Size grading controllable preparation method for nano vanadium nitride powder

A vanadium nitride powder, vanadium nitride technology, applied in chemical instruments and methods, nanotechnology, nanotechnology and other directions, can solve problems such as uneven particle size distribution, improve grinding efficiency, avoid accumulation, and achieve high product purity Effect

Active Publication Date: 2020-09-08
安徽中航纳米技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

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  • Size grading controllable preparation method for nano vanadium nitride powder
  • Size grading controllable preparation method for nano vanadium nitride powder
  • Size grading controllable preparation method for nano vanadium nitride powder

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Experimental program
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Effect test

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

The invention discloses a size grading controllable preparation method for nano vanadium nitride powder, and relates to the technical field of high-melting-point nitride powder preparation. The size grading controllable preparation method comprises the following steps: firstly, performing surface treatment on metal vanadium powder through dispersing grinding equipment; then, preparing vanadium nitride aggregates through a chemical vapor deposition method; and finally, performing grinding treatment through dispersing grinding equipment to obtain a nano vanadium nitride powder finished product.Metal vanadium powder is modified in the dispersing grinding equipment, so that modifying effect can be remarkably improved, surface coating is uniform, and follow-up chemical vapor deposition reaction is facilitated better. After the vanadium nitride aggregates are prepared, the dispersing grinding equipment is utilized to re-treat; and the grinding equipment with a reasonable structural design can prepare the nano vanadium nitride product with uniform product grain size distribution, 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 Applications(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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