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Vanadium oxide-loaded boron fuel with high energy density and impregnation preparation method thereof

A vanadium oxide, impregnation technology, applied in nuclear power generation, offensive equipment, explosives processing equipment, etc., can solve the problems of boron fuel ignition and combustion performance improvement, achieve low initial oxidation temperature, shorten laser ignition delay time, The effect of improving utilization efficiency

Active Publication Date: 2022-08-02
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a high-energy-density loaded vanadium oxide boron fuel and an impregnation preparation method to solve the problem of Under the premise of not affecting the energy density of boron powder in the prior art, the ignition and combustion performance of boron fuel needs to be further improved.

Method used

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  • Vanadium oxide-loaded boron fuel with high energy density and impregnation preparation method thereof
  • Vanadium oxide-loaded boron fuel with high energy density and impregnation preparation method thereof
  • Vanadium oxide-loaded boron fuel with high energy density and impregnation preparation method thereof

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Embodiment 1

[0041] The present embodiment provides a method for preparing a vanadium oxide-loaded boron fuel by an impregnation method. The method adopts an impregnation method to load vanadium oxide on the surface of boron powder to form a vanadium oxide-loaded boron fuel;

[0042] The impregnation method is based on NH 4 VO 3 The aqueous solution is an impregnation solution, and the boron powder particles are completely infiltrated, dried and calcined to obtain a vanadium oxide-loaded boron fuel;

[0043] Vanadium oxide is V 2 O 2, V 2 O 3 , VO 2 , V 2 O 4 and V 2 O 5 one or more of.

[0044] The equation for the reaction of the impregnation method is:

[0045]

[0046] Specifically, the method specifically includes the following steps:

[0047] Step 1, adding boron powder in the reaction vessel, then testing its saturated water absorption with water to obtain the volume of the dipping solution required by the boron powder;

[0048] Step 2, weigh 1g of boron powder and p...

Embodiment 2

[0056] This example provides the TG-DSC test of the vanadium oxide-loaded boron fuel. The TG-DSC test method is: weigh an appropriate amount of vanadium oxide-loaded boron fuel and place it in the sample stage of the TG-DSC instrument, set the instrument The heating rate is 10 °C / min, the test temperature range is 50-1000 °C, and the test atmosphere is air atmosphere, so that the TG and DSC curves of the vanadium oxide-loaded boron fuel can be obtained.

[0057] Specifically, weigh an appropriate amount of vanadium oxide-loaded boron fuel and place it in the sample stage of the TG-DSC instrument, set the heating rate of the instrument to be 10°C / min, the test temperature range to be 50-1000°C, and the test atmosphere to be an air atmosphere , so the TG and DSC curves of the vanadium oxide-loaded boron fuel can be obtained.

[0058] Table 1 shows the TG-DSC data of the vanadium oxide supported boron fuel of the present invention.

[0059] Table 1 Combustion performance of boro...

Embodiment 3

[0064] This example provides the ignition delay time test of the vanadium oxide-loaded boron fuel. The method for the ignition delay time test is: weigh an appropriate amount of vanadium oxide-loaded boron fuel and place it in the sample stage of the laser ignition instrument, and set the instrument parameters. is frequency Hz: 1000; duty cycle (1-40%): 3; pulse number: 1000; pulse train output light; power: 40W; pulse energy: 40mJ; pulse width: 30μs. In this way, the ignition delay time data of the vanadium oxide-loaded boron fuel can be obtained.

[0065] Specifically, weigh an appropriate amount of vanadium oxide-loaded boron fuel into the sample stage of the laser ignition instrument, and set the instrument parameters as frequency Hz: 1000; duty cycle (1-40%): 3; pulse number: 1000; pulse String light; power: 40W; pulse energy: 40mJ; pulse width: 30μs. like image 3 As shown, the ignition delay time of the vanadium oxide-loaded boron fuel prepared by the present inventio...

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Abstract

The invention provides a high-energy-density vanadium oxide-loaded boron fuel and an impregnation method preparation method, the method adopts an impregnation method to load vanadium oxide on the surface of boron powder to form the vanadium oxide-loaded boron fuel; according to the impregnation method, a solution of pentavalent vanadium salt or tetravalent vanadium salt serves as impregnation liquid, boron powder particles are completely infiltrated, drying and calcination are conducted, and the boron fuel loaded with vanadium oxide is prepared; the content of the vanadium oxide in the boron fuel loaded with the vanadium oxide is 0.1 wt.%-10 wt.%. Compared with a traditional physical blending method, the preparation method has the advantages that the composition, the structure and the content of the VOx catalyst on the surface of the boron powder can be accurately controlled, uniform and effective distribution can be realized, the utilization efficiency of the catalyst can be effectively improved, and the preparation method has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of high-energy solid propellants, and relates to boron fuel, in particular to a high-energy density vanadium oxide-loaded boron fuel and a preparation method by an impregnation method. Background technique [0002] Metals such as aluminum, boron, beryllium, magnesium, titanium, and zirconium have been used as fuel additives in high explosives, propellants, air-breathing propulsion, ramjets, and military applications. Among these fuels, the theoretical mass energy density (58kJ / g) and volume energy density (138kJ / cm) of boron powder 3 ) much higher than ordinary hydrocarbon fuels (42kJ / g and 38-40kJ / cm 3 ). Therefore, boron powder has been considered as a very potential and important fuel additive for many years. However, despite the excellent energy properties of boron, the viscous low melting point B formed on the surface of boron particles during oxidation 2 O 3 The oxide layer hinders the further oxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06D5/06C06B33/00C06B21/00C06B23/00C06B45/30
CPCC06D5/06C06B33/00C06B21/0083C06B23/007C06B45/30Y02E30/30
Inventor 冯昊李丹秦利军李建国龚婷张王乐惠龙飞胡逸云
Owner XIAN MODERN CHEM RES INST
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