A controllable preparation method for particle size classification of nano-vanadium nitride powder

A vanadium nitride powder and particle size technology, which is applied in the field of high melting point nitride powder preparation, can solve problems such as uneven particle size distribution, achieve uniform product particle size distribution, reduce service life, and avoid accumulation effects

Active Publication Date: 2021-05-14
安徽中航纳米技术发展有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned technical problems in the preparation of vanadium nitride powder, the present invention provides a controllable preparation method of nano-vanadium nitride powder with particle size classification, which has the advantages of simple operation and high purity, and at the same time, overcomes the existing The defect of uneven particle size distribution in the preparation method

Method used

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  • A controllable preparation method for particle size classification of nano-vanadium nitride powder
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  • A controllable preparation method for particle size classification of nano-vanadium nitride powder

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Embodiment 1

[0030] see Figure 1-3 As shown, the dispersion grinding equipment is mainly composed of base plate 1, U-shaped block 2, movable box 4, feed box 12, motor 9 and other components. The structure and installation coordination relationship of each component are as follows:

[0031] The bottom of the U-shaped block 2 is fixed on the top of the bottom plate 1 . The grinding structure 3 is arranged inside the U-shaped block 2 , and the grinding structure 3 is composed of a grinding tank 31 , a rotating shaft 32 , a grinding wheel 35 , a filter plate 33 and a discharge pipe 34 . The both sides of grinding groove 31 are respectively fixed on the both sides of the inner wall of U-shaped block 2, between the both sides of the inner wall of grinding groove 31, rotation is connected with rotating shaft 32, and the outer surface of rotating shaft 32 is fixedly connected with grinding wheel 35, and grinding A filter plate 33 is fixedly connected between both sides of the inner wall of the g...

Embodiment 2

[0041] A controllable preparation method of particle size classification of nano-vanadium nitride powder. In this embodiment, the metal vanadium powder is first surface-treated by dispersing and grinding equipment, and then the vanadium nitride aggregate is prepared by chemical vapor deposition. Finally, the grinding process is carried out again through the dispersion grinding equipment to obtain the finished nano-vanadium nitride powder. The specific steps are:

[0042] 1. The steps for surface treatment of the metal vanadium powder are: adding the metal vanadium powder into the feeding box of the dispersion grinding equipment, and then adding ethanol, sodium fatty acid, and 2-ethylhexyl phosphate mono-2-ethylhexyl ester respectively as Solvent, surface treatment agent and chelating agent; the weight ratio of metal vanadium powder, ethanol, sodium fatty acid, and 2-ethylhexyl phosphate mono-2-ethylhexyl is 1:2:0.1:0.5; processed by dispersing and grinding equipment Modified ...

Embodiment 3

[0046] A controllable preparation method of particle size classification of nano-vanadium nitride powder. In this embodiment, the metal vanadium powder is first surface-treated by dispersing and grinding equipment, and then the vanadium nitride aggregate is prepared by chemical vapor deposition. Finally, the grinding process is carried out again through the dispersion grinding equipment to obtain the finished nano-vanadium nitride powder. The specific steps are:

[0047] 1. The steps for surface treatment of the metal vanadium powder are: adding the metal vanadium powder into the feeding box of the dispersion grinding equipment, and then adding ethanol, sodium fatty acid, and 2-ethylhexyl phosphate mono-2-ethylhexyl ester respectively as Solvent, surface treatment agent and chelating agent; the weight ratio of metal vanadium powder, ethanol, sodium fatty acid, and 2-ethylhexyl phosphate mono-2-ethylhexyl is 1:1:0.5:0.1; processed by dispersing and grinding equipment Modified ...

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Abstract

A method for the controllable particle size classification of nano-vanadium nitride powder, which relates to the technical field of high melting point nitride powder preparation. First, the metal vanadium powder is surface-treated through dispersion grinding equipment, and then the vanadium nitride agglomerates are prepared through chemical vapor deposition. Finally, the dispersion grinding equipment is used for grinding again to obtain the finished nano-vanadium nitride powder. The modification of metal vanadium powder is carried out in dispersion and grinding equipment, which can significantly improve the modification effect and make the surface coating uniform, which is more conducive to the subsequent chemical vapor deposition reaction. After the vanadium nitride agglomerates are prepared, they are processed again using dispersion grinding equipment. Through this grinding equipment with reasonable structural design, nano-vanadium nitride products with uniform particle size distribution can be prepared, and the product quality is high.

Description

technical field [0001] The invention relates to the technical field of preparation of high-melting-point nitride powder, in particular to a method for preparing nano vanadium nitride powder with particle size classification and controllability. Background technique [0002] Nitride powders with high melting point, high hardness, high chemical stability and excellent electrical and optical properties have attracted widespread attention. The unique physical and chemical properties make this kind of nitrides widely used in semiconductor devices, microelectronics, porous ceramics and other fields. [0003] Vanadium-nitrogen alloy is a new alloy additive that can replace ferrovanadium for the production of microalloyed steel. The addition of vanadium nitride to steel can improve the comprehensive mechanical properties of steel such as strength, toughness, ductility and thermal fatigue resistance, and make the steel have good weldability. When the same strength is achieved, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C4/26B02C23/02B02C4/42B02C4/28C01B21/06B82Y30/00B65D88/66
CPCB02C4/26B02C4/28B02C4/286B02C4/42B65D88/66B82Y30/00C01B21/0617C01P2002/72C01P2004/03C01P2004/64C01P2006/80
Inventor 王开新吴斌孙虹杨得全谢劲松韩成良
Owner 安徽中航纳米技术发展有限公司
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