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Method for preparing face-centered cubic vanadium nitride nano material and its product

A nanometer vanadium nitride, face-centered cubic technology, applied in chemical instruments and methods, nanotechnology, nitrogen compounds, etc., can solve the problem of high content of impurity elements, limiting the application of nanometer vanadium nitride and the promotion of production technology, and high production costs. problem, to achieve the effect of single composition, easy control of reaction temperature and low equipment requirements

Inactive Publication Date: 2017-03-22
湖北湖大天沭新能源材料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The traditional methods need to be prepared at high temperature, the production cost is high, and the content of impurity elements in the obtained product is relatively high, which greatly limits the application of nano vanadium nitride and the promotion of production technology

Method used

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  • Method for preparing face-centered cubic vanadium nitride nano material and its product

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Experimental program
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Effect test

Embodiment 1

[0029] Get the powdery ammonium vanadate 2g, hydrazine hydrochloride (N 2 h 4 2HCl) 4g and sodium 3g were put into a stainless steel kettle, and the reaction kettle was tightly sealed. Put it into the feed bin of the pusher kiln, increase it from room temperature to 500 °C at a rate of 20 °C / min, and then naturally cool the obtained product to room temperature. Take out the crude product, remove the excess metal sodium with absolute ethanol, then wash with hydrochloric acid, deionized water and absolute ethanol respectively, collect the product, and finally dry it in a vacuum oven at 50°C for 1 hour. The nano-scale vanadium nitride obtained by analyzing the product has a face-centered cubic structure, and the average particle size of the powder is 80-100nm, and the purity reaches 96%.

Embodiment 2

[0031] Get powdered ammonium vanadate 1g, hydrazine hydrochloride (N 2 h 4 Put 2.1 g of 2HCl and 1.6 g of sodium into a stainless steel kettle, and seal the reaction kettle tightly. Put it into the feeding bin of the pusher kiln, increase from room temperature to 450 °C at a rate of 20 °C / min, and then naturally cool the obtained product to room temperature. Take out the crude product, remove the excess metal sodium with absolute ethanol, then wash with hydrochloric acid, deionized water and absolute ethanol respectively, collect the product, and finally dry it in a vacuum oven at 50°C for 1.2 hours. The nano-scale vanadium nitride obtained by analyzing the product has a face-centered cubic structure, and the average particle size of the powder is 100-130nm, and the purity reaches 96%.

Embodiment 3

[0033] Get the powdery ammonium vanadate 3g, hydrazine hydrochloride (N 2 h 42HCl) 6.3g and sodium 4.8g were put into a stainless steel kettle, and the reaction kettle was tightly sealed. Put it into the feeding bin of the pusher kiln, increase from room temperature to 550 °C at a rate of 20 °C / min, and then naturally cool the obtained product to room temperature. Take out the crude product, remove the excess metal sodium with absolute ethanol, then wash with hydrochloric acid, deionized water and absolute ethanol respectively, collect the product, and finally dry it in a vacuum oven at 50°C for 1.5 hours. The nano-scale vanadium nitride obtained by analyzing the product has a face-centered cubic structure, and the average particle size of the powder is 70-90nm, and the purity reaches 97%.

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Abstract

The invention belongs to the technical field of preparation of vanadium alloys, and concretely relates to a method for preparing a face-centered cubic vanadium nitride nano material and its product. The method takes ammonium vanadate, hydrazine hydrochloride and sodium as raw materials, the raw materials are heated in a high-temperature reaction apparatus to prepare the product, and the product is naturally cooled to room temperature to the crude product face-centered cubic vanadium nitride nano material. The ammonium vanadate is taken as the raw material, the cost of source of the raw materials is reduced; reaction temperature is obviously reduced, the technology process is simplified, energy is saved, continuous production is convenient, the face-centered cubic vanadium nitride nano material has no pollution on environment, the product purity is high, and the crystallinity is good.

Description

technical field [0001] The invention belongs to the technical field of preparation of vanadium alloys, and in particular relates to a preparation method of a face-centered cubic vanadium nitride nanometer material and a product thereof. Background technique [0002] The metal vanadium has been used in the iron and steel industry for nearly a hundred years in the form of ferrovanadium. Vanadium nitrogen alloy is a new type of alloy additive, which can replace ferrovanadium nitride for the production of microalloyed steel. In the hot-rolled high-strength low-alloy steel, the microalloy element vanadium combines with the carbon and nitrogen elements in the steel and precipitates in the form of tiny carbonitrides. On the one hand, it plays the role of refining grains to obtain good toughness. On the one hand, it plays the role of precipitation strengthening, thereby significantly improving the yield strength of steel. Vanadium nitride generally has VN, V 2 N, V 3 N three for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/06B82Y40/00
CPCC01B21/0617C01P2002/72C01P2004/38C01P2004/64C01P2006/80
Inventor 田键周昱叶斌
Owner 湖北湖大天沭新能源材料工业研究设计院有限公司
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