Citrazinic acid copper zirconium bimetallic salt as well as preparation method and application thereof

A technology of copper citrazinate and bimetallic salt is applied in the field of copper zirconium citrazine bimetallic salt and its preparation and application, which can solve the problems of high toxicity of lead compounds, low melting point, unfavorable missile guidance and stealth, etc. Catalytic effect, the effect of simple synthesis process

Inactive Publication Date: 2014-03-12
XIAN MODERN CHEM RES INST
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Lead compounds are the most important catalysts for the practical application of double-base propellants today, but lead compounds are highly toxic, and the lead oxide produced by combustion and decomposition is white or light blue smoke in the engine exhaust, which is not conducive to the guidance of missiles and stealth, for which researchers have long carried out research on non-lead catalysts
[0004] In addition, the most widely used unstable combustion inhibitors are aluminum powder and Al 2 o 3 Although the addition of aluminum powder solves the problems of low propellant energy and high-frequency oscillation and unstable combustion, aluminum powder participates in the combustion reaction when the propellant burns, which adversely affects the ballistic performance of the engine. The tail of the tube produces a very thick plume, which is inconsistent with the low signature of the propellant required by modern weapons
And Al 2 o 3 Due to its low melting point, it is easy to condense with catalysts such as PbO and CuO to form large particles during combustion, which not only affects the catalytic efficiency of the catalyst, but also affects the inhibition efficiency of unstable combustion.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Citrazinic acid copper zirconium bimetallic salt as well as preparation method and application thereof
  • Citrazinic acid copper zirconium bimetallic salt as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 Preparation of copper zirconium double metal salt of citrazine

[0024] (1) Weigh 1.58g (0.0075mol) of zirconyl nitrate and dissolve it in 20mL of deionized water to form an aqueous solution of zirconyl nitrate; weigh 2.33g (0.015mol) of citrazine and disperse it in 150mL of deionized water, add 1.26g (0.015mol) sodium bicarbonate dissolved into a clear solution;

[0025] (2) Weigh 1.82g (0.0075mol) copper nitrate trihydrate and dissolve it with 30mL deionized water to form a solution, add it to the sodium citrazine solution, stir and mix evenly, heat up to 50°C, and react for 2h;

[0026] (3) Weigh 1.2g (0.03mol) of sodium hydroxide and dissolve it in 15mL of deionized water, add it to the sodium copper citrazine solution in step (2), react for 0.5h, add the oxygen nitrate prepared in step (1) The zirconium aqueous solution was heated to 70°C for 3 hours, then cooled and left to stand, and the precipitate was washed with deionized water several times, fil...

Embodiment 2

[0036] The preparation of embodiment 2 copper zirconium double metal salt of citrazine

[0037] (1) Weigh 1.58g (0.0075mol) of zirconyl nitrate and dissolve it in 20mL of deionized water to form an aqueous solution of zirconyl nitrate; weigh 2.33g (0.015mol) of citrazine and disperse it in 150mL of deionized water, add 1.26g (0.015mol) sodium bicarbonate dissolved into a clear solution;

[0038] (2) Weigh 1.875g (0.0075mol) of copper sulfate pentahydrate and dissolve it in 30mL of deionized water to form a solution, add it to the sodium citrazine solution, stir and mix evenly, heat up to 60°C, and react for 3h;

[0039] (3) Weigh 1.2g (0.03mol) of sodium hydroxide and dissolve it in 15mL of deionized water, add it to the sodium copper citrazine solution in step (2), react for 0.5h, add the oxygen nitrate prepared in step (1) The zirconium aqueous solution was heated to 80°C for 3 hours, then cooled and left to stand, and the precipitate was washed with deionized water several...

Embodiment 3

[0040] Example 3 Preparation of Copper-Zirconium Bimetallic Salt of Citrazine

[0041] (1) Weigh 1.58g (0.0075mol) of zirconyl nitrate and dissolve it in 20mL of deionized water to form an aqueous solution of zirconyl nitrate; weigh 2.33g (0.015mol) of citrazine and disperse it in 150mL of deionized water, add 0.80g (0.0075mol) sodium carbonate dissolved into a clear solution;

[0042] (2) Weigh 1.82g (0.0075mol) copper nitrate trihydrate and dissolve it with 30mL deionized water to form a solution, add it to the sodium citrazine solution, stir and mix evenly, heat up to 70°C, and react for 4h;

[0043] (3) Weigh 1.68g (0.03mol) of potassium hydroxide and dissolve it in 15mL of deionized water, add it to the copper sodium citrazinate solution in step (2), react for 0.5h, add the nitrate oxygen prepared in step (1) The zirconium aqueous solution was heated to 90°C for 5 hours, then cooled and allowed to stand, and the precipitate was washed with deionized water several times, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses citrazinic acid copper zirconium bimetallic salt shown in the structural formula (I). The citrazinic acid copper zirconium bimetallic salt has the advantages as follows: the synthetic process is simple; when used as a combustion catalyst, the citrazinic acid copper zirconium bimetallic salt can be decomposed to generate uniform and new ecological copper and oxide thereof, which are used as main catalytic active components, and high-melting-point zirconium dioxide generated during decomposition can be used as a catalyst promoter, so that the catalytic effect is improved further.

Description

technical field [0001] The invention relates to a copper-zirconium citrazine bimetallic salt and its preparation method and application. The bimetallic salt can be used as a dual-function ballistic improver of a solid propellant, that is, a combustion catalyst and a combustion stabilizer (also known as an unstable combustion inhibitor agent). technical background [0002] In terms of improving the combustion performance of double-base propellants or modified double-base propellant formulations, the current common method is to adjust the burning rate and pressure index of the propellant by adding some metal salts as combustion catalysts. 1%-5%. [0003] Lead compounds are the most important catalysts for the practical application of double-base propellants today, but lead compounds are highly toxic, and the lead oxide produced by combustion and decomposition is white or light blue smoke in the engine exhaust, which is not conducive to the guidance of missiles And stealth, f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07D213/79B01J23/72C06D5/00
CPCC06D5/10C07D213/79C07D213/803B01J21/066B01J23/72B01J35/393
Inventor 汪营磊赵凤起安亭姬月萍徐司雨裴庆仪建华高红旭刘卫孝高福磊姜菡雨
Owner XIAN MODERN CHEM RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap