CN103642284A - High-temperature anti-oxidation coating of high-temperature graphite electrode - Google Patents
High-temperature anti-oxidation coating of high-temperature graphite electrode Download PDFInfo
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- CN103642284A CN103642284A CN201310672666.7A CN201310672666A CN103642284A CN 103642284 A CN103642284 A CN 103642284A CN 201310672666 A CN201310672666 A CN 201310672666A CN 103642284 A CN103642284 A CN 103642284A
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Abstract
The invention relates to a graphite electrode coating, and particularly relates to a high-temperature anti-oxidation coating of a high-temperature graphite electrode coated with a high-temperature anti-oxidation ceramic coating, belonging to the technical field of electrode production. The high-temperature anti-oxidation coating is prepared from the following raw materials in parts by weight: 15-50 parts of aluminum oxide, 5-30 parts of diboron trioxide, 1-5 parts of magnesium oxide, 0-5 parts of dispersing agent and 20-70 parts of soluble phosphate solution. By adopting the coating disclosed by the invention, the graphite electrode can be effectively prevented from being oxidized, so that the consumption and production cost of the graphite electrode are reduced.
Description
Technical field
The present invention relates to a kind of Graphite Electrodes coating, especially a kind of anti-oxidant high-temperature coatings of pyrographite electrode that is coated with high-temperature antioxidation ceramic coating, belongs to electrode production technical field.
Background technology
Electrolytic anode consumption is greatly the one of the main reasons that causes electrolysis production cost high, accounts for 15% left and right of total cost, the important indicator that Shi Meiyige electrolysis production enterprise all will examine.2011, China's electrolytic aluminum output was 1,900 ten thousand tons.Yet, China's electrolytic aluminium anode carbon consumption is compared with international most advanced level, but there is larger gap, according to the literature, external anode consumes 406kg/t-Al only, and the average clean consumption of China's electrolytic aluminum is but 460 ~ 500 kg/t-Al left and right, China's electrolytic aluminum will consume approximately 950,000 tons of carbon anodes every year, not only cause production cost to increase, also cause a large amount of non-renewable high quality carbon wastings of resources simultaneously, seriously restricted further developing of China's Aluminium Industry.Therefore, be necessary prior art to be improved completely.
Summary of the invention
In order to overcome above-mentioned defect, the object of the invention is to provide a kind of pyrographite electrode anti-oxidant high-temperature coatings, to protect Graphite Electrodes not oxidized, and then reduces graphite electrode consumption and production cost.
To achieve these goals, the present invention adopts following technical scheme:
The anti-oxidant high-temperature coatings of pyrographite electrode, it comprises following raw materials by weight portion preparation gained: aluminium sesquioxide: 15-50; Boron trioxide: 5-30; Magnesium oxide: 1-5; Dispersion agent: 0-5; Soluble phosphoric acid salts solution: 20-70.
Described dispersion agent is the sour ammonium of lemon three, poly amic acid, wherein one or more of tripoly phosphate sodium STPP.
Soluble phosphoric acid salts solution is that phosphoric acid and aluminium hydroxide make.
Beneficial effect of the present invention:
Coating of the present invention is can more effective protection Graphite Electrodes not oxidized, and then reduces graphite electrode consumption and production cost.
Embodiment
Embodiment 1
The anti-oxidant high-temperature coatings of pyrographite electrode, it comprises following raw materials by weight portion preparation gained: aluminium sesquioxide: 15; Boron trioxide: 5; Magnesium oxide: 1; Soluble phosphoric acid salts solution: 20.
Described dispersion agent is the sour ammonium of lemon three, poly amic acid, wherein one or more of tripoly phosphate sodium STPP.
Soluble phosphoric acid salts solution is that phosphoric acid and aluminium hydroxide make.
Embodiment 2
The anti-oxidant high-temperature coatings of pyrographite electrode, it comprises following raw materials by weight portion preparation gained: aluminium sesquioxide: 50; Boron trioxide 30; Magnesium oxide 5; Dispersion agent 5; Soluble phosphoric acid salts solution: 70.
Described dispersion agent is the sour ammonium of lemon three, poly amic acid, wherein one or more of tripoly phosphate sodium STPP.
Soluble phosphoric acid salts solution is that phosphoric acid and aluminium hydroxide make.
Embodiment 3
The anti-oxidant high-temperature coatings of pyrographite electrode, it comprises following raw materials by weight portion preparation gained: aluminium sesquioxide: 30; Boron trioxide: 22; Magnesium oxide: 3; Dispersion agent: 2; Soluble phosphoric acid salts solution: 50.
Described dispersion agent is the sour ammonium of lemon three, poly amic acid, wherein one or more of tripoly phosphate sodium STPP.
Soluble phosphoric acid salts solution is that phosphoric acid and aluminium hydroxide make.
Embodiment 4
The anti-oxidant high-temperature coatings of pyrographite electrode, it comprises following raw materials by weight portion preparation gained: aluminium sesquioxide: 20; Boron trioxide: 10; Magnesium oxide: 4; Dispersion agent: 4; Soluble phosphoric acid salts solution: 30.
Described dispersion agent is the sour ammonium of lemon three, poly amic acid, wherein one or more of tripoly phosphate sodium STPP.
Soluble phosphoric acid salts solution is that phosphoric acid and aluminium hydroxide make.
Claims (3)
1. the anti-oxidant high-temperature coatings of pyrographite electrode, is characterized in that: it comprises following raw materials by weight portion preparation gained: aluminium sesquioxide: 15-50; Boron trioxide: 5-30; Magnesium oxide: 1-5; Dispersion agent: 0-5; Soluble phosphoric acid salts solution: 20-70.
2. the anti-oxidant high-temperature coatings of pyrographite electrode according to claim 1, is characterized in that: described dispersion agent is the sour ammonium of lemon three, poly amic acid, wherein one or more of tripoly phosphate sodium STPP.
3. according to the anti-oxidant high-temperature coatings of pyrographite electrode described in claims 1 or 2, it is characterized in that: soluble phosphoric acid salts solution is that phosphoric acid and aluminium hydroxide make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672666.7A CN103642284A (en) | 2013-12-12 | 2013-12-12 | High-temperature anti-oxidation coating of high-temperature graphite electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310672666.7A CN103642284A (en) | 2013-12-12 | 2013-12-12 | High-temperature anti-oxidation coating of high-temperature graphite electrode |
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| CN103642284A true CN103642284A (en) | 2014-03-19 |
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| CN201310672666.7A Pending CN103642284A (en) | 2013-12-12 | 2013-12-12 | High-temperature anti-oxidation coating of high-temperature graphite electrode |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005056A (en) * | 2014-05-28 | 2014-08-27 | 沈阳化工大学 | Method for preparing electrolytic aluminium carbon anode protective coating |
| CN105957725A (en) * | 2016-06-24 | 2016-09-21 | 安徽江威精密制造有限公司 | Composite electrode material added with bamboo charcoal and nickel aluminum hydrotalcite composite material and preparation method of composite electrode material |
| CN106702431A (en) * | 2015-07-24 | 2017-05-24 | 沈阳铸造研究所 | Anti-oxidation coating for carbon anodes in aluminum electrolysis |
| CN108299873A (en) * | 2016-08-31 | 2018-07-20 | 沈阳铸造研究所 | A kind of electroslag smelting casting insulation antioxidant coating |
| CN108456005A (en) * | 2018-04-20 | 2018-08-28 | 郑州大学 | Graphite antioxidant coating and preparation method thereof |
| CN111548657A (en) * | 2020-06-24 | 2020-08-18 | 大同通扬碳素有限公司 | Graphite electrode coating and preparation method thereof |
| CN111559924A (en) * | 2020-05-14 | 2020-08-21 | 中铜华中铜业有限公司 | Antioxidant graphite pouring tube and preparation method thereof |
| CN112645682A (en) * | 2020-12-29 | 2021-04-13 | 滨州双峰石墨密封材料有限公司 | Antioxidant, high-temperature antioxidant flexible graphite plate preparation process and graphite plate |
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| CN1036395A (en) * | 1988-04-07 | 1989-10-18 | 中国科学院化工冶金研究所 | Antioxidant protective paint for carbon product |
| KR20060094642A (en) * | 2005-02-25 | 2006-08-30 | 조현주 | Coating having improved high temperature wear resistance |
| CN101343193A (en) * | 2008-08-15 | 2009-01-14 | 昆明理工大学 | High-temperature oxidation resistant porous ceramic paint and manufacture method thereof |
| CN101343753A (en) * | 2008-08-15 | 2009-01-14 | 昆明理工大学 | Electrode coated with high temperature oxidation resistant ceramic paint and manufacture method thereof |
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2013
- 2013-12-12 CN CN201310672666.7A patent/CN103642284A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036395A (en) * | 1988-04-07 | 1989-10-18 | 中国科学院化工冶金研究所 | Antioxidant protective paint for carbon product |
| KR20060094642A (en) * | 2005-02-25 | 2006-08-30 | 조현주 | Coating having improved high temperature wear resistance |
| CN101343193A (en) * | 2008-08-15 | 2009-01-14 | 昆明理工大学 | High-temperature oxidation resistant porous ceramic paint and manufacture method thereof |
| CN101343753A (en) * | 2008-08-15 | 2009-01-14 | 昆明理工大学 | Electrode coated with high temperature oxidation resistant ceramic paint and manufacture method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005056A (en) * | 2014-05-28 | 2014-08-27 | 沈阳化工大学 | Method for preparing electrolytic aluminium carbon anode protective coating |
| CN106702431A (en) * | 2015-07-24 | 2017-05-24 | 沈阳铸造研究所 | Anti-oxidation coating for carbon anodes in aluminum electrolysis |
| CN106702431B (en) * | 2015-07-24 | 2018-05-29 | 沈阳铸造研究所 | A kind of electrolytic aluminium carbon anode antioxidizing paint |
| CN105957725A (en) * | 2016-06-24 | 2016-09-21 | 安徽江威精密制造有限公司 | Composite electrode material added with bamboo charcoal and nickel aluminum hydrotalcite composite material and preparation method of composite electrode material |
| CN108299873A (en) * | 2016-08-31 | 2018-07-20 | 沈阳铸造研究所 | A kind of electroslag smelting casting insulation antioxidant coating |
| CN108299873B (en) * | 2016-08-31 | 2020-11-06 | 沈阳铸造研究所 | Insulating antioxidant coating for electroslag casting |
| CN108456005A (en) * | 2018-04-20 | 2018-08-28 | 郑州大学 | Graphite antioxidant coating and preparation method thereof |
| CN108456005B (en) * | 2018-04-20 | 2021-04-27 | 郑州大学 | Graphite oxidation resistant coating |
| CN111559924A (en) * | 2020-05-14 | 2020-08-21 | 中铜华中铜业有限公司 | Antioxidant graphite pouring tube and preparation method thereof |
| CN111548657A (en) * | 2020-06-24 | 2020-08-18 | 大同通扬碳素有限公司 | Graphite electrode coating and preparation method thereof |
| CN112645682A (en) * | 2020-12-29 | 2021-04-13 | 滨州双峰石墨密封材料有限公司 | Antioxidant, high-temperature antioxidant flexible graphite plate preparation process and graphite plate |
| CN112645682B (en) * | 2020-12-29 | 2022-06-24 | 滨州双峰石墨密封材料有限公司 | Antioxidant, high-temperature antioxidant flexible graphite plate preparation process and graphite plate |
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Application publication date: 20140319 |