CN219815859U - Stable titanium anode for electrodialysis - Google Patents
Stable titanium anode for electrodialysis Download PDFInfo
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- CN219815859U CN219815859U CN202321295263.0U CN202321295263U CN219815859U CN 219815859 U CN219815859 U CN 219815859U CN 202321295263 U CN202321295263 U CN 202321295263U CN 219815859 U CN219815859 U CN 219815859U
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- titanium
- titanium anode
- noble metal
- metal coating
- anode
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- 239000010936 titanium Substances 0.000 title claims abstract description 115
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 115
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 54
- 239000011248 coating agent Substances 0.000 claims abstract description 53
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 44
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 238000007747 plating Methods 0.000 claims abstract description 27
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052709 silver Inorganic materials 0.000 claims abstract description 11
- 239000004332 silver Substances 0.000 claims abstract description 11
- CJTCBBYSPFAVFL-UHFFFAOYSA-N iridium ruthenium Chemical compound [Ru].[Ir] CJTCBBYSPFAVFL-UHFFFAOYSA-N 0.000 claims description 12
- 229910052703 rhodium Inorganic materials 0.000 claims description 10
- 239000010948 rhodium Substances 0.000 claims description 10
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 15
- 239000012528 membrane Substances 0.000 description 12
- 239000003014 ion exchange membrane Substances 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 150000001450 anions Chemical class 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- 239000003011 anion exchange membrane Substances 0.000 description 2
- 238000005341 cation exchange Methods 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- -1 electrons Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a stable titanium anode for electrodialysis, which comprises a titanium anode body, a titanium substrate, a noble metal coating and a grid body, wherein the titanium substrate is arranged in the titanium anode body, the noble metal coating is arranged on the surface of the titanium substrate, an intermediate layer is arranged between the noble metal coating and the titanium substrate, a silver plating layer is arranged on the surface of the noble metal coating, the grid body is arranged on the inner side of the titanium anode body, equidistant rectangular through holes are formed in the titanium anode body on two sides of the grid body, mounting plates are arranged at the top ends of the titanium anode body, and circular through holes are formed in the mounting plates. The utility model not only ensures that the titanium anode has stable service performance, high output current density and small loss, ensures that the titanium anode has high hardness, wear resistance and corrosion resistance and long service life, but also ensures that the titanium anode is convenient to assemble and install and is more convenient to use.
Description
Technical Field
The utility model relates to the technical field of electrodialysis, in particular to a stable titanium anode for electrodialysis.
Background
The method of separating different solute particles (e.g., ions) by using the selective permeability of a semipermeable membrane is called dialysis, the phenomenon that charged solute particles (e.g., ions) in a solution migrate through the membrane when dialysis is performed under an electric field is called electrodialysis, and the technique of purifying and separating substances by electrodialysis is called electrodialysis, which is a new technique originally used for sea water desalination, and is now widely used in chemical industry, light industry, metallurgy, paper making, pharmaceutical industry, especially for preparing pure water and treating three wastes in environmental protection, such as acid-base recovery, electroplating waste liquid treatment, and recovery of useful substances from industrial waste water.
The semi-permeable membrane used for electrodialysis is, in fact, an ion exchange membrane which can be divided into a cation exchange membrane (Yang Mo) and an anion exchange membrane (anion membrane) according to the charge properties of ions. In the aqueous electrolyte solution, the cation membrane allows cations to permeate and repels blocking anions, and the anion membrane allows anions to permeate and repels blocking cations, which is the permselectivity of the ion exchange membrane. In the electrodialysis process, the ion exchange membrane does not exchange with certain ions in the aqueous solution like ion exchange resin, but only has selective permeation effect on ions with different electrical properties, namely the ion exchange membrane does not need to be regenerated. The compartment of the electrode and membrane of the electrodialysis process is called the polar compartment, in which the electrochemical reaction takes place as in the case of the conventional electrode reaction. Oxidation reaction occurs in the anode chamber, anode water is acidic, and the anode itself is easily corroded. The reduction reaction occurs in the cathode chamber, cathode water is alkaline, and scaling is easy to occur on the cathode.
At present, the electrodialyzer has wide application range, and can be used for the pretreatment of preparing pure water, electrons, medicines and other industries in the industries of food, light industry and the like in the aspects of desalting water, concentrating seawater, preparing salt, refining dairy products, deacidifying and refining juice, preparing chemical products and the like. The primary softening and desalting of boiler feed water lightens brackish water into drinking water. The electrodialysis device is suitable for water supply treatment in the industries of electronics, medicine, chemical industry, thermal power generation, food, beer, beverage, printing and dyeing, coating and the like. Can also be used for physical and chemical processes such as concentration, purification, separation and the like of materials.
The titanium anode is the anode in the titanium-based metal oxide coating, has oxygen evolution function and chlorine evolution function according to different surface catalytic coatings, plays an important role in electrodialysis, and has low stability, low conductivity, low hardness, easy abrasion and long service life in the working process, so the titanium anode needs to be improved.
Disclosure of Invention
The present utility model aims to provide a stable titanium anode for electrodialysis to solve the problems set forth in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electrodialysis is with stable titanium positive pole, includes titanium positive pole body, titanium base plate, noble metal coating and net body, the titanium base plate sets up the inside at the titanium positive pole body, noble metal coating all sets up the surface at the titanium base plate, the net body sets up the inboard at the titanium positive pole body, the inside equidistant rectangle through-hole that all is provided with of titanium positive pole body of net body both sides, the top of titanium positive pole body all is provided with the mounting sheet, mounting sheet and titanium positive pole body integrated into one piece.
Preferably, the noble metal coating is a ruthenium iridium layer, and the ruthenium iridium coating titanium anode has stable service performance and excellent conductivity and corrosion resistance.
Preferably, an intermediate layer is arranged between the noble metal coating and the titanium substrate, so that the binding force between the noble metal coating and the titanium substrate can be increased, the noble metal coating and the titanium substrate are firmly combined, and the noble metal coating can be prevented from falling off and dissolving.
Preferably, the silver plating layer is arranged on the surface of the noble metal coating, so that the conductivity of the titanium anode is improved, and the output current density of the titanium anode is high.
Preferably, the surface of the silver plating layer is provided with a rhodium plating layer, and the surface of the rhodium plating layer is provided with a chromium plating layer, so that the hardness, corrosion resistance, wear resistance and durability of the titanium anode are improved, the loss of the titanium anode is small, and the service life is long.
Preferably, the inside of installation piece is provided with circular through-hole for titanium positive pole is convenient for assemble and install, and it is more convenient to use.
Compared with the prior art, the utility model has the beneficial effects that: the stable titanium anode for electrodialysis not only ensures that the titanium anode has stable service performance, high output current density and small loss, ensures that the titanium anode has high hardness, wear resistance, corrosion resistance and long service life, but also ensures that the titanium anode is convenient to assemble and install and is more convenient to use;
(1) The titanium anode is mainly composed of the titanium substrate and the noble metal coating, the noble metal coating is a ruthenium iridium layer, the service performance of the titanium anode of the ruthenium iridium coating is stable, the titanium anode has excellent conductivity and corrosion resistance, and secondly, the intermediate layer is arranged between the titanium substrate and the noble metal coating, the surface of the titanium substrate is subjected to pre-oxidation treatment, and an oxide film is formed first, so that the binding force between the noble metal coating and the titanium substrate can be increased, the noble metal coating and the titanium substrate are firmly combined, the noble metal coating can be prevented from falling off and dissolving, the conductive performance of the titanium anode is improved due to the arrangement of the silver coating, the service performance of the titanium anode is stable, the output current density is high, and the loss is small;
(2) The arrangement of the rhodium plating layer and the chromium plating layer improves the hardness, corrosion resistance, wear resistance and durability of the titanium anode, so that the titanium anode has high hardness, wear resistance, corrosion resistance and long service life;
(3) Through being provided with mounting plate, circular through-hole, owing to be equipped with mounting plate and circular through-hole on this titanium positive pole to make titanium positive pole be convenient for assemble and install, it is more convenient to use.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic diagram of the present utility model;
FIG. 3 is a schematic view of a partially enlarged structure of the present utility model;
fig. 4 is a schematic side view of the present utility model.
In the figure: 1. a titanium anode body; 101. a titanium substrate; 102. a noble metal coating; 103. an intermediate layer; 104. silver plating; 105. plating rhodium layer; 106. a chromium plating layer; 2. a mesh body; 3. rectangular through holes; 4. a mounting piece; 5. circular through holes.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
Referring to fig. 1-4, an embodiment of the present utility model is provided: the stable titanium anode for electrodialysis comprises a titanium anode body 1, a titanium substrate 101, a noble metal coating 102 and a grid body 2, wherein the titanium substrate 101 is arranged in the titanium anode body 1, and the noble metal coating 102 is arranged on the surface of the titanium substrate 101;
the noble metal coating 102 is a ruthenium iridium layer, and the ruthenium iridium coating titanium anode has stable service performance, excellent conductivity and corrosion resistance;
an intermediate layer 103 is arranged between the noble metal coating 102 and the titanium substrate 101, so that the binding force between the noble metal coating 102 and the titanium substrate 101 can be increased, the noble metal coating 102 and the titanium substrate 101 are firmly combined, and the noble metal coating 102 can be prevented from falling off and dissolving;
the titanium anode mainly comprises a titanium substrate 101 and a noble metal coating 102, wherein the noble metal coating 102 is a ruthenium iridium layer, the ruthenium iridium coating titanium anode has stable service performance and excellent conductivity and corrosion resistance, and secondly, through arranging an intermediate layer 103 between the titanium substrate 101 and the noble metal coating 102, pre-oxidation treatment is carried out on the surface of the titanium substrate 101, and an oxide film is formed first, so that the binding force between the noble metal coating 102 and the titanium substrate 101 can be increased, the noble metal coating 102 and the titanium substrate 101 are firmly combined, and the noble metal coating 102 can be prevented from falling off and dissolving;
the silver plating layer 104 is arranged on the surface of the noble metal coating 102, so that the conductivity of the titanium anode is improved, and the output current density of the titanium anode is high;
the surface of the silver plating layer 104 is provided with the rhodium plating layer 105, and the surface of the rhodium plating layer 105 is provided with the chromium plating layer 106, so that the hardness, corrosion resistance, wear resistance and durability of the titanium anode are improved, the loss of the titanium anode is small, and the service life is long;
the arrangement of the silver plating layer 104 improves the conductivity of the titanium anode, and the arrangement of the rhodium plating layer 105 and the chromium plating layer 106 improves the hardness, corrosion resistance, wear resistance and durability of the titanium anode, so that the titanium anode has stable service performance, high output current density, high hardness, wear resistance, corrosion resistance, small loss and long service life;
the grid body 2 is arranged at the inner side of the titanium anode body 1, and rectangular through holes 3 with equal intervals are formed in the titanium anode body 1 at two sides of the grid body 2;
the top ends of the titanium anode bodies 1 are provided with mounting pieces 4, and the mounting pieces 4 and the titanium anode bodies 1 are integrally formed;
the inside of mounting piece 4 is provided with circular through-hole 5 for titanium positive pole is convenient for assemble and install, and it is more convenient to use.
When the embodiment of the utility model is used, the following steps are adopted: firstly, the titanium anode is mainly composed of a titanium substrate 101 and a noble metal coating 102, wherein the noble metal coating 102 is a ruthenium iridium layer, the service performance of the ruthenium iridium coating titanium anode is stable, and the ruthenium iridium coating has excellent conductivity and corrosion resistance, secondly, by arranging an intermediate layer 103 between the titanium substrate 101 and the noble metal coating 102, performing pre-oxidation treatment on the surface of the titanium substrate 101, firstly forming an oxide film, so that the binding force between the noble metal coating 102 and the titanium substrate 101 can be increased, the noble metal coating 102 and the titanium substrate 101 are firmly combined, the noble metal coating 102 can be prevented from falling off and dissolving, then, the arrangement of a silver plating layer 104 improves the conductivity of the titanium anode, the arrangement of a rhodium plating layer 105 and a chromium plating layer 106 improves the hardness and corrosion resistance of the titanium anode, the titanium anode has stable service performance, high output current density, high hardness, wear resistance, corrosion resistance, small loss and long service life, and is provided with a mounting sheet 4 and a circular through hole 5, so that the titanium anode is convenient to assemble and mount and more convenient to use, can simultaneously perform desalination, concentration, separation and purification functions on electrolyte aqueous solution, can be used for purifying non-electrolyte such as sucrose and the like so as to remove the electrolyte, can also utilize high redox efficiency on the electrode, and is an ion exchange membrane which can be divided into a cation exchange membrane (Yang Mo) and an anion exchange membrane (a negative membrane) according to the charge property of ions. In the aqueous electrolyte solution, the cation membrane allows cations to permeate and repels blocking anions, and the anion membrane allows anions to permeate and repels blocking cations, which is the permselectivity of the ion exchange membrane. In the electrodialysis process, the ion exchange membrane does not exchange with certain ions in the aqueous solution like ion exchange resin, but only has selective permeation effect on ions with different electrical properties, namely the ion exchange membrane does not need to be regenerated.
Claims (6)
1. The utility model provides a stable titanium anode for electrodialysis, its characterized in that includes titanium anode body (1), titanium base plate (101), noble metal coating (102) and net body (2), titanium base plate (101) set up the inside at titanium anode body (1), noble metal coating (102) all set up the surface at titanium base plate (101), net body (2) set up the inboard at titanium anode body (1), the inside rectangle through-hole (3) of equidistant all are provided with of titanium anode body (1) of net body (2) both sides, the top of titanium anode body (1) all is provided with mounting plate (4), mounting plate (4) and titanium anode body (1) integrated into one piece.
2. The stable titanium anode for electrodialysis according to claim 1, wherein: the noble metal coating (102) is a ruthenium iridium layer.
3. The stable titanium anode for electrodialysis according to claim 1, wherein: an intermediate layer (103) is arranged between the noble metal coating (102) and the titanium substrate (101).
4. The stable titanium anode for electrodialysis according to claim 1, wherein: the surface of the noble metal coating (102) is provided with a silver plating layer (104).
5. The stable titanium anode for electrodialysis according to claim 4, wherein: the surface of the silver plating layer (104) is provided with a rhodium plating layer (105), and the surface of the rhodium plating layer (105) is provided with a chromium plating layer (106).
6. The stable titanium anode for electrodialysis according to claim 1, wherein: the inside of mounting piece (4) is provided with circular through-hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321295263.0U CN219815859U (en) | 2023-05-25 | 2023-05-25 | Stable titanium anode for electrodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321295263.0U CN219815859U (en) | 2023-05-25 | 2023-05-25 | Stable titanium anode for electrodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219815859U true CN219815859U (en) | 2023-10-13 |
Family
ID=88276827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321295263.0U Active CN219815859U (en) | 2023-05-25 | 2023-05-25 | Stable titanium anode for electrodialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219815859U (en) |
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2023
- 2023-05-25 CN CN202321295263.0U patent/CN219815859U/en active Active
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