CN1537974A - Normal temperature solidified titanium boride cathode coating for aluminium electrolysis - Google Patents
Normal temperature solidified titanium boride cathode coating for aluminium electrolysis Download PDFInfo
- Publication number
- CN1537974A CN1537974A CNA031182739A CN03118273A CN1537974A CN 1537974 A CN1537974 A CN 1537974A CN A031182739 A CNA031182739 A CN A031182739A CN 03118273 A CN03118273 A CN 03118273A CN 1537974 A CN1537974 A CN 1537974A
- Authority
- CN
- China
- Prior art keywords
- tib
- cathode
- chemical pure
- powder
- aluminium electrolysis
- 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.)
- Granted
Links
Abstract
An ordinary-temp solidified titanium bromide layer coated on cathode for electrolyzing aluminium is prepared by use of high-molecular furan resin, composite epoxy resin and solidifying agent. Its advantages are low cost, high adhesion and high electric conductivity.
Description
[technical field] the present invention relates to a kind of aluminium electrolytic cell cathode, particularly with TiB
2Cathode thickener for functional materials.
[background technology] is because TiB
2Can with aluminium liquid complete wetting, and have good electroconductibility, become and made that used for aluminium electrolysis is wettable, the preferred material of inert cathode.At present, the wettable negative electrode of using in Aluminium Electrolysis mainly is resin TiB
2Cathode.Disclosed resin TiB
2The cathode paste formula mainly comprises powdery TiB
2, thermosetting resin, solidifying agent and solvent etc.The composition of solidifying agent mainly is mineral acid second fat (phosphoric acid second fat, a sulfuric acid acetate etc.).Be mixed with TiB
2The resin of powder under the effect of solidifying agent, hot setting.Along with the rising of temperature, resin crosslinks, polymerization become insoluble, infusible solid, thereby play TiB
2Be bonded in the effect on carbon cathode surface.The solidified top temperature is 220 ℃～240 ℃.Behind the hot setting, TiB
2Cathode need utilize the heat charing TiB that roasting process produced of Aluminium Electrolysis technology then from the high temperature cooling to the room temperature
2Cathode just can make TiB
2The cathode negative electrode is used by aluminium cell, produces positive effect.Whole curing, carbonization process, TiB
2The coated cathode experience once rises to high temperature by room temperature, drops to room temperature then and rises to pyritous thermal cycling process, TiB again
2Coated cathode is subjected to stronger thermal shock, causes TiB easily
2Cracking, layering or come off after the coated cathode charing.TiB
2The cathode hot setting is not the necessary technological process of Aluminium Electrolysis, need additionally purchase heating installation, increases new operation, wastes time and energy, and strengthens application cost, hinders TiB
2Applying of cathode.
[summary of the invention] the invention provides a kind of new TiB in order to address the above problem
2The cathode prescription solidifies TiB at normal temperatures
2Cathode is removed the hot setting process from, remove from hot setting must heating installation and manpower and materials, reduce TiB
2Cathode cracking, the possibility that comes off reduce TiB
2The application cost of cathode promotes TiB
2Applying of cathode.
The present invention is directed to the curing characteristics of thermoset furane resin, Resins, epoxy, adopting high furane resin, composite epoxy resin and the solidifying agent of molecular-weight average is main raw material, realizes TiB
2The ambient cure of cathode.TiB
2The cathode paste formula sees Table 1.
Table 1:TiB
2The cathode paste formula
Title specification weight percentage (%)
TiB
2Powder 3～10 μ m 40～60
Graphite Powder 99-149 μ m 3～8
Petroleum coke powder-149 μ m 5～10
-250μm 0～3
Broken-149 μ m 1～5 of used for aluminium electrolysis negative electrode
Single diameter 6～7 μ m length of carbon fiber 3～5cm 0.5～1
Carbon fiber powder-0.074 0.8～1.5
Furane resin viscosity-average molecular weight 6000～8,000 6～12
Resins, epoxy E-51 3～8
E-44 2～5
E-42 1～3
Coal tar 0.5～1.5
Oxidized bitumen powder-0.149 3～8
Ethanol chemical pure 2～8
Acetone chemical pure 2～8
Ethyl acetate chemical pure 1～5
Tosic acid chemical pure 0.5～2
Sulfuric acid acetate chemical pure 0.3～0.6
Phosphoric acid second fat chemical pure 0.3～0.6
TiB
2The cathode thickener, after self-vulcanizing, the heat that utilizes electrolysis of aluminum sinter process process to produce, disposable intensification charing TiB
2Cathode obtains can be used for the TiB of Aluminium Electrolysis
2Coated cathode.
The present invention has realized TiB
2Hot setting TiB has been removed in the ambient cure of cathode from
2Heating installation that cathode is required and manpower and materials greatly reduce application cost, have promoted TiB
2Applying of cathode; Slowed down TiB
2Cathode has reduced TiB in the suffered thermal shock of preparation process
2Cathode cracking, layering and the possibility that comes off, coating has excellent conducting performance.
[embodiment] example 1:TiB
2The cathode paste formula sees Table 2.
Table 2: paste formula
Title specification weight percentage (%)
TiB
2Powder 3～10 μ m 58
Graphite Powder 99-149 μ m 4.3
Petroleum coke powder-149 μ m 5.5
-250μm 1.0
Broken-149 μ m 1.0 of used for aluminium electrolysis negative electrode
The single diameter 6-7 of carbon fiber μ m, length 3-5cm 0.5
Carbon fiber powder-0.074 0.9
Furane resin viscosity-average molecular weight 6000～8,000 6.3
Resins, epoxy E-51 3.2
Epoxy resin E-44 2.2
Resins, epoxy E-42 1.1
Coal tar 0.5
Oxidized bitumen powder-0.149 5.5
Ethanol chemical pure 3.6
Acetone chemical pure 3.0
Ethyl acetate chemical pure 2.0
Tosic acid chemical pure 0.5
Sulfuric acid acetate chemical pure 0.5
Phosphoric acid second fat chemical pure 0.4
Each mixing of materials in the table 2 is become thickener, be applied in negative electrode, behind the self-vulcanizing 24h, the heat that utilizes electrolysis of aluminum baking coke particles technological process to be produced, high temperature carbonization gets TiB
2Cathode.Gained TiB
2The cathode flawless does not come off, bonding strength greater than the tensile strength of used for aluminium electrolysis semi-graphite cathode carbon piece (＞3.0Mpa); 25 ℃ specific conductivity is: 26.3 μ Ω .m; Good with aluminum-liquid wetting.
Above-mentioned prescription is used on the 75KA pre-calcining electrolytic cell, and the labor force that about 110,000 yuan hot setting heating installation investment and hot setting will expend has been saved in ambient cure.TiB
2Cathode is smooth, flawless.Behind the electrobath start, TiB
2Cathode does not come off.
Example 2:TiB
2The cathode paste formula sees Table 3.
Table 3: paste formula
Title specification weight percentage (%)
TiB
2Powder 3～10 μ m 49
Graphite Powder 99-149 μ m 5.6
Petroleum coke powder-149 μ m 6.2
-250μm 2.0
Broken-149 μ m 3.0 of used for aluminium electrolysis negative electrode
The single diameter 6-7 of carbon fiber μ m, length 1.0
3-5cm
Carbon fiber powder-0.074 0.9
Furane resin viscosity-average molecular weight 6000～8,000 7.8
Resins, epoxy E-51 3.4
Epoxy resin E-44 2.2
Resins, epoxy E-42 1.1
Coal tar 0.8
Oxidized bitumen powder-0.149 7.0
Ethanol chemical pure 3.6
Acetone chemical pure 3.0
Ethyl acetate chemical pure 2.0
Tosic acid chemical pure 0.5
Sulfuric acid acetate chemical pure 0.5
Phosphoric acid second fat chemical pure 0.4
Constructional method is with example 1.Gained TiB
2The cathode flawless does not come off, bonding strength greater than the tensile strength of used for aluminium electrolysis semi-graphite cathode carbon piece (＞3.0Mpa); 25 ℃ specific conductivity is: 28.4 μ Ω .m; Good with aluminum-liquid wetting.
Example 3:TiB
2The cathode paste formula sees Table 4.
Table 4: paste formula
Title specification weight percentage (%)
TiB
2Powder 3～10 μ m 42
Graphite Powder 99-149 μ m 6.3
Petroleum coke powder-149 μ m 6.8
-250μm 2.3
Broken-149 μ m 4.0 of used for aluminium electrolysis negative electrode
The single diameter 6-7 of carbon fiber μ m, length 3-5cm 1.2
Carbon fiber powder-0.074 0.9
Furane resin viscosity-average molecular weight 6000～8,000 8.2
Resins, epoxy E-51 3.4
Epoxy resin E-44 2.2
Resins, epoxy E-42 1.1
Coal tar 1.5
Oxidized bitumen powder-0.149 8.0
Ethanol chemical pure 3.6
Acetone chemical pure 3.0
Ethyl acetate chemical pure 2.0
Tosic acid chemical pure 0.5
Sulfuric acid acetate chemical pure 0.5
Phosphoric acid second fat chemical pure 0.4
Constructional method is with example 1.Gained TiB
2The cathode flawless does not come off, bonding strength greater than the tensile strength of used for aluminium electrolysis semi-graphite cathode carbon piece (＞3.0Mpa); 25 ℃ specific conductivity is: 29.8 μ Ω .m; Good with aluminum-liquid wetting.
Claims (1)
1. ambient cure used for aluminium electrolysis titanium boride cathode coating the present invention is directed to the curing characteristics of thermoset furane resin, Resins, epoxy, and adopting high furane resin, composite epoxy resin and the solidifying agent of molecular-weight average is main raw material, realizes TiB
2The ambient cure of cathode is characterized in that: TiB
2The cathode paste formula is:
Title specification weight percentage (%)
TiB
2Powder 3～10 μ m 40～60
Graphite Powder 99-149 μ m 3～8
Petroleum coke powder-149 μ m 5～10
-250μm 0～3
Broken-149 μ m 1～5 of used for aluminium electrolysis negative electrode
Single diameter 6～7 μ m length of carbon fiber 3～5cm 0.5～1
Carbon fiber powder-0.074 0.8～1.5
Furane resin viscosity-average molecular weight 6000～8,000 6～12
Resins, epoxy E-51 3～8
E-44 2～5
E-42 1～3
Coal tar 0.5～1.5
Oxidized bitumen powder-0.149 3～8
Ethanol chemical pure 2～8
Acetone chemical pure 2～8
Ethyl acetate chemical pure 1～5
Tosic acid chemical pure 0.5～2
Sulfuric acid acetate chemical pure 0.3～0.6
Phosphoric acid second fat chemical pure 0.3～0.6
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118273 CN1245537C (en) | 2003-04-15 | 2003-04-15 | Normal temperature solidified titanium boride cathode coating for aluminium electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118273 CN1245537C (en) | 2003-04-15 | 2003-04-15 | Normal temperature solidified titanium boride cathode coating for aluminium electrolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1537974A true CN1537974A (en) | 2004-10-20 |
| CN1245537C CN1245537C (en) | 2006-03-15 |
Family
ID=34320728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03118273 Expired - Fee Related CN1245537C (en) | 2003-04-15 | 2003-04-15 | Normal temperature solidified titanium boride cathode coating for aluminium electrolysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1245537C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914786A (en) * | 2010-07-05 | 2010-12-15 | 广西师范大学 | Titanium boride cathode coating paste for aluminum electrolysis, preparation method and coating method thereof |
| CN102021606A (en) * | 2010-12-24 | 2011-04-20 | 西南科技大学 | High performance room temperature cured titanium boride cathode coating for aluminium reduction cell |
| CN101698945B (en) * | 2009-11-03 | 2011-07-27 | 中国铝业股份有限公司 | Carbon-fiber reinforced cathode carbon block and preparation method thereof |
| CN102660757A (en) * | 2012-05-23 | 2012-09-12 | 深圳市新星轻合金材料股份有限公司 | Preparation technology for inert anode material or inert cathode coating material for aluminum electrolysis |
| CN103429791A (en) * | 2011-02-11 | 2013-12-04 | 西格里碳素欧洲公司 | Surface-profiled cathode block containing hard material |
| CN103936333A (en) * | 2014-04-21 | 2014-07-23 | 西安建筑科技大学 | High-temperature oxidation resistant coating for aluminum electrolysis cathode roasting and starting processes and preparation method of high-temperature oxidation resistant coating |
| CN112442328A (en) * | 2020-11-26 | 2021-03-05 | 西安建筑科技大学 | Adhesive, preparation method and application thereof |
-
2003
- 2003-04-15 CN CN 03118273 patent/CN1245537C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698945B (en) * | 2009-11-03 | 2011-07-27 | 中国铝业股份有限公司 | Carbon-fiber reinforced cathode carbon block and preparation method thereof |
| CN101914786A (en) * | 2010-07-05 | 2010-12-15 | 广西师范大学 | Titanium boride cathode coating paste for aluminum electrolysis, preparation method and coating method thereof |
| CN101914786B (en) * | 2010-07-05 | 2012-02-29 | 广西师范大学 | Titanium boride cathode coating paste for aluminum electrolysis, preparation method and coating method thereof |
| CN102021606A (en) * | 2010-12-24 | 2011-04-20 | 西南科技大学 | High performance room temperature cured titanium boride cathode coating for aluminium reduction cell |
| CN102021606B (en) * | 2010-12-24 | 2012-04-18 | 西南科技大学 | High performance room temperature cured titanium boride cathode coating for aluminium reduction cell |
| CN103429791A (en) * | 2011-02-11 | 2013-12-04 | 西格里碳素欧洲公司 | Surface-profiled cathode block containing hard material |
| CN102660757A (en) * | 2012-05-23 | 2012-09-12 | 深圳市新星轻合金材料股份有限公司 | Preparation technology for inert anode material or inert cathode coating material for aluminum electrolysis |
| CN102660757B (en) * | 2012-05-23 | 2015-01-21 | 深圳市新星轻合金材料股份有限公司 | Preparation technology for inert anode material or inert cathode coating material for aluminum electrolysis |
| CN103936333A (en) * | 2014-04-21 | 2014-07-23 | 西安建筑科技大学 | High-temperature oxidation resistant coating for aluminum electrolysis cathode roasting and starting processes and preparation method of high-temperature oxidation resistant coating |
| CN103936333B (en) * | 2014-04-21 | 2016-04-27 | 西安建筑科技大学 | A kind of aluminium electrolysis cathode roasting and start-up course high-temperature oxidation resistant coating and preparation method thereof |
| CN112442328A (en) * | 2020-11-26 | 2021-03-05 | 西安建筑科技大学 | Adhesive, preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1245537C (en) | 2006-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1076044C (en) | Needle coke for graphite electrode and process for producing the same | |
| CN1807693A (en) | Aluminium electrolysis cathode with titanium diboride coating and preparation process thereof | |
| CN101844926B (en) | Pelleting method of titanium diboride powder | |
| CN1212364C (en) | material for storing heat and supplying heat for building generated shaped phase change by heating and its preparation method | |
| CN1537974A (en) | Normal temperature solidified titanium boride cathode coating for aluminium electrolysis | |
| CN1712473A (en) | Epoxy zinc-enriched antiseptic powdery paint and production thereof | |
| CN1537975A (en) | Titanium boride/aluminium oxide cathode coating for aluminium electrolysis and its preparation method | |
| CN1305150C (en) | Modified graphite and its preparing method | |
| CN1238919C (en) | Process for preparing fuel cell bipolar plate and composite material used thereof | |
| CN101914786B (en) | Titanium boride cathode coating paste for aluminum electrolysis, preparation method and coating method thereof | |
| CN1042502A (en) | The method that contains the matrix material of controlled content of reinforcer agent with metal matrix production | |
| CN1118529C (en) | Refractory carbon adhesive and its application method | |
| CN1724712A (en) | Manufacturing method of alumnium electrolytic bath cathode carbon block having TiB2/C composite material layer | |
| CN1118530C (en) | Adhesive for adhering carbon materials | |
| CN102021606B (en) | High performance room temperature cured titanium boride cathode coating for aluminium reduction cell | |
| CN1807529A (en) | Composite resin type electromagnetic wave shielding coating and its preparation method | |
| CN1687316A (en) | Method for producing biologic diesel oil from rosin | |
| CN1182276C (en) | Titanium boride coating formula for cathode of aluminium electrolytic bath | |
| CN1175042C (en) | High temp. resistant inorganic fibre reinforced injection type phenolic moulding plastics | |
| CN1931777A (en) | Composite slurry for aluminium electrobath and its production process | |
| CN1620199A (en) | Composite electric heating carbon film and preparation method | |
| CN1632145A (en) | Process for sintering and infiltration preparation of tungsten chrome-copper composite materials | |
| CN1683597A (en) | Graphitic cathode carbon block for aluminium electrolytic bath and its producing method | |
| JPS6020471A (en) | Manufacture of members for fuel cell | |
| CN112143384B (en) | Graphite crucible repairing paste and graphite crucible repairing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |