EP2576869A1 - Electrode for electrolysis cells - Google Patents
Electrode for electrolysis cellsInfo
- Publication number
- EP2576869A1 EP2576869A1 EP11738600.3A EP11738600A EP2576869A1 EP 2576869 A1 EP2576869 A1 EP 2576869A1 EP 11738600 A EP11738600 A EP 11738600A EP 2576869 A1 EP2576869 A1 EP 2576869A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- openings
- electrode
- flat
- lamellar elements
- elements
- 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.)
- Pending
Links
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 18
- 210000001015 abdomen Anatomy 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000001311 chemical methods and process Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 241000446313 Lamella Species 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 description 11
- 239000003014 ion exchange membrane Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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
- 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
-
- 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
-
- 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
- C25B1/24—Halogens or compounds thereof
-
- 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
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
Definitions
- the invention relates to an electrode and a method for gas-generating electro-chemical processes, which in the installed state of a
- Ion exchange membrane is arranged parallel opposite one another, consisting of a plurality of horizontal lamellar elements which consist of a flat c-section of a flat belly part and one or more flank parts, and between the flat belly part and the one or more other flank parts one or more arbitrarily shaped transition areas are arranged, wherein the
- Lamella elements have a plurality of through openings.
- Electrolysis apparatus can be used. These electrodes are known inter alia from DE 198 16 334 A1 of the applicant. Herein, an electrolyzer for producing halogen gases from aqueous alkali halide solutions will be described. Since the flow conditions in the production of gas in the electrolyte are adversely affected by the resulting product gas in the membrane electrode area, it is proposed in DE 198 16 334 A1 to incorporate the louvered single ribs of the electrode inclined to the horizontal. This causes a laterally directed flow in the cell, since the gas bubbles located under the individual lamella follow the constructive opening upwards.
- DE 44 15 146 A1 proposes to provide holes or bores in the downwardly directed fin part and thus the
- CONFIRMATION COPY still remains in the vicinity of the contact point and the obstructed there flow of the electrolyte.
- Lamellar elements which in turn are structured and shaped in three dimensions and with a partial surface in direct contact with the membrane, wherein the
- Slats elements have grooves and holes, and wherein the plurality of holes are arranged in grooves, and wherein the hole surfaces are wholly or partially in the grooves or protrude into this.
- the disadvantage is that the groove arrangement, a surface is formed which has constructive elevations and depressions, which leads to a disadvantageous gas stagnation and thereby due to an uneven
- the problem is solved by the use of the electrode of an electrolytic cell for gas-generating electro-chemical processes.
- the electrode comprises a plurality of horizontal lamellar elements, which in the nature of a flat C-profile consist of a flat belly part and one or more flank parts, and between the flat belly part and the one or more
- Flank parts are arranged one or more arbitrarily shaped transition regions, wherein the lamellar elements have a plurality of through openings and a flat surface without constructive elevations and depressions, and wherein the flat waist portion has a plurality of in-line through holes arranged diagonally to each other.
- the present invention differs from a continuous one
- Perforated plate as proposed, for example, in DE 69600860 T2, in DE 243256 A1, and DE 2630883 A1, in that the electrode is composed of a multiplicity of lamellar elements which are shaped in three dimensions by deliberate stretching by cold deformation. This bend will make the
- the area of the abdominal part is optimally utilized to accommodate the largest possible number of openings and thus to further reduce gas stagnation.
- the flank parts are provided with through openings.
- ion exchange membrane arranged when the electrode is installed in an electrolytic cell. This arrangement serves the purpose of supplying the ion exchange membrane with electrolyte during operation of the electrolytic cell, as well as ensuring gas discharge.
- the through openings are formed as punched holes.
- these openings may have any geometric shape, with openings with a round cross section are preferred.
- the lamellar elements at round through openings to a plate thickness which is smaller than the hole diameter or have the lamellar elements in non-round through openings to a plate thickness which is smaller than the hydraulic cross section.
- Electrode is the one or more other flank parts in the installed state in an electrolytic cell at an angle of at least 10 degrees angle away from the membrane, the transition areas are advantageously formed as a rounded edge.
- the distance between the individual horizontally arranged Lammellen shame in C-profile with each other 0 to 5 mm, preferably 0 to 2 mm and more preferably 0 mm.
- the process is optimized, since about 6 to 10% of the membrane surface are recovered and are available for the actual electrolysis process.
- the electrolysis process which is the subject of the present invention is characterized by the use of a planar electrode as described above.
- Fig. 1 A plan view of a fin element according to the invention in
- Fig. 1 shows a lamellar element 1 in the embodiment of a flat C-profile.
- the folded back flanks 2 and 3 are kept very short in relation to the flat belly part 8, which is designed to be many times wider. Between the flanks 2 and 3 and the belly part 8 are the transition areas 4a and 4b.
- the lamellar element 1 has in the flat abdominal region 8 arranged in rows holes 5, wherein these rows of holes are arranged parallel to each other and the
- Openings are arranged from one row of holes to the next diagonally to each other.
- the available area of the abdominal part 8 can be used most effectively for the electrolysis.
- a significant advantage of this embodiment is that the belly part 8 is arranged in the installed state plane-parallel to the membrane 7, in which the electrochemical reaction can proceed.
- the membrane 7 is supplied via the holes 5 with brine or brine.
- the cell voltage of an electrolytic cell was determined using an electrode which was constructed from a C-profile-like configuration of the lamellar elements of the present invention.
- the cell voltage of an electrolytic cell was determined using an electrode which was constructed from a C-profile-like configuration of the lamellar elements of the present invention.
- Cell voltage of an electrolytic cell using an electrode which consists of a C-profile-like embodiment of the invention disclosed in DE 102005006555 A1 invention, which differs in that the holes provided are arranged in grooves and the surface of the lamellar elements thus constructive elevations and
- the experiment used C-profiles had 11 x 62 holes, which in the case of inventive design were arranged in rows of holes which are arranged diagonally to each other.
- the hole diameter was 1, 5 mm and the height of the C-profile was 23 mm.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010021833A DE102010021833A1 (en) | 2010-05-28 | 2010-05-28 | Electrode for electrolysis cell |
PCT/EP2011/002552 WO2011147557A1 (en) | 2010-05-28 | 2011-05-23 | Electrode for electrolysis cells |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2576869A1 true EP2576869A1 (en) | 2013-04-10 |
Family
ID=44474965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11738600.3A Pending EP2576869A1 (en) | 2010-05-28 | 2011-05-23 | Electrode for electrolysis cells |
Country Status (10)
Country | Link |
---|---|
US (1) | US11162178B2 (en) |
EP (1) | EP2576869A1 (en) |
JP (1) | JP6353226B2 (en) |
KR (2) | KR20130079448A (en) |
CN (1) | CN102906310A (en) |
BR (1) | BR112012030076B1 (en) |
CA (1) | CA2800845C (en) |
DE (1) | DE102010021833A1 (en) |
RU (1) | RU2576318C2 (en) |
WO (1) | WO2011147557A1 (en) |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB719838A (en) * | 1951-07-28 | 1954-12-08 | Bamag Meguin Ag | Improvements in or relating to electrodes for electrolytic cells |
DE2245926A1 (en) * | 1971-09-22 | 1973-04-19 | Oronzio De Nora Impianti | HORIZONTAL, PLANAR, BIPOLAR DIAPHRAGM CELLS |
US4059500A (en) * | 1975-04-14 | 1977-11-22 | Georgy Mikirtychevich Kamarian | Electrode unit |
GB1579427A (en) * | 1976-08-04 | 1980-11-19 | Ici Ltd | Electrodes for electrolytic cells |
US4265719A (en) * | 1980-03-26 | 1981-05-05 | The Dow Chemical Company | Electrolysis of aqueous solutions of alkali-metal halides employing a flexible polymeric hydraulically-impermeable membrane disposed against a roughened surface cathode |
JPS5883466U (en) * | 1981-11-27 | 1983-06-06 | ペルメレツク電極株式会社 | Electrolyte using ion exchange membrane |
US4421609A (en) * | 1979-07-16 | 1983-12-20 | Compagnie Generale Des Etablissements Michelin | Process for producing electrode with current outlets |
GB2180556A (en) * | 1985-07-29 | 1987-04-01 | Permelec Electrode Ltd | Apertured electrode for electrolysis |
DE3603254A1 (en) * | 1986-02-03 | 1987-08-06 | Ht Hydrotechnik Gmbh | Electrolysis-cell unit |
US4822460A (en) * | 1984-11-05 | 1989-04-18 | The Dow Chemical Company | Electrolytic cell and method of operation |
JPH05140782A (en) * | 1991-11-14 | 1993-06-08 | Permelec Electrode Ltd | Electrode structure |
US5593555A (en) * | 1994-06-01 | 1997-01-14 | Heraeus Electrochemie Bitterfeld Gmbh | Electrode structure for a monopolar electrolysis cell operating by the diaphragm or membrane process |
US20050236269A1 (en) * | 2002-07-12 | 2005-10-27 | Salvatore Peragine | Structure for cathodic fingers of chlor-alkali diaphragm cells |
US20060163081A1 (en) * | 2003-06-24 | 2006-07-27 | Giovanni Meneghini | Expandable anode for diaphragm cells |
DE102006046807A1 (en) * | 2006-09-29 | 2008-04-03 | Uhdenora S.P.A. | Electrolysis cell used for chlor-alkali electrolysis comprises one electrode curved between two bars in the direction of the opposite-lying electrode |
US20090050472A1 (en) * | 2006-01-16 | 2009-02-26 | Uhdenora S.P.A. | Elastic Current Distributor for Percolating Cells |
US20090098404A1 (en) * | 2007-10-16 | 2009-04-16 | Honda Motor Co., Ltd. | System for forming holes in metal sheet |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE243256C (en) | ||||
DE2630883C2 (en) | 1976-07-09 | 1985-02-07 | Basf Ag, 6700 Ludwigshafen | Use of a layer containing porous inorganic oxides applied to a metallic support by the plasma or flame spraying process as a diaphragm in an electrolysis cell |
DE3219704A1 (en) | 1982-05-26 | 1983-12-01 | Uhde Gmbh, 4600 Dortmund | MEMBRANE ELECTROLYSIS CELL |
DE3401637A1 (en) * | 1984-01-19 | 1985-07-25 | Hoechst Ag, 6230 Frankfurt | METHOD FOR ELECTROLYZING LIQUID ELECTROLYTE |
SU1724736A1 (en) * | 1988-06-30 | 1992-04-07 | Предприятие П/Я В-2287 | Electrode |
IT1263900B (en) * | 1993-02-12 | 1996-09-05 | Permelec Spa Nora | IMPROVED CHLOR-SODA ELECTROLYSIS CELL WITH POROUS DIAPHRAGM AND RELATED PROCESS |
DE4306889C1 (en) * | 1993-03-05 | 1994-08-18 | Heraeus Elektrochemie | Electrode arrangement for gas-forming electrolytic processes in membrane cells and their use |
DE4415146C2 (en) | 1994-04-29 | 1997-03-27 | Uhde Gmbh | Electrode for electrolytic cells with an ion exchange membrane |
JP3079008B2 (en) | 1995-06-02 | 2000-08-21 | 松下電器産業株式会社 | Nickel metal hydride battery |
JP2002224674A (en) * | 1996-08-06 | 2002-08-13 | Takio Tec:Kk | Apparatus and method for manufacturing substrate washing water, substrate washing water manufactured by the same, and method for washing substrate by using substrate washing water |
DE19816334A1 (en) | 1998-04-11 | 1999-10-14 | Krupp Uhde Gmbh | Electrolysis apparatus for the production of halogen gases |
WO2000011242A1 (en) * | 1998-08-25 | 2000-03-02 | Toagosei Co., Ltd. | Soda electrolytic cell provided with gas diffusion electrode |
DE102005006555A1 (en) | 2005-02-11 | 2006-08-17 | Uhdenora S.P.A. | Electrode for electrolysis cells |
-
2010
- 2010-05-28 DE DE102010021833A patent/DE102010021833A1/en active Pending
-
2011
- 2011-05-23 KR KR1020127033818A patent/KR20130079448A/en active Application Filing
- 2011-05-23 RU RU2012150764/04A patent/RU2576318C2/en active
- 2011-05-23 WO PCT/EP2011/002552 patent/WO2011147557A1/en active Application Filing
- 2011-05-23 EP EP11738600.3A patent/EP2576869A1/en active Pending
- 2011-05-23 BR BR112012030076-8A patent/BR112012030076B1/en active IP Right Grant
- 2011-05-23 CA CA2800845A patent/CA2800845C/en active Active
- 2011-05-23 JP JP2013511574A patent/JP6353226B2/en active Active
- 2011-05-23 CN CN2011800255537A patent/CN102906310A/en active Pending
- 2011-05-23 KR KR1020177020554A patent/KR20170089935A/en active Search and Examination
-
2012
- 2012-11-28 US US13/686,971 patent/US11162178B2/en active Active
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB719838A (en) * | 1951-07-28 | 1954-12-08 | Bamag Meguin Ag | Improvements in or relating to electrodes for electrolytic cells |
DE2245926A1 (en) * | 1971-09-22 | 1973-04-19 | Oronzio De Nora Impianti | HORIZONTAL, PLANAR, BIPOLAR DIAPHRAGM CELLS |
US4059500A (en) * | 1975-04-14 | 1977-11-22 | Georgy Mikirtychevich Kamarian | Electrode unit |
GB1579427A (en) * | 1976-08-04 | 1980-11-19 | Ici Ltd | Electrodes for electrolytic cells |
US4421609A (en) * | 1979-07-16 | 1983-12-20 | Compagnie Generale Des Etablissements Michelin | Process for producing electrode with current outlets |
US4265719A (en) * | 1980-03-26 | 1981-05-05 | The Dow Chemical Company | Electrolysis of aqueous solutions of alkali-metal halides employing a flexible polymeric hydraulically-impermeable membrane disposed against a roughened surface cathode |
JPS5883466U (en) * | 1981-11-27 | 1983-06-06 | ペルメレツク電極株式会社 | Electrolyte using ion exchange membrane |
US4822460A (en) * | 1984-11-05 | 1989-04-18 | The Dow Chemical Company | Electrolytic cell and method of operation |
GB2180556A (en) * | 1985-07-29 | 1987-04-01 | Permelec Electrode Ltd | Apertured electrode for electrolysis |
DE3603254A1 (en) * | 1986-02-03 | 1987-08-06 | Ht Hydrotechnik Gmbh | Electrolysis-cell unit |
JPH05140782A (en) * | 1991-11-14 | 1993-06-08 | Permelec Electrode Ltd | Electrode structure |
US5593555A (en) * | 1994-06-01 | 1997-01-14 | Heraeus Electrochemie Bitterfeld Gmbh | Electrode structure for a monopolar electrolysis cell operating by the diaphragm or membrane process |
US20050236269A1 (en) * | 2002-07-12 | 2005-10-27 | Salvatore Peragine | Structure for cathodic fingers of chlor-alkali diaphragm cells |
US20060163081A1 (en) * | 2003-06-24 | 2006-07-27 | Giovanni Meneghini | Expandable anode for diaphragm cells |
US20090050472A1 (en) * | 2006-01-16 | 2009-02-26 | Uhdenora S.P.A. | Elastic Current Distributor for Percolating Cells |
DE102006046807A1 (en) * | 2006-09-29 | 2008-04-03 | Uhdenora S.P.A. | Electrolysis cell used for chlor-alkali electrolysis comprises one electrode curved between two bars in the direction of the opposite-lying electrode |
US20090098404A1 (en) * | 2007-10-16 | 2009-04-16 | Honda Motor Co., Ltd. | System for forming holes in metal sheet |
Non-Patent Citations (2)
Title |
---|
PETER SCHMITTINGER: "Chlorine", ULLMANN'S ENCYCLOPEDIA OF INDUSTRIAL CHEMISTRY, 1 January 2006 (2006-01-01), pages 71 - 74, XP055006250, Retrieved from the Internet <URL:www.ullmann.com> [retrieved on 20110905], DOI: 10.1002/14356007.a06_399.pub2 * |
See also references of WO2011147557A1 * |
Also Published As
Publication number | Publication date |
---|---|
US11162178B2 (en) | 2021-11-02 |
KR20130079448A (en) | 2013-07-10 |
JP2013527324A (en) | 2013-06-27 |
BR112012030076B1 (en) | 2020-10-06 |
US20130087465A1 (en) | 2013-04-11 |
RU2012150764A (en) | 2014-07-10 |
CA2800845C (en) | 2019-04-09 |
WO2011147557A1 (en) | 2011-12-01 |
RU2576318C2 (en) | 2016-02-27 |
CN102906310A (en) | 2013-01-30 |
KR20170089935A (en) | 2017-08-04 |
BR112012030076A2 (en) | 2016-09-20 |
CA2800845A1 (en) | 2011-12-01 |
DE102010021833A1 (en) | 2011-12-01 |
JP6353226B2 (en) | 2018-07-04 |
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Inventor name: OELMANN, STEFAN Inventor name: WOLTERING, PETER Inventor name: HOORMANN, DIRK Inventor name: HOFMANN, PHILIPP Inventor name: DULLE, KARL-HEINZ Inventor name: FUNCK, FRANK Inventor name: SCHMITT, CARSTEN |
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