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A kind of copper zirconium tartrate compound and its preparation method and application

A technology of zirconium compound and copper tartrate, applied in the field of catalysts for solid propellants, can solve the problems of high frequency oscillation instability, low propellant energy, low characteristic signals, etc., and achieve the effect of reducing pressure index and inhibiting unstable combustion

Active Publication Date: 2017-01-18
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 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
In addition, the most widely used unstable combustion inhibitor in China is aluminum powder. 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. The ballistic performance of the engine is adversely affected, and more importantly, a very thick plume is produced at the tail of the nozzle, which is inconsistent with the low signature of the propellant required by modern weapons
Patent CN200910021380.6 reports that lead-zirconium tartrate compound, as a combustion catalyst and unstable combustion inhibitor, can adjust the combustion performance of double-base solid propellants and suppress unstable combustion phenomena, but the structure contains lead elements, which cannot meet the requirements of green Propellant Requirements

Method used

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  • A kind of copper zirconium tartrate compound and its preparation method and application
  • A kind of copper zirconium tartrate compound and its preparation method and application
  • A kind of copper zirconium tartrate compound and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of copper-zirconium tartrate double metal compound:

[0026] (1) Weigh 3.0g (0.02mol) of tartaric acid, disperse it in 50mL of deionized water, and fully dissolve it with 3.36g (0.04mol) of sodium bicarbonate to form a clear solution; weigh 4.85g (0.02mol) of copper nitrate trihydrate and remove Ion water was dissolved to form a solution, added to sodium tartrate, stirred and mixed evenly, heated to 50°C, and reacted for 2 hours;

[0027] (2) Weigh 1.6g (0.04mol) of sodium hydroxide and dissolve it in 15mL of deionized water, add it to the solution of step (1), react for 0.5h, weigh 4.3g (0.01mol) of zirconium nitrate and dissolve it in 20mL of deionized water to configure Solution, add copper sodium tartrate solution, heat up to 70°C, react for 3 hours, then cool and stand still, wash the precipitate with deionized water several times, filter and dry to obtain 4.6g of blue-black copper-zirconium tartrate bimetallic compound, Yield 90.2%.

[0028] Characte...

Embodiment 2

[0036] Preparation of copper-zirconium tartrate double metal compound:

[0037] (1) Weigh 3.0g (0.02mol) of tartaric acid, disperse it in 50mL deionized water, and fully dissolve it with 3.36g (0.04mol) sodium bicarbonate to form a clear solution; weigh 4.9g (0.02mol) Ion water was dissolved to form a solution, added to sodium tartrate, stirred and mixed evenly, heated to 60°C, and reacted for 3 hours;

[0038] (2) Weigh 1.6g (0.04mol) of sodium hydroxide and dissolve it in 15mL of deionized water, add it to the solution of step (1), react for 0.5h, weigh 4.3g (0.01mol) of zirconium nitrate and dissolve it in 20mL of deionized water to configure Solution, add copper sodium tartrate solution, heat up to 80°C, react for 3 hours, then cool and stand still, wash the precipitate with deionized water several times, filter, and dry to obtain 4.0 g of blue-black copper-zirconium tartrate bismetal compound, Yield 78.4%.

Embodiment 3

[0040] Preparation of copper-zirconium tartrate double metal compound:

[0041] (1) Weigh 3.0g (0.02mol) of tartaric acid, disperse it in 50mL deionized water, and fully dissolve it with 3.4g (0.04mol) sodium carbonate to form a clear solution; weigh 3.20g (0.02mol) of anhydrous copper sulfate with 30mL deionized water Dissolve in water to form a solution, add it to sodium tartrate, stir and mix evenly, heat up to 70°C, and react for 4 hours;

[0042] (2) Weigh 2.26g (0.04mol) of potassium hydroxide and dissolve it in 15mL of deionized water, add it to the solution of step (1), react for 1h, weigh 4.3g (0.01mol) of zirconium nitrate and dissolve it in 20mL of deionized water to form a solution , added to copper sodium tartrate solution, heated to 90°C, reacted for 5 hours, then cooled and left to stand, the precipitate was washed with deionized water several times, filtered, and dried to obtain 4.2g of blue-black copper-zirconium tartrate bismetal compound, producing The rate...

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Abstract

The invention discloses a copper zirconium tartrate compound. The copper zirconium tartrate compound is prepared through the steps of enabling the tartaric acid as a raw material to react with copper nitrate firstly to prepare copper tartrate, and then enabling the copper tartrate to react with zirconium nitrate to obtain the copper zirconium tartrate compound. The structural formula of the copper zirconium tartrate compound is as shown in the specification. The copper zirconium tartrate compound is mainly applied to a double base propellant as a combustion catalyst and an unstable combustion inhibitor.

Description

technical field [0001] The invention relates to a catalyst for solid propellants, in particular to a copper-zirconium tartrate compound and its preparation method and application. [0002] technical background [0003] 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%. [0004] 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. In addition, the most widely used unstable combustion inhibitor in China is aluminum powder. Although the addition of aluminum powder solves the problems of l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F19/00B01J31/22C06D5/06
Inventor 汪营磊赵凤起高福磊陈斌潘永飞丁峰刘卫孝姬月萍安亭仪建华任晓宁陆洪林陆婷婷
Owner XIAN MODERN CHEM RES INST
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