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Graphite electrode nano-antioxidant and preparation method

An anti-oxidant and graphite electrode technology, which is applied in the field of graphite electrodes, can solve the problems of reduced conductivity of graphite electrodes, cracks in the anti-oxidation layer, and low anti-oxidation temperature, so as to improve anti-oxidation performance, improve use performance, and improve physical and chemical properties. Effect

Active Publication Date: 2019-10-22
河北弘华节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes a graphite electrode nano-antioxidant machine and its preparation method, which solves the problems in the prior art that the anti-oxidation temperature of the graphite electrode antioxidant is not high during use, and the generated anti-oxidation layer will produce cracks during the heating process. There is a risk of peeling and falling off, and after being introduced into the graphite electrode, the conductivity of the graphite electrode will decrease.

Method used

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  • Graphite electrode nano-antioxidant and preparation method
  • Graphite electrode nano-antioxidant and preparation method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] A graphite electrode nano-antioxidant, consisting of the following components by weight: 20 parts of water, 20 parts of nano-oxide ceramic powder, 15 parts of graphene, 10 parts of polyethylene glycol, 10 parts of mercaptochitosan, and a stabilizer 6 parts, polyhedral oligomeric silsesquioxane 5 parts,

[0033] Wherein, the nano-oxide ceramic powder consists of the following components by weight:

[0034] 30 parts of silicon dioxide, 25 parts of aluminum oxide, 25 parts of phosphorus pentoxide, 20 parts of diboron trioxide, 15 parts of tin dioxide, 10 parts of titanium dioxide, and 5 parts of zirconia.

[0035] The stabilizer is a mixture of zinc borate and polyetherimide with a mass ratio of 2:1.

[0036] Among them, mercapto-chitosan is prepared as follows: take 10 parts of chitosan, 7 parts of 1-hydroxybenzotriazole (HOBt), add 100 parts of distilled water, stir to dissolve, add 20 parts of 1-(3- Add 20 parts of N-acetyl-L-cysteine ​​(NAC) to the aqueous solution o...

Embodiment 2

[0043] A graphite electrode nano-antioxidant, consisting of the following components by weight: 25 parts of water, 25 parts of nano-oxide ceramic powder, 18 parts of graphene, 15 parts of polyethylene glycol, 12 parts of mercaptochitosan, and a stabilizer 9 parts, polyhedral oligomeric silsesquioxane 7 parts,

[0044]Wherein, the nano-oxide ceramic powder consists of the following components by weight:

[0045] 33 parts of silicon dioxide, 28 parts of aluminum oxide, 27 parts of phosphorus pentoxide, 22 parts of diboron trioxide, 18 parts of tin dioxide, 13 parts of titanium dioxide, and 7 parts of zirconia.

[0046] The stabilizer is a mixture of zinc borate and polyetherimide with a mass ratio of 2:1.

[0047] Its preparation method is with embodiment 1.

Embodiment 3

[0049] A graphite electrode nano-antioxidant, consisting of the following components by weight: 30 parts of water, 30 parts of nano-oxide ceramic powder, 20 parts of graphene, 20 parts of polyethylene glycol, 15 parts of mercapto-chitosan, and a stabilizer 12 parts, polyhedral oligomeric silsesquioxane 10 parts,

[0050] Wherein, the nano-oxide ceramic powder consists of the following components by weight:

[0051] 35 parts of silicon dioxide, 30 parts of aluminum oxide, 30 parts of phosphorus pentoxide, 25 parts of diboron trioxide, 20 parts of tin dioxide, 15 parts of titanium dioxide, and 10 parts of zirconia.

[0052] The stabilizer is a mixture of zinc borate and polyetherimide with a mass ratio of 2:1.

[0053] Its preparation method is with embodiment 1.

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Abstract

The invention belongs to the technical field of graphite electrodes, and provides a graphite electrode nanometer antioxidant and a preparation method thereof. The graphite electrode nanometer antioxidant is prepared from the following components in parts by weight: 20 to 30 parts of water, 20 to 30 parts of nano-oxide ceramic powder, 15 to 20 parts of graphene, 10 to 20 parts of dispersant, 10 to15 parts of film-forming additive, 6 to 12 parts of stabilizer and 5 to 10 parts of polyhedral oligomeric silsesquioxane, wherein the dispersant is polyethylene glycol; the film-forming additive is thiol-based chitosan; the stabilizer is a mixture of zinc borate and polyetherimide in the mass ratio of 2 to 1. By adopting the graphite electrode nanometer antioxidant, the problem of conductivity decrease of a graphite electrode after introduction of the graphite electrode under the risks of peeling and falling off due to cracks generated in the heating process of a generated antioxidation layersince the antioxidation temperature is not high during use of the graphite electrode nanometer antioxidant in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of graphite electrodes, and relates to a graphite electrode nano antioxidant and a preparation method. Background technique [0002] There are deficiencies in the use of graphite electrodes used in silicon smelting, steelmaking or other smelting furnaces. Graphite electrodes start to oxidize above 600 degrees, accelerate oxidation above 1000 degrees, and increase suddenly above 1400 degrees. Oxidation loss accounts for 40% to 60% of the total electrode consumption, the higher the temperature, the faster the oxidation rate, due to the high temperature oxidation environment, the oxidation of the electrode accounts for about 60% of the total consumption. How to prolong the service life of graphite electrodes and reduce electrode consumption has attracted the attention of various steel mills and smelters. [0003] The oxidation loss of graphite electrodes can be effectively reduced by combining nano-antioxidant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/63C04B35/634C04B35/636C04B35/14
Inventor 于文齐
Owner 河北弘华节能科技有限公司
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