CN108314910A - A kind of prebaked anode in aluminium cell antioxidizing paint - Google Patents
A kind of prebaked anode in aluminium cell antioxidizing paint Download PDFInfo
- Publication number
- CN108314910A CN108314910A CN201810364469.1A CN201810364469A CN108314910A CN 108314910 A CN108314910 A CN 108314910A CN 201810364469 A CN201810364469 A CN 201810364469A CN 108314910 A CN108314910 A CN 108314910A
- Authority
- CN
- China
- Prior art keywords
- prebaked anode
- aluminium
- oxidation
- phosphate
- alundum
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of prebaked anode in aluminium cell antioxidizing paints, it is by Aluminum sol, aluminium dihydrogen phosphate and other auxiliary agents by centainly matching the colloidal sol after being reconciled, it is equipped with the above aluminium oxide of 40 mesh and carries out a kind of coating formed after mixing match, the anti-oxidation glue be by 8~10% Aluminum sol, 40~42% aluminium dihydrogen phosphate, 55~60% water and auxiliary agent no more than 1%, mucilage binding liquid made of being reconciled according to a certain percentage；The auxiliary agent is the mixture of phosphate and alundum (Al2O3), and the proportioning of phosphate and alundum (Al2O3) is phosphate：Alundum (Al2O3)=（55~65%）：（35~45%）；The proportioning of anti-oxidation glue and aluminium oxide is 4:1.By being brushed or being sprayed on prebaked anode surface, one layer of fine and close aluminum oxide film is formed on prebaked anode surface, the film has anti-1000 DEG C of high temperature, very strong bonding force and peritonaeum, can effectively obstruct contact and oxidation of the prebaked anode with air, reduce the oxidation rate of prebaked anode.
Description
One, technical field：
The present invention relates to a kind of prebaked anode in aluminium cell antioxidizing paints, belong to the anti-oxidation processing skill of prebaked anode in aluminium cell
Art field.
Two, background technology：
Prebaked anode is the heart of aluminium cell, and the quality of quality is larger to aluminum electrolysis influence on system operation, to primary aluminum quality
Also certain influence is generated, while influencing each economic target, the rate of slag falling of prebaked anode is to weigh quality of prebaked anode quality
An index, rate of slag falling is higher, and the influence to aluminum electrolysis is bigger, and the labor intensity of worker is bigger, and unit benefit is lower.
Therefore the charcoal quantity of slag in electrolytic cell is reduced, is the effective way for reducing staff labor intensity and improving electrolytic cell currents efficiency.It is anti-
Only there are many method of prebaked anode oxidation, but effective method is few, is on one side from prebaked anode quality control itself
Factor, in addition anti-oxidation measure is effective effective way for reducing prebaked anode rate of slag falling.Prebaked anode is replaced to electrolytic cell
After upper, as the raising of bath temperature, and conductive effect, prebaked anode own temperature can all rise, the prebaked anode of high temperature
Surface is chemically reacted with oxygen after contacting with the air, generates surface consumption, also oxidation described in time, due to surface oxidation
It is insufficient, cause surface carbon abscission phenomenon more serious, the carbon granules to fall off, which is fallen into, forms breeze in electrolytic cell, to prevent prebake
Anode high temperature surface and air catalytic oxidation, invent the coating, prebaked anode surface are brushed or sprayed, make its surface shape
At one layer of fine and close alumina protective layer, barrier air is chemically reacted with prebaked anode, avoids prebaked anode oxidative phenomena
Generation.
Three, invention content：
The technical problem to be solved by the present invention is to：A kind of prebaked anode in aluminium cell antioxidizing paint is provided, aluminium electroloysis is solved
Slot is the problem of the prebaked anode after carrying out anode change aoxidizes.
The present invention is to solve the technical solution taken of technical problem：
A kind of prebaked anode in aluminium cell antioxidizing paint, be by Aluminum sol, aluminium dihydrogen phosphate, water and auxiliary agent according to a certain percentage
Anti-oxidation glue made of being reconciled, then be equipped with 40 mesh or more aluminium oxide reconciled made of coating.
The anti-oxidation glue be by 8~10% Aluminum sol, 40~42% aluminium dihydrogen phosphate, 55~60% water and not
Auxiliary agent more than 1%, mucilage binding liquid made of being reconciled according to a certain percentage；The auxiliary agent is phosphate and alundum (Al2O3)
Mixture, the proportioning of the phosphate and alundum (Al2O3) is phosphate：Alundum (Al2O3)=（55~65%）：（35~
45%）；The proportioning of the anti-oxidation glue and aluminium oxide is 4:1.
The prebaked anode in aluminium cell pole antioxidizing paint of the present invention is a kind of colloid, is by Aluminum sol, aluminium dihydrogen phosphate
And other auxiliary agents are equipped with after the above aluminium oxide of 40 mesh carries out mixing match and are formed by centainly matching the colloidal sol after being reconciled
A kind of coating, main component be aluminium dihydrogen phosphate, Aluminum sol and other auxiliary agents as additive, increase the bonding of colloid
Degree.Prebaked anode surface is brushed or is sprayed when use, one layer of fine and close aluminum oxide film is formed on prebaked anode surface,
The film has anti-1000 DEG C of high temperature, very strong bonding force and peritonaeum, can effectively obstruct contact of the prebaked anode with air
And oxidation, the oxidation rate of prebaked anode is reduced, the service life of prebaked anode is improved, reduces unit material consumption.
The innovation point of the present invention is as follows：
1, with aluminium dihydrogen phosphate for main colloid raw material, Aluminum sol and other auxiliary agents are additive.
2, the colloid formed has high temperature resistance, very strong bonding force and peritonaeum, anti-oxidation and good in oxidation resistance.
3, its colloid can well be merged with aluminium oxide, form coating.
4, small to the pollution of electrolytic cell.
5, pernicious gas is not generated, free from extraneous odour is environmentally safe, belongs to environment-friendly type coating.
The positive beneficial effect of the present invention is as follows：
1, cheap.
2, improve the working environment and labor intensity of employee.
3, the rate of slag falling for reducing prebaked anode, effectively prevent prebaked anode to aoxidize.
4,1-2 days prebaked anode replacement cycle can be extended, effectively reduce unit material consumption.
5, easy to operate, it is easy to implement mechanized operation.
Four, specific implementation mode：
With reference to embodiment, the present invention will be further explained：
Embodiment：A kind of prebaked anode in aluminium cell antioxidizing paint, by Aluminum sol, aluminium dihydrogen phosphate, water and auxiliary agent according to one
Certainty ratio anti-oxidation glue made of being reconciled, then be equipped with 40 mesh or more aluminium oxide reconciled made of coating.
The anti-oxidation glue be by 8~10% Aluminum sol, 40~42% aluminium dihydrogen phosphate, 55~60% water and not
Auxiliary agent more than 1%, mucilage binding liquid made of being reconciled according to a certain percentage；The auxiliary agent is phosphate and alundum (Al2O3)
Mixture, the proportioning of the phosphate and alundum (Al2O3) is phosphate：Alundum (Al2O3)=（55~65%）：（35~
45%）；The proportioning of the anti-oxidation glue and aluminium oxide is 4:1.
The prebaked anode in aluminium cell pole antioxidizing paint of the present invention is a kind of colloid, is by Aluminum sol, aluminium dihydrogen phosphate
And other auxiliary agents are equipped with after the above aluminium oxide of 40 mesh carries out mixing match and are formed by centainly matching the colloidal sol after being reconciled
A kind of coating, main component be aluminium dihydrogen phosphate, Aluminum sol and other auxiliary agents as additive, increase the bonding of colloid
Degree.Prebaked anode surface is brushed or is sprayed when use, one layer of fine and close aluminum oxide film is formed on prebaked anode surface,
The film has anti-1000 DEG C of high temperature, very strong bonding force and peritonaeum, can effectively obstruct contact of the prebaked anode with air
And oxidation, the oxidation rate of prebaked anode is reduced, the service life of prebaked anode is improved, reduces unit material consumption.
Claims (2)
1. a kind of prebaked anode in aluminium cell antioxidizing paint, it is characterised in that：The anti-oxidation painting of prebaked anode in aluminium cell
Material is anti-oxidation glue made of being reconciled according to a certain percentage by Aluminum sol, aluminium dihydrogen phosphate, water and auxiliary agent, then is equipped with 40 mesh
Coating made of above aluminium oxide is reconciled.
2. prebaked anode in aluminium cell antioxidizing paint according to claim 1, it is characterised in that：The anti-oxidation glue is
By 8~10% Aluminum sol, 40~42% aluminium dihydrogen phosphate, 55~60% water and auxiliary agent no more than 1%, according to certain ratio
Mucilage binding liquid made of example is reconciled；The auxiliary agent is the mixture of phosphate and alundum (Al2O3), the phosphate and three
The proportioning of Al 2 O is phosphate：Alundum (Al2O3)=（55~65%）：（35~45%）；The anti-oxidation glue and oxidation
The proportioning of aluminium is 4:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364469.1A CN108314910A (en) | 2018-04-23 | 2018-04-23 | A kind of prebaked anode in aluminium cell antioxidizing paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364469.1A CN108314910A (en) | 2018-04-23 | 2018-04-23 | A kind of prebaked anode in aluminium cell antioxidizing paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108314910A true CN108314910A (en) | 2018-07-24 |
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ID=62895604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810364469.1A Pending CN108314910A (en) | 2018-04-23 | 2018-04-23 | A kind of prebaked anode in aluminium cell antioxidizing paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108314910A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136992A (en) * | 2018-09-06 | 2019-01-04 | 索通发展股份有限公司 | The preparation method of pre-baked carbon anode graphene composite protection layer |
| CN116515328A (en) * | 2023-05-06 | 2023-08-01 | 遵义铝业股份有限公司 | Anode anti-oxidation coating for aluminum oxide-based aluminum electrolysis, preparation method and device |
| RU2808308C1 (en) * | 2023-02-28 | 2023-11-28 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for obtaining protective coatings for baked anode blocks of aluminium electrolysers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787549A (en) * | 2010-03-30 | 2010-07-28 | 云南铝业股份有限公司 | Method for improving inoxidizability of anode of high aluminum electrolysis slot |
| CN104878411A (en) * | 2015-05-25 | 2015-09-02 | 王二体 | Environment-friendly anode coating as well as preparation method and application thereof |
| CN106892642A (en) * | 2015-12-17 | 2017-06-27 | 高伟 | A kind of anode carbon block ORC |
-
2018
- 2018-04-23 CN CN201810364469.1A patent/CN108314910A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787549A (en) * | 2010-03-30 | 2010-07-28 | 云南铝业股份有限公司 | Method for improving inoxidizability of anode of high aluminum electrolysis slot |
| CN104878411A (en) * | 2015-05-25 | 2015-09-02 | 王二体 | Environment-friendly anode coating as well as preparation method and application thereof |
| CN106892642A (en) * | 2015-12-17 | 2017-06-27 | 高伟 | A kind of anode carbon block ORC |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136992A (en) * | 2018-09-06 | 2019-01-04 | 索通发展股份有限公司 | The preparation method of pre-baked carbon anode graphene composite protection layer |
| RU2808308C1 (en) * | 2023-02-28 | 2023-11-28 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for obtaining protective coatings for baked anode blocks of aluminium electrolysers |
| CN116515328A (en) * | 2023-05-06 | 2023-08-01 | 遵义铝业股份有限公司 | Anode anti-oxidation coating for aluminum oxide-based aluminum electrolysis, preparation method and device |
| CN116515328B (en) * | 2023-05-06 | 2024-05-03 | 遵义铝业股份有限公司 | Anode anti-oxidation coating for aluminum oxide-based aluminum electrolysis, preparation method and device |
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Application publication date: 20180724 |
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