Curacao Patents Co Electrolysis method and apparatus employing a novel diaphragm
US3248311A (en) * 1962-03-29 1966-04-26 Ethyl Corp Manufacture of sodium
FR2067802A5 (en) * 1969-11-18 1971-08-20 Paris Rene Metal boride electrodes
US4119503A (en) * 1977-07-15 1978-10-10 Oronzio De Nora Impianti Elettrochimici S.P.A. Two layer ceramic membranes and their uses
US4157943A (en) * 1978-07-14 1979-06-12 The International Nickel Company, Inc. Composite electrode for electrolytic processes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046723A1 (fr) * 1999-04-19 2000-10-25 Sumitomo Metal Industries, Ltd. Produit en acier inoxydable pour la production de pile à combustible avec les electrodes polymères
US6379476B1 (en) 1999-04-19 2002-04-30 Sumitomo Metal Industries, Ltd. Stainless steel product for producing polymer electrode fuel cell
US6884363B2 (en) 2000-11-10 2005-04-26 Honda Giken Kogyo Kabushiki Kaisha Method of surface treatment for stainless steel product for fuel cell
DE10194846B4 (de) * 2000-11-10 2008-02-28 Honda Giken Kogyo K.K. Verfahren zur Oberflächenbehandlung eines rostfreien Stahlprodukts für eine Brennstoffzelle

Also Published As

Publication number Publication date
EP0074963A1 (fr) 1983-03-30

Similar Documents

Publication Publication Date Title
DE69707320T2 (de) Verfahren zur Elektrolyse von wässrigen Lösungen von Salzsäure
DE69016459T2 (de) Elektrochemischer chlordioxidgenerator.
DE19948184C2 (de) Elektrochemische Herstellung von Peroxo-dischwefelsäure unter Einsatz von diamantbeschichteten Elektroden
DE2403573C2 (de) Verfahren zur Herstellung von Anoden
DE1252643B (de) Diaphragmenzelle zur Erzeugung von Chlor und Atzkali durch Elek trolyse einer Alkalimetallchloridlosung
EP0168600B1 (fr) Electrolyseur bipolaire avec cathode à diffusion de gaz
US3809630A (en) Electrolysis cell with permeable valve metal anode and diaphragms on both the anode and cathode
DE2405010A1 (de) Elektrode fuer elektrochemische prozesse
DE2735237A1 (de) Bipolare einheit fuer eine elektrolysezelle
DE2651948A1 (de) Verfahren zum elektrolysieren einer waessrigen alkalichloridloesung
US3423300A (en) Electrolytic regeneration of reduced chromium compounds
DE2545339A1 (de) Bipolare elektrolysezellen
DE2652152A1 (de) Elektrode fuer elektrolytische reaktionen und verfahren zu deren herstellung
DE3001614A1 (de) Verfahren zum elektrolytischen zersetzen von chlorwasserstoffsaeure in einer elektrolysiervorrichtung
EP0384194B1 (fr) Anodes dimensionnellement stables et leur utilisation pour la production de dichromates alcalins et d'acide chromique
WO1982003231A1 (fr) Elements constructifs de cellules d'electrolyse
DE2821978A1 (de) Anodenelement fuer monopolare, filterpressenartig angeordnete elektrolysezellen
DE2819964C2 (de) Metallisches Diaphragma
DE2710670B2 (de) Verfahren zum Elektrolysieren unter Verwendung einer Hilfselektrode im ZeIlflüssigkeitssammelbehälter zur Verhinderung von Korrosion
DE1244749B (de) Verfahren und Vorrichtung zur unmittelbaren und gleichzeitigen Herstellung von anorganischen Alkalisalzen und von Chlorgas
WO2005038090A2 (fr) Unite structurelle pour electrolyseurs bipolaires
DE2653536B2 (de) Bipolare Elektrolysiereinrichtung mit einer Elektrolytausgleichseinrichtung
DE2756569C3 (de) Verfahren und Elektrolysezelle zur Erzeugung von Wasserstoff und Sauerstoff
US825057A (en) Method of making sulfuric acid.
GB2108529A (en) Electrochemically decomposing nitric acid

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): AU JP NO US

AL Designated countries for regional patents

Designated state(s): AT BE CH DE FR GB LU NL SE