EP0953069B1 - Couvercle pour cellules electrolytiques - Google Patents

Couvercle pour cellules electrolytiques Download PDF

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Publication number
EP0953069B1
EP0953069B1 EP98902977A EP98902977A EP0953069B1 EP 0953069 B1 EP0953069 B1 EP 0953069B1 EP 98902977 A EP98902977 A EP 98902977A EP 98902977 A EP98902977 A EP 98902977A EP 0953069 B1 EP0953069 B1 EP 0953069B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
cover
lining
cover according
apparatus cover
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.)
Expired - Lifetime
Application number
EP98902977A
Other languages
German (de)
English (en)
Other versions
EP0953069A1 (fr
Inventor
Peter Clasen
Stefan Venghaus
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0953069A1 publication Critical patent/EP0953069A1/fr
Application granted granted Critical
Publication of EP0953069B1 publication Critical patent/EP0953069B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features

Definitions

  • the invention relates to corrosion-resistant apparatus covers, in particular cell covers for electrolytic cells, with an improved wall lining.
  • the proposed Liner that is easier to remove is particularly suitable for use new or used lids of electrolytic cells made using the amalgam process work.
  • a cover for an electrolysis cell is already known from EP-A 655 520, which is lined with titanium.
  • plastic films are also used to cover the cells (so-called “Membrane cover”).
  • the invention has for its object a device cover with corrosion-resistant Liner to create the disadvantages of the known constructions does not have, the lid with a more easily removable lining made of plastic or metal.
  • current feedthroughs for example, when using it as an electrolytic cell cover.
  • the object is achieved in that on prepared i.e. tailored, drilled or chamfered plastic plates the implementations for the Anodes are attached, e.g. by welding. After placing it on the steel cover the anode sleeves slip out of the holes by suitable Holding devices prevented, e.g. by holding plates or screw connections.
  • the invention relates to an apparatus cover with a corrosion-resistant lining and at least one electrical feedthrough, characterized in that that the lining is made of plastic and on the current lead-through with a cover wall protruding sleeve is firmly and gastight connected that the sleeve with a releasable fastener is fixed to the lid wall, and that the space between the current feedthrough and the sleeve using a releasable sealant is sealed, the feedthrough opposite the sleeve and the cover is electrically insulated.
  • An additional sealant running around the sleeve is preferred in the apparatus cover provided that prevents the escape of corrosive gases.
  • the fastening means for fastening the Sleeve on the cover a clamping ring which engages in a groove on the sleeve, or a Union nut which engages in a thread on the sleeve.
  • the sealant is on the feedthrough pulled down so far that it also leads through the interior of the Encloses sleeve and electrically insulated.
  • lining and the top wall Insulating layer made of a closed-pore polymer foam, in particular of polyurethane foam, e.g. in plate form.
  • the lining of the apparatus cover consists of plastic, in particular polyvinylidene fluoride (PVDF), polytetrafluoroethylene-co-hexafluoropropylene (FEP), perfluoroalkoxy polymers (PFA) or (PVC, PVC-HT).
  • PVDF polyvinylidene fluoride
  • FEP polytetrafluoroethylene-co-hexafluoropropylene
  • PFA perfluoroalkoxy polymers
  • PVC PVC, PVC-HT
  • the cell covers can be as described with plastics, e.g. PVDF, FEP, PFA, PVC.
  • the large area Lining plates and sleeves for anode feedthroughs can be placed under optimal conditions, e.g. by welding.
  • the Surface of the metal cell cover can be covered with an additional coating Corrosion protection. In particular come as a material for a coating DD lacquers or epoxy resins in question.
  • the lids can also be coated on all sides with a suitable coating as corrosion protection be provided.
  • the proposed detachable connections are particularly for cladding Metallic covers of electrolytic cells for the production of chlorine after Amalgam process suitable.
  • the invention also relates to the use of the apparatus cover according to the invention as a housing cover for electrolysers, especially for chlor-alkali electrolysis, e.g. B. after the amalgam process.
  • Fig. 1 shows a side view of an embodiment of the invention Apparatus cover.
  • Fig. 2 shows a detail corresponding to a section A-A 'in Figure 1 in the area of Sleeve 5 and the current feedthrough 12th
  • Fig. 3 shows an alternative detail according to a section A-A 'in Figure 1 in Area of sleeve 5.
  • Fig. 1 shows a segment of a lid of an electrolytic cell in which chlorine after Amalgam process is made, with a loose cover 2 made of plastic and a conventional anode bushing 12 through the lid 1.
  • the plate-shaped covering 2 e.g. made of PVDF, FEP, PVC
  • the sleeve 5 for the anode bushing 12 see FIG. 2
  • the Cell cover 1 placed on the liner 2 the sleeves 5 through holes 3 range in the top wall 1.
  • additional insulation 4 is provided as a barrier to harmful gases.
  • Fig. 2 shows a section through a sleeve 5 with anode bushing 12.
  • Brackets for example clamping rings 6 made of plastic or metal into a groove 13 in the sleeve 5 prevents the sleeves 5 from the holes 3 slide out in cover 1. Slipping out can alternatively z. B. also by a Screw connections 16, 17 can be prevented (see Fig. 3).
  • Sealing the Anodes 12 are made, for example, by means of a rubber washer 8, which with the Flange 9 and the screw connections 10 are pressed onto the upper edge of the sleeve 5 e.g. to seal the reaction space from the environment.
  • the further one Seal 7 is intended to prevent e.g. when cleaning the top of the lid Moisture gets between the lining 2 and the cell cover 1. To avoid of corrosion on the underside of the cover 1, this is with a suitable Provide corrosion protection 11.
  • Fig. 3 shows a section through a sleeve 5 with anode bushing 12, in which the Sleeve is fixed with the help of a union nut 17.
  • the rubber seal is pulled down in the inner region 15 of the sleeve 5 around the bushing 12 secure against a short circuit with the sleeve 5 if it is made of metal.

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 Metals (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Claims (9)

  1. Couvercle d'appareil avec revêtement (2) résistant à la corrosion et au moins une amenée de courant électrique (12), caractérisé en ce que le revêtement (2) consiste en une matière plastique et est relié de manière inamovible et étanche aux gaz, à l'amenée de courant (12) par un manchon (5) saillant de la paroi du couvercle (1), en ce que le manchon (5) est fixé à la paroi du couvercle (1) par un agent de fixation (6) amovible et en ce que l'espace entre l'amenée de courant (12) et le manchon (5) est rendu étanche à l'aide d'un agent d'étanchéité (8) amovible, l'amenée de courant (12) étant isolée de manière électrique du manchon (5) et du couvercle.
  2. Couvercle d'appareil suivant la revendication 1, caractérisé en ce que l'on prévoit un agent d'étanchéité (7) supplémentaire, entourant le manchon.
  3. Couvercle d'appareil suivant les revendications 1 à 2, caractérisé en ce que l'agent de fixation (6) est un anneau de serrage, qui s'engage dans une rainure (13) sur le manchon (5).
  4. Couvercle d'appareil suivant les revendications 1 à 2, caractérisé en ce que l'agent de fixation (6) est un écrou-raccord (16), qui mord dans un filet (17) sur le manchon (5).
  5. Couvercle d'appareil suivant les revendications 1 à 4, caractérisé en ce que l'agent d'étanchéité (8) entoure l'amenée de courant (12), également dans la partie interne (15) du manchon et l'isole de manière électrique.
  6. Couvercle d'appareil suivant les revendications 1 à 5, caractérisé en ce qu'on prévoit entre le revêtement (2) et la paroi de couvercle (1), une couche supplémentaire d'isolant (4) en mousse de polymère à pores fermés, en particulier une mousse de polyuréthanne.
  7. Couvercle d'appareil suivant les revendications 1 à 6, caractérisé en ce que le revêtement (2) consiste en une matière plastique parmi le série des PVDF, FEP, PFA ou PVC.
  8. Couvercle d'appareil suivant les revendications 1 à 7, caractérisé en ce que la face inférieure du couvercle (1) est munie d'une couche supplémentaire (11) de protection contre la corrosion.
  9. Utilisation du couvercle d'appareil suivant l'une quelconque des revendications 1 à 8, comme couvercle de boitier pour électrolyseur, en particulier pour l'électrolyse à l'alcali et chlore, par exemple selon le procédé par amalgame.
EP98902977A 1997-01-10 1998-01-03 Couvercle pour cellules electrolytiques Expired - Lifetime EP0953069B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19700534A DE19700534A1 (de) 1997-01-10 1997-01-10 Zellendeckel für Elektrolysezellen
DE19700534 1997-01-10
PCT/EP1998/000018 WO1998030737A1 (fr) 1997-01-10 1998-01-03 Couvercle pour cellules electrolytiques

Publications (2)

Publication Number Publication Date
EP0953069A1 EP0953069A1 (fr) 1999-11-03
EP0953069B1 true EP0953069B1 (fr) 2001-11-07

Family

ID=7817050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98902977A Expired - Lifetime EP0953069B1 (fr) 1997-01-10 1998-01-03 Couvercle pour cellules electrolytiques

Country Status (10)

Country Link
US (1) US6200438B1 (fr)
EP (1) EP0953069B1 (fr)
JP (1) JP2001508127A (fr)
AU (1) AU5986398A (fr)
BR (1) BR9807470A (fr)
CA (1) CA2277435A1 (fr)
DE (2) DE19700534A1 (fr)
ES (1) ES2167063T3 (fr)
RU (1) RU2199611C2 (fr)
WO (1) WO1998030737A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2664280C (fr) * 2006-10-18 2012-06-12 Alcoa Inc. Boitiers a electrode et procedes associes
JP2023502203A (ja) * 2019-11-13 2023-01-23 トプソー・アクチエゼルスカベット 炭化水素流のためのハロゲン化物除去洗浄システム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA860308A (en) * 1971-01-05 Schucker Josef Electrolytic cell
NL133391C (fr) * 1964-08-31
IN142921B (fr) 1973-08-09 1977-09-10 Uhde Gmbh Friedrich
US4087343A (en) * 1977-02-23 1978-05-02 The Goodyear Tire & Rubber Company Flexible cover of a platy-filled composition for an electrolytic cell
IT1164996B (it) * 1979-03-06 1987-04-22 Pirelli Coperchio per celle elettrolitiche
US4443315A (en) * 1980-07-03 1984-04-17 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Finger type electrolytic cell for the electrolysis of an aqueous alkali metal chloride solution
JPH021072U (fr) * 1988-06-09 1990-01-08
SE512758C2 (sv) 1993-11-26 2000-05-08 Permascand Ab Förfarande och anordning för korrosionsskydd av cellock till elektrokemiska celler

Also Published As

Publication number Publication date
CA2277435A1 (fr) 1998-07-16
DE19700534A1 (de) 1998-07-16
EP0953069A1 (fr) 1999-11-03
BR9807470A (pt) 2000-05-02
WO1998030737A1 (fr) 1998-07-16
AU5986398A (en) 1998-08-03
RU2199611C2 (ru) 2003-02-27
ES2167063T3 (es) 2002-05-01
US6200438B1 (en) 2001-03-13
JP2001508127A (ja) 2001-06-19
DE59802055D1 (de) 2001-12-13

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